E-T-A Circuit Breakers Ltd

Thermal circuit breakers, are ideal for protecting loads against overcurrent. However, bimetals reach their limits in applications requiring a very fast thermal disconnection. There is a solution for these applications: E-T-A's 1410 circuit breaker with hot wire principle.

The trip time of thermal circuit breakers depends on the level and duration of the overcurrent and the ambient temperature. Therefore, they only provide a delayed disconnection compared to magnetic circuit breakers, i.e. in case of small overcurrents, it takes notably longer until the faulty circuit is disconnected. This makes thermal circuit breakers the ideal protection device for loads such as motors, transformers and supply lines, as they can handle short, non-hazardous overcurrents without being damaged. If the overcurrent continues for too long, the circuit breaker reliably trips. This helps prevent undesired early or nuisance tripping. The delay also ensures that high current peaks of motors, transformers or magnetic valves do not lead to a disconnection.

BIMETAL, FUSIBLE AND HOT WIRE PRINCIPLE

The bimetal is the conventional trip element in thermal circuit breakers. Complementing bimetals, also fusibles, hot band or hot wire tripping elements are used. Hot wire tripping elements are very effective as they help realize thermal circuit breakers with very fast trip curves. Additionally, they are temperature-insensitive due to their high operating temperature of about 300 °C.

THE 1410 WITH HOT WIRE PRINCIPLE

E-T-A's 1410 series are single pole, thermal circuit breakers with current ratings up to 10 A, for AC 240 V and DC 28 V rated voltages. The tripping element is a bistable hot wire element providing a fast and precise trip curve in the event of an overcurrent. All five 1410 versions are hardly bigger than a sugar cube. This means that they can be easily installed even in applications with small space requirements.

Caravan Salon, Düsseldorf, Germany
27.08. - 05.09.2021

SMART, Linz, Austria
19. - 21.10.2021

For the use as main relay in all utility vehicles, e.g. buses, trucks, construction machinery, specialty vehicles or mining vehicles.

New technologies and future oriented systems are crucial for the design of on-board electrical systems.
The growing number of electrical vehicle components and the need for data transmission between single devices quickly leads to large and heavy cable harnesses and increased wiring complexity.

The SCS3000 and SCS1000 series are extremely compact power distribution systems with integrated logic. The modules offer a wealth of functions together with high performance in a very small package. The SCS3000/1000 are ideal in terms of upgradeability for fleet modernisation, retrofits and projects where space saving is paramount.

Typical applications

• Agricultural and forestry equipment, construction machinery, specialty vehicles, truck & bus
• Centralised and decentralised power distribution
• Small to large system architectures

Overview

• Up to 280 A total current
• Up to 40 A per channel
• High-side and low-side switching
• IP67 housing

Benefits

• Space-saving and robust through efficient semi-conductor technology
• Enhanced safety and diagnosis through real-time analysis
• Progressive load management through softstart and inrush-functions 
• Adapted to your requirements through configuration via graphic programming environment

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More product info

E-T-A Circuit Breakers has introduced a new, simplified, low-cost, decentralised electrical power distribution system, each module offering up to 10 outputs rated up to 8A/10A per channel. E-T-A PowerPlex Compact provides localised monitoring, control and reliable protection of safety-critical electrical circuits, at the same time offering reduced cabling costs and build time. Communication with the PowerPlex modules is via CAN-bus using SAE J1939 based protocols. Each localised module will handle up to 60A, providing programmable control based on up to 12 digital and 3 analogue inputs as well as programmable overload protection.
Currently available as a 12V DC version, E-T-A PowerPlex Compact is straightforward to install and can be used for applications such as battery monitoring of split charging circuits, undervoltage monitoring and control, remote operations based on level and flow sensors, responding to limit switches in tail lifts, dimming of lights and for timed controls. It will switch loads and protect them and the electrical harness against overcurrent and short circuits. Featuring high-end power semiconductors with integral protective elements for switching and protection, there are no mechanical components such as relays which may be subject to wear, vibration and shock.
One or more PowerPlex modules are positioned as required around a vehicle to facilitate the local connection of loads, switches and sensors. Each module can collect sensor data from level and temperature sensors, for example. E-T-A PowerPlex is an open system featuring two CAN-bus communication channels which enable control via an E-T-A touch panel or keypad(s), if required, to enable load switching, and monitoring and display of data from analogue and digital sensors.
The initial programming of each module via a cable linked PC is straightforward, using configuration software supplied with the product. It enables, for example, the linking of inputs and outputs, programming of timer functions and activation of dimmers. The current ratings for overcurrent protection of the load circuits and time characteristics can also be programmed.

E-T-A designs and manufactures a broad range of electro-mechanical and electronic products for circuit protection, control and instrumentation, including the world’s largest range of circuit breakers for equipment (CBEs). E-T-A equipment is specified and installed by a wide variety of industrial OEMs and end-users, with key markets including air, sea and land transport, process control, computers and communications, medical equipment, domestic appliances, machine tools and robotics.

E-T-A is an international company with headquarters in Altdorf, Germany and production facilities in several other countries, together with marketing, sales and technical operations throughout the industrial world. Its European, North American and Far Eastern markets are served by some 1,500 employees.

Thermal-magnetic circuit breaker for automation in industrial applications and buildings

E-T-A Circuit Breakers, quality designer and manufacturer of a broad range of electro-mechanical and electronic products for circuit protection, has introduced a new compact thermal-magnetic circuit breaker type 2216-S, increasing its plug-in mounting product range for automation in industrial and buildings applications. The single or double pole E-T-A 2216-S enables cost-effective integration of protection against overcurrent in a control cabinet or in a local area.
With an overall width of 12.5mm and a depth of only 70mm, the type 2216-S occupies very little space in the control cabinet. The new circuit breaker has specifically been designed for side-by-side, snap-in installation in new E-T-A rail-mountable sockets - the 80plus (with screwless PT connecting terminals) or the 81plus (with screw terminals). The sockets allow time-saving power distribution and signalling by means of plug-in type jumpers. In addition, coding pins ensure ease of allocation between breaker and socket according to the “lock-and-key principle”. The dimensions of type 2216-S with socket meet the requirements of the DIN 43880 standard (built-in equipment for electrical installation).

Three characteristic curves for perfect adjustment to loads and lines

The single or double pole circuit breakers E-T-A 2216-S are available in different current ratings from 0.5A to 16A. Auxiliary contacts are optionally available (change-over contacts) for initiating alarm circuits and subsequent switching operations or for status indication of the main contact. Type 2216-S has been designed for voltages up to 240 V AC and for up to 50 V DC (single pole version) or 80 V DC (2 pole version). Three different trip curves are available, allowing perfect adjustment to the load and line requirements. The instantaneous F1 curve for DC circuits corresponds to the standard A characteristic of circuit breakers. The fast trip curve F2 and the medium delay curve M1 are suitable for both AC and DC applications. The F2 curve corresponds to trip characteristic B and the M1 curve corresponds to the C characteristic to IEC/EN 60898/1 (DIN VDE 0641-11). The new circuit breaker type 2216-S will carry approvals to IEC EN 60934, UL 1077 and UL 508 and is therefore suitable for international use.
 

E-T-A designs and manufactures a broad range of electro-mechanical and electronic products for circuit protection, control and instrumentation, including the world’s largest range of circuit breakers for equipment (CBEs). E-T-A equipment is specified and installed by a wide variety of industrial OEMs and end-users, with key markets including air, sea and land transport, process control, computers and communications, medical equipment, domestic appliances, machine tools and robotics.

E-T-A is an international company with headquarters in Altdorf, Germany and production facilities in several other countries, together with marketing, sales and technical operations throughout the industrial world. Its European, North American and Far Eastern markets are served by some 1,500 employees.

E-T-A Circuit Breakers, quality designer and manufacturer of a broad range of electro-mechanical and electronic products for circuit protection, specialises in providing customised circuit protection solutions designed to facilitate the installation and use of E-T-A products. The customised service involves designing solutions in conjunction with the customer and building them fully interconnected to an agreed schedule. This service extends from the design and manufacture of bus bars, switch panels and other accessory items to complete pre-wired distribution sub-racks and power control systems. The service is suitable for manufacturing and process control, in a wide range of industries including telecommunications, petro-chemical, pharmaceutical, rail, water, aerospace and defence.E-T-A has hundreds of thousands of different circuit breaker configurations to choose from, complemented by accessories, terminal blocks and power distribution rails, which together represent one of the widest selections of products of their type available. Whatever the scale of a customer’s requirements, E-T-A will work with the customer to turn a concept into a reliable and cost-effective solution. Pro-E® software enables E-T-A designers to create 3-D computer models for the demonstration of the ideas and to respond rapidly to enquiries.
A variety of mounting configurations is available to help provide the best solution for individual applications. Some models are pluggable, utilising E-T-A mounting sockets, offering versatility and convenience - particularly during service and maintenance – while track-mountable products are available for installation in control cabinets. As a further option, securely fixed panel mounted circuit breakers will enhance overall system robustness.
Crucial to a properly designed and reliable power distribution system is the correct selection of circuit protection, including current ratings and trip characteristics, to ensure that neither the cables nor the load itself are damaged by overload or short circuit. It is also of paramount importance to avoid any adverse effects on the power supply or loads adjacent to a faulty circuit. E-T-A electro-mechanical and electronic circuit breakers and protectors are ideally suited to this purpose. All applications of E-T-A products are characterised by an uncompromising demand for safety, performance and reliability. They rely on unrivalled knowledge and expertise, gained through 60 years of developing thermal, thermal-magnetic, magnetic and high performance circuit breakers as well as electronic switching and control devices. This experience has helped to establish the E-T-A trademark as a recognised symbol of quality and dependability, trusted worldwide to safeguard reputations. E-T-A products are hard at work in aircraft, marine vessels, land vehicles, communication systems, medical equipment, factory automation, and many more applications.

E-T-A designs and manufactures a broad range of electro-mechanical and electronic products for circuit protection, control and instrumentation, including the world’s largest range of circuit breakers for equipment (CBEs). E-T-A equipment is specified and installed by a wide variety of industrial OEMs and end-users, with key markets including air, sea and land transport, process control, computers and communications, medical equipment, domestic appliances, machine tools and robotics.

E-T-A is an international company with headquarters in Altdorf, Germany and production facilities in several other countries, together with marketing, sales and technical operations throughout the industrial world. Its European, North American and Far Eastern markets are served by some 1,500 employees.

E-T-A Circuit Breakers, quality designer and manufacturer of a broad range of electro-mechanical and electronic products for circuit protection, has extended its range of terminal blocks with the sockets 80plus, for direct line insertion without tools, and the 81plus. Both can be populated selectively with the pluggable E-T-A thermal-magnetic circuit breaker 2216-S or with the pluggable E-T-A electronic circuit overcurrent protector REF16-S. The new one-way and side-by-side mountable sockets offer a space-saving overall width of just 12.5mm and can easily be snapped onto a DIN rail.

The new E-T-A 80plus is the first socket made by E-T-A with ‘push-in’ technology for direct line insertion. This means that rigid, flexible or compressed wires can be pushed directly into the terminals without any additional tools. The new socket type 80plus has a 6mm² supply terminal, two 4mm² load output terminals and three 1.5mm² signalling terminals.

For the new E-T-A 81plus, all terminals are fitted with screw terminals for multi-lead connection: the screw head taking a standard or Phillips screwdriver. The clamps are made of top quality copper alloys ensuring maximum contact forces in minimum space. The type 81plus has a 10mm² supply terminal, a 10mm² load output terminal and three 2.5mm² signalling terminals.

For both types, plug-in type jumpers allow time-saving power distribution and signalling. In addition, so-called coding pins allow customer coding of the current rating of each of the slots: devices with higher current ratings can no longer erroneously be inserted, so that any hazards caused by wrong current ratings are excluded. An integral retaining clip ensures a tight and reliable fit in the socket even under harsh shock and vibration conditions.

The new plug-in type 80plus can be combined with the new type 81plus with screw terminals: for instance, the 81plus can be used as a supply terminal while socket 80plus is used for power and signal distribution. Accessories are identical. Both new E-T-A sockets have been designed for voltages up to AC 277 V and DC 80 V.

Once the sockets have been installed, the E-T-A types 2216-S and REF16-S can easily be plugged in. The single or double pole E-T-A 2216-S enables cost-effective integration of protection against overcurrent in a control cabinet or in a local area for automation in industrial and buildings applications. The REF 16-S provides selective protection for 24V DC load circuits powered by switch-mode power supplies, offering a combination of active electronic current limitation in the event of a short circuit and overload disconnection at typically 1.25 times rated current.

Even the exchange of devices, e.g. when a higher current rating is required before the system is brought into service, is straight forward thanks to the E-T-A plug-in design: simply by pulling the device out of the socket and putting in the new circuit breaker. This can really save time for many users, all the more so as the devices feature hot-swap capability allowing them to be exchanged when the system is live.

E-T-A designs and manufactures a broad range of electro-mechanical and electronic products for circuit protection, control and instrumentation, including the world’s largest range of circuit breakers for equipment (CBEs). E-T-A equipment is specified and installed by a wide variety of industrial OEMs and end-users, with key markets including air, sea and land transport, process control, computers and communications, medical equipment, domestic appliances, machine tools and robotics.

E-T-A is an international company with headquarters in Altdorf, Germany and production facilities in several other countries, together with marketing, sales and technical operations throughout the industrial world. Its European, North American and Far Eastern markets are served by some 1,500 employees.

E-T-A Circuit Breakers, quality designer and manufacturer of a broad range of electro- mechanical and electronic products for circuit protection, has now obtained ATEX approval for special versions of its ESX10 and ESX10-T electronic overcurrent protection products for automation applications. Designed to reduce costly downtime and danger to personnel on production lines, the ESX10 can be plugged directly into an E-T-A Module 17plus power distribution socket which is mountable on a DIN/EN rail, while the ESX10-T is for direct rail mounting. The ATEX-approved 3G category of ESX10 and ESX10-T are intended for the use in Ex zone 2, making them particularly useful for applications in process control in the chemical, petroleum and gas industries.The compact E-T-A ESX10 and ESX10-T Electronic Circuit Breakers are just 12.5mm wide and both provide electronic overcurrent protection for 24V DC (and 12V DC ESX10-T only) control circuits with load currents from 0.5A to 12A. In the event of overload or a short circuit, the faulty load will be disconnected electronically by means of a mosfet in the output circuit of the protector. They provide the best possible protection for loads, such as controls, sensors, transformers and solenoid valves, which are fed by switch-mode power supplies or battery-buffered power supplies.The E-T-A ESX10/ESX10-T provide active current limitation to 1.8 or 1.5 times its rated current. This allows capacitive loads of up to 20,000μF or lamp loads to be switched on without affecting other loads on the power supply. At the same time, this electronic active current limitation responds much faster to overload or short circuit conditions than switch-mode power supplies: it will shutdown electronically a single faulty output, while allowing all other load circuits connected to the same SMPS to continue working as normal.

 
Status indication is provided by a multicolour LED plus an integral short-circuit proof status output or potential-free signal contact. In the event of an overload or short circuit, the load circuit may be re-activated by a manual ON/OFF button, or, as an option, electronically via a re-set input. The ON/OFF button also allows manual disconnection when starting up a system or during maintenance.
 

E-T-A designs and manufactures a broad range of electro-mechanical and electronic products for circuit protection, control and instrumentation, including the world’s largest range of circuit breakers for equipment (CBEs). E-T-A equipment is specified and installed by a wide variety of industrial OEMs and end-users, with key markets including air, sea and land transport, process control, computers and communications, medical equipment, domestic appliances, machine tools and robotics.

E-T-A is an international company with headquarters in Altdorf, Germany and production facilities in several other countries, together with marketing, sales and technical operations throughout the industrial world. Its European, North American and Far Eastern markets are served by some 1,300 employees.

E-T-A Circuit Breakers, quality designer and manufacturer of a broad range of electro- mechanical and electronic products for circuit protection, has introduced a new electronic circuit protector providing active current limitation for selective protection of load circuits powered by 24V DC power supplies in industrial and building automation applications. The new E-T-A REF 16-S is a single pole overcurrent circuit protector with a purely electronic trip characteristic taking up just 12.5mm width in a control cabinet. Like the recently introduced E-T-A 2216 it fits the E-T-A 80plus and 81plus sockets, reducing wiring and installation time. Type REF16-S allows a cost-optimised integration of overcurrent protection into a compact decentralised control cabinet.

Like the recently introduced E-T-A 2216, the E-T-A REF16-S has specifically been designed for side-by-side, snap-in installation in new E-T-A rail-mountable sockets - the 80plus (with screwless PT connecting terminals) or the 81plus (with screw terminals). The sockets allow time-saving power distribution and signalling by means of plug-in type jumpers. In addition, coding pins ensure ease of allocation between breaker and socket according to the “lock-and-key principle”. The dimensions of type REF16-S with socket meet the requirements of the DIN 43880 standard (built-in equipment for electrical installation).

Selective load protection by the E-T-A REF16-S is available in current ratings 1A, 2A, 3A, 4A and 6A and it only disconnects the faulty path in the event of an overload or short circuit in the load circuit without any repercussions on the 24V DC supply. Thus voltage dips are prevented in the event of a failure in one single circuit, without leading to a failure of all loads connected to the switch-mode power supply.

Type REF16-S limits the short circuit current to typically 1.25 times rated current and disconnects the faulty path after 800ms at the latest. However, inrush current peaks or peaks during normal operation will be tolerated. It is therefore no problem to switch capacitive loads up to 20,000µF. In the event of an overload the integral power MOSFET disconnects promptly from 1.25 times rated current.

A multi-coloured LED provides visual status and failure indications. Signalling can optionally be made available by an integral short-circuit-proof status output or auxiliary contacts. Remote operation is also possible via a remote reset signal or a remote control signal ON/OFF. The manual ON/OFF button on the device allows intentional start-up of individual load circuits.

 

E-T-A designs and manufactures a broad range of electro-mechanical and electronic products for circuit protection, control and instrumentation, including the world’s largest range of circuit breakers for equipment (CBEs). E-T-A equipment is specified and installed by a wide variety of industrial OEMs and end-users, with key markets including air, sea and land transport, process control, computers and communications, medical equipment, domestic appliances, machine tools and robotics.

E-T-A is an international company with headquarters in Altdorf, Germany and production facilities in several other countries, together with marketing, sales and technical operations throughout the industrial world. Its European, North American and Far Eastern markets are served by some 1,300 employees.

E-T-A Circuit Breakers, quality designer and manufacturer of a broad range of electro- mechanical and electronic products for circuit protection, has introduced a new, low-cost family of miniaturised thermal circuit breakers. Unlike standard fuses, the E-T-A 1657, 1658 and 1659 single-pole circuit breakers are easily and quickly reset after tripping due to overcurrent. Between them they offer a choice of current rating and tripping characteristics, blade or screw terminals, thread-neck or snap-in mounting, and button or auto reset. Watersplash protection for the actuator button is offered as an accessory.

Ideally suited for the protection of motors, transformers and cables in a very wide range of industrial and consumer applications, all circuit breakers in the family feature a trip-free, snap-action mechanism ensuring reliable and automatic disconnection in the event of an overcurrent, even with a blocked actuator button. Each model has different dimensions and different characteristics. Between them they offer a full range of current and voltage ratings for the protection of AC and DC loads.The new E-T-A 1657 is a single-pole, thread-neck mounting R-Type TO CBE with EN 60934 and other international approvals. The type 1657 can be specified for applications in a choice of current ratings from 5A to 20A for use on 250V AC or 32V DC, with blade or screw terminals. Featuring a manual reset button, the body measures just 29.1mm x 22.5mm and 14.4mm in width. Typical protection applications include industrial equipment, power tools, battery chargers, UPS, motors, medical equipment and power generators.The E-T-A 1658 is a single-pole R-Type TO CBE with EN 60934 and other international approvals. The type 1658 can be specified with a thread-neck and push-button actuation or a flush head with auto-reset functionality. It is available in a choice of current ratings from 5A to 30A for use on 240V AC or 28V DC with blade terminals. The body measures 32.0mm x 27.0mm and 14.0mm in width. Typical protection applications include power supplies, battery chargers, motors and consumer products.The new E-T-A 1659 is a single-pole, thread-neck mounting R-Type TO CBE with EN 60934 and other international approvals. The type 1659 can be specified for applications in a choice of current ratings from 5A to 30A for use on 250V AC or 32V DC, with blade or screw terminals. Featuring a manual reset button, the body measures 31.0mm x 35.0mm and 14.4mm in width. Typical protection applications include industrial equipment, power tools, battery chargers, UPS, motors, medical equipment and power generators.

E-T-A designs and manufactures a broad range of electro-mechanical and electronic products for circuit protection, control and instrumentation, including the world’s largest range of circuit breakers for equipment (CBEs). E-T-A equipment is specified and installed by a wide variety of industrial OEMs and end-users, with key markets including air, sea and land transport, process control, computers and communications, medical equipment, domestic appliances, machine tools and robotics.

E-T-A is an international company with headquarters in Altdorf, Germany and production facilities in several other countries, together with marketing, sales and technical operations throughout the industrial world. Its European, North American and Far Eastern markets are served by some 1,300 employees.

E-T-A Circuit Breakers announced the availability of its new X3130 Appliance Inlet Module. The X3130, integrated with E-T-A’s double-pole 3130 thermal circuit breaker, combines a C14 appliance inlet module, rocker switch and resettable overcurrent protection in one compact package.  This three-in-one device allows design engineers to streamline the number of components in their designs - cutting installation time by 66 percent - and reduce the overall cost and size of the equipment.

Available in current ratings up to 15A and AC 240V, the new X3130 solution provides protection from harmful overloads and potential short circuits. It has a C14 appliance inlet module (to IEC 60320) and is designed for screw-type mounting which reduces the chance of accidental removal of inlet from equipment by users.
 
The X3130 Appliance Inlet Module is approved to UL, VDE and CCC and, in combination with the 3130-FA.A thermal circuit breaker, is designed for use in applications where the equipment and power cord are packaged separately  – primarily in medical, office, laboratory, floor care and professional audio equipment applications.

The X3130 Appliance Inlet Module and 3130-FA.A Thermal Circuit Breaker are available directly from E-T-A or through its authorized distributor network. For more information on the X3130 Appliance Inlet Module and 3130-FA.A circuit breaker, call E-T-A at 

+44 1296 420336

 or click here.

E-T-A Circuit Breakers, quality designer and manufacturer of a broad range of electro- mechanical and electronic products for circuit protection, has introduced a new solid-state power relay offering a noiseless relay function together with electronic overcurrent protection in a single unit, thus minimising the space requirements and the number of plug-in components.

Designed for standard 4-pole automotive relay sockets (to ISO 7588), the E-T-A Electronic Standard Relay ESR10-P ISO Maxi is suitable for 12V DC on-board electrical systems, is rated to 50A and offers remote re-setting in the event of an overload trip. The ESR10 is suitable for a wide range of 12V DC systems, for example switching and protecting motors, lamps and magnetic valves in road, construction, agricultural and rail vehicles as well as for work and leisure boats, and for industrial applications in process and automation. The solid-state design of the E-T-A ESR10 relay offers wear-free switching and is unsusceptible to shock, vibration and dust. Silent switching can bring benefits for applications inside a passenger cabin. It also requires a far smaller closed and switching current compared to a standard electromechanical relay. In the event of a trip through short circuit or overload, the type ESR10-P can simply be re-set remotely by switching it off and on, rather like a re-settable fuse. The type ESR10-N ISO Micro is a smaller version solid-state relay offering short circuit protection only and is rated to 30A.The ESR10-P ISO Maxi is packaged in a 30cm x 30cm x30cm housing and complements the long-established E-T-A E-1048-8 which also combines the capability of a remotely controllable electronic load disconnecting relay with self-limiting characteristics, and optimised overcurrent protection similar to that of a high quality circuit breaker. The E-1048-8 is suitable for wide ranging 12/24V DC applications for protection up to 30A where solenoids, motors or lamp loads have to be switched, protected or monitored, including use in vehicles, on land and sea, in telecommunications, and in the process industry.  For further information on E-T-A and its products, visit www.e-t-a.co.uk.

About E-T-A

E-T-A designs and manufactures a broad range of electro-mechanical and electronic products for circuit protection, control and instrumentation, including the world’s largest range of circuit breakers for equipment (CBEs). E-T-A equipment is specified and installed by a wide variety of industrial OEMs and end-users, with key markets including air, sea and land transport, process control, computers and communications, medical equipment, domestic appliances, machine tools and robotics.

E-T-A is an international company with headquarters in Altdorf, Germany and production facilities in several other countries, together with marketing, sales and technical operations throughout the industrial world. Its European, North American and Far Eastern markets are served by some 1,300 employees.

The World Wide Web site www.e-t-a.co.uk offers further information on E-T-A and its products.

E-T-A Circuit Breakers, quality designer and manufacturer of a broad range of electro-mechanical and electronic products for circuit protection, has introduced the first track-mountable electronic circuit breaker with physical isolation offering worldwide approvals. The new E-T-A ESS31-T mechatronic circuit breaker provides overcurrent protection against overloads and short circuits for whenever the current in a 24V DC control circuit might exceed the current carrying capacity of the conductor or the rated value of a component.

The E-T-A ESS31-T is a fully featured circuit breaker for equipment protection with an electronic-hybrid trip characteristic, which is approved as a UL 1077 supplementary protector and also to EN/IEC 60934, for fixed current ratings from 0.5A to 12A. It ensures globally certified protection of equipment in control cabinets and field components,  and protects 24V DC control circuits in cabinets designed in accordance with UL508A.

Featuring a single trip curve for all types of loads, the ESS31-T enables protection of a wide range of 24V DC switch-mode powered automation and safety equipment. In the event of a failure, the ESS31-T will shutdown electronically a single faulty output, while allowing all other load circuits connected to the same power supply to continue working as normal.  It ensures a controlled stoppage of the machinery and allows efficient troubleshooting: after the problem is solved, the load output can be simply re-activated by a press of the ON/OFF button.In applications with long load lines or small cross section cables, the ESS31-T typically disconnects an overcurrent of 1.2 times the rated breaker current within 500ms, with final physical isolation after 5 seconds. In the event of a low resistance short circuit in a load path, disconnection will occur after 100ms. High short currents or capacitive in-rush currents of electronic modules are limited by the integral current limitation of the circuit breaker, preventing wear of the mechanical contacts or switchgear. This minimises the need to regularly replace mechanical components and reduces machine downtime, while saving on maintenance and service costs. The E-T-A ESS31-T is just 12.5mm wide and features status indication, visually by a multi-coloured LED and the ON/OF switch position, as well as by integral signal outputs.

The new REX12D-TE2 provides more flexibility with adjustable current ratings

E-T-A’s new REX12D-TE2 electronic overcurrent protection combines unrivalled flexibility, enabled by adjustable current ratings from 1A to 10A with a slim design of only 6.25 mm per channel. Easy adjustment of the current ratings via IO link or Modbus RTU or with a button directly on the device.

As with all other REX12 devices, no further accessories are required. Ease of mounting and minimised wiring time help save time and money.

REX-Quat-Pack

The REX-Quat-Pack, a four-channel combination consisting of one EM12-T supply module and two REX12D-TE2 electronic circuit protectors, does not only save space in the control cabinet, but also cuts storage efforts because only one part number is required for 4 channels.

• Ease of current rating adjustment from 1A to 10A provides high flexibility
• It cuts inventory costs because only one product is required for all current ratings

• It saves space because the modules are only 6.25 mm wide per channel
   

more product info

Protecting and switching in a single component!

For many design engineers it is the perfect solution to make their equipment reliable, compact and economic - all at once. The 3120-N thermal circuit breaker is the professional all-in-one solution for devices and machines. Well-proven a million times over, the 3120 reliably disconnects overcurrent and also serves as an ON/OFF switch. After tripping due to an overcurrent, the user can easily and quickly reset the 3120-N to resume operation. Time-consuming replacement of fuses is eliminated.

Your benefits:

• Unrivalled equipment availability
• Reduced mounting and wiring time
• Space-saving design
• Reduced planning and storage costs
• Enhanced reliability

Seven in one

Example for parts reduction in the event of a 2-pole protection

E-T-A’s 3120-N circuit breaker here replaces 2 blade fuse holders, 2 blade fuses, a double pole rocker switch as well as the two cable connections between the rocker switch and fuse holder.

You are free to choose

A wealth of product versions is available of the 3120-N circuit breaker/switch combination. Depending on the requirements, you can choose between rocker and push button actuation. Product versions range from standard types to versions with actuator and/or dust and water splash protection.

More product infos:

Typ 3120-N

Use under harsh environmental conditions

The globally unique and innovative accordion-style seal and the version with a water splash cover exclude machine failures and product rejects on grounds of dust or water ingress. Compared to conventional dust and water splash protection solutions, these two versions of 3120-N do not only seal the actuating area. The rubber gasket encloses the bezel and tightly presses to the panel, so that the mounting cut-out is also protected.

Easy actuation

Thanks to freely accessible rocker actuators and large push buttons, the breakers can conveniently be operated even if fitted with actuator guards or water splash protection. Switching the device is simple, even when the user is wearing gloves. Particularly noteworthy is the globally unique variant with innovative accordion-style seal. Even this version features a freely accessible rocker which provides a clearly visible status indication (ON or OFF).

International approvals

Thanks to a great number of international approvals, the 3120-N is fit for global use.

Important information: New generation of 3120 circuit breakers

The 3120 circuit breaker/switch combination has been one of E-T-A’s best-selling products for many years. Based on feedback we received from our customers over the past few years, we launched a new enhanced generation, the N design, in July 2019. Thanks to e.g. freely accessible rocker actuators and large push buttons, the new breakers can always conveniently be operated, even if fitted with actuator guards or water splash protection. In addition, the globally unique accordion-style seal for the rocker-actuated version excludes machine failures and product rejects caused by dust or water ingress.

Important to know: Identical mounting cut-outs and performance data allow quick and easy interchange of the breakers, supported by unchanged approval data.

Can we support you with cross-referencing? Please do not hesitate to get in touch with your contact person in our Customer Service (ICS).

By the end of this year, the new design version 3120-N will entirely replace the predecessor 3120-F. The last order date for series 3120-F is the 31 December 2020 (date of last order acceptance). Production stop will be on 30 June 2021.
 

Changes in form, fit and function of 3120-N:

Product design (form)

• New flange design with rounded shape
• New actuator guard (rocker-actuated version)
• New accordion-style seal (rocker-actuated version)
• Larger push buttons
• Elimination of 3120-F2, 3120-F6 and 3120- F7 versions

Product integration (fit)

• Minor changes of the panel thicknesses of versions with dust/water splash protection (see table in data sheet page 5)
• No changes with regard to mounting holes

Product function and approvals (function)
No changes

Please do not hesitate to call in the event of any questions:

Contact

All information at a glance:

Info: New generation of 3120 circuit breakers

The SPR10-T is a solid state remote power controller and is suitable for DC 12 V and DC 24 V applications. A special feature of the SPR10-T is that it combines switching and protecting functions in a single device. In addition, it offers status indication by means of LED and status output.

Reliable switching operation with overcurrent protection 

Unlike conventional electronic and mechanical relays, the SPR10-T provides integral overcurrent protection. An additional external overcurrent protection element is not required. In the event of a failure, only the faulty path is disconnected and the fault is indicated at the device or at the status output; all other circuits remain unaffected. This ensures quick and easy trouble-shooting and increases machine uptime and system availability. 

Four functions in one unit

• solid state relay with control input (ON delay 1.5 ms)
• electronic overcurrent protection (trip at 1.3 x IN)
• status signalling (by means of LED and status output)
• integral power distribution (by means of busbars) 

For powerful loads

Direct mounting on symmetrical rails allows fast and flexible installation. In addition, several devices can very easily be connected by means of busbars, reducing wiring time to a minimum.
With current ratings of 20A and 25A, the SPR10-T is particularly suitable for powerful loads with a high current demand and a cable cross sections up to 10mm².

The combination of these properties is, with a width of only 12.5 mm, an efficient and compact solution for your application. You do not only save components, storage costs and space in the control cabinet, but you also significantly reduce planning and wiring efforts.

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E-T-A in times of the Corona crisis

E-T-A takes the Sars-CoV-2 virus disease, the so-called “Corona virus”, very seriously. For quite a while, we have been busy with prevention and planning to be prepared in the best possible way. All measures taken till yet have proved their worth. They ensured that we have not had any infections so far and that our business operations can continue nearly without any restrictions.

The measures we determined at E-T-A include:

• The subject of corporate infection protection and health is placed on the highest level, i.e. with the management board.
• We installed an interdisciplinary crisis committee to plan and implement preventive action and possibly required emergency measures.
• Our staff is continuously kept informed via various channels about current developments of the infection, preventive measures and recommended procedures, partly also as binding instructions.
• Internal communication ways are kept short to advise temporary absences of employees.
• We established comprehensive stand-in arrangements.
• We observe the hygiene regulations issued by the Federal Centre for Health Education.
• We cancelled all national and international business trips into the risk zones as defined by the Robert-Koch-Institute until further notice.
• We limit internal meetings to the minimum and to virtual meeting rooms and conference calls.
• We transfer all jobs which are not attached to a certain place to home offices.

Currently, no one can seriously forecast the future development of the number of infections nor the effects this will have on our staff and on the staffs of our suppliers and partners. At the same time, we will do our utmost to keep up the availability and performance of our products and services in the accustomed quality.

Functional enhancement of the REX12D intelligent system

The REX12D intelligent system is ideally adapted to the requirements of machine construction and process control. The compact and modular design, the innovative connection technology and the great number of different devices provide a competitive edge over standard solutions to protect your DC 24 V power distribution.

By extending the functional scope of the REX12D system you are free to decide where to set your focus.

Standard version with status recording of 32 channels

In the standard version, the EM12D-TIO supply module communicates with now 32 channels instead of 16 channels. The status of the channels is transmitted to the superordinate IO link master.

Enhanced version with recording of measuring values and data analysis.

The extended version sets the focus on the recording of measuring values and on the analysis of these measuring data of 16 channels. By means of a cyclical transmission of the load currents, changes in the current consumption of individual loads can quickly be detected. This allows efficient control and maintenance and significantly cuts downtimes.

More information:

Flyer: Intelligent circuit protection with the Rex12D system

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CPC12 – transparency through web server and fieldbus connection

The requirements of machine and plant construction regarding machine uptime and a consistently high production quality are increasing. Stable processes are based on a reliable and transparent DC24V protection and power distribution system. The REX12D system in combination with the CPC12 bus controller is exactly tailored this requirement. 

The modular power distribution system offers the following components:

• EM12-T supply module, 
• Intelligent CPC12  bus controller, 
• double channel REX12D electronic circuit protector 
• PM12 potential distribution modules

E-T-A’s CPC12 bus controller has a separate DC24V power supply. This allows independent supply of the circuit protectors. CPC12 records all status information and measuring values and visualises them by means of the internal web server. Via the field bus interface, the data are also made available to the superordinate control systems.

Your benefits:

• Maximises plant and machine uptime through clear failure detection, high transparency and remote diagnosis
• Saves space through the slim design of the circuit protectors and potential modules
• Increases the flexibility of system planning through many different modules

Brochure ControlPlex@ CPC12

Product information

Power saving and reduced fuel consumption also with a monostable design

In the event of a power disruption, the electro-mechanical MPR20 will at once go into its original state due to its monostable design. Monostable means that only one switching status is stable – which is normally the OFF condition. The ON condition can only be achieved by excitation of the coil. 

The specific design with an electronically activated coil reduces the holding power by the factor 10. Reduction of holding power by 80 % and of the pull-in power by 50 % allows direct connection to the controlgear and provides additional cost and environmental advantages in spite of a monostable design.

Reliable and robust design, remaining unchanged over the entire life span

It is the lightest water-proof and dust-proof power relay with protection degree IP67 on the market. The use of modern fibre reinforced moulded materials saves more than 50 % weight compared to standard relays. Using special epoxies ensures  a long life span even under harshest environmental conditions.

Typical applications

• Buses, trucks, construction machinery, agricultural vehicles and forestry equipment as well as special vehicles
• Air conditioning, compressor units, battery master switches and applications in accordance with machinery directives

Standards

• ISO 16750
• IATF 16949
• ECE R118
• ECE R10
• ASIL upon request

Benefits

• Reduced fuel consumption and CO2 emissions due to a 90 % lower holding power
• Flexible installation for demanding applications due to a robust, water- and dust-proof design
• Reduced installation time through direct connection to the controlgear

More product info

CAN-capable power distributor for decentralized control and monitoring of loads with comprehensive diagnostic functions

More and more smart components in the vehicle and less and less installation space are topical subjects in the market. The SCS200 is the right answer to all these requirements.

It is an intelligent power distribution system, allowing decentralised control and monitoring of loads via the CAN bus. The design features a pcb-based power distribution in a compact IP67 enclosure. The SCS200 modules are plug-and-play solutions which help you reduce space and wiring time. Diagnostic capabilities (load current, voltage, load protection, status) and integral CAN connection ensure reliability and connectivity at the same time. The SCS200 was especially designed for the use in construction machinery, agricultural machinery and special vehicles.

Benefit:

• Enhanced safety and load management through diagnostic functions and CAN connectivity
• Space-saving and flexible installation due to compact IP 67 housing
• Reduction of wiring effort through Plug&Play solution

Typical application:

• Agricultural machinery, construction machinery, special vehicles, trucks and buses
• Decentralised power distribution
• Replacement of industrial distribution systems

Standards:

• ISO 16750
• ECE R10
• SAE J1939

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E-T-A’s HVR10 high voltage relay is a hybrid powerful high voltage relay in a compact design. It combines physical isolation of high voltages via an electro-mechanical contact and state-of-the-art semi-conductor technology.

The HVR10 is the right relay for all utility vehicles, e.g. buses, trucks, construction machinery, specialty vehicles or mining vehicles. The powerful unit is equally suitable for charging stations and energy storage.

Benefits:

• Reliable disconnections even in critical conditions up to 2,000 A at 1,000 V.
• High protection of the on-board electrical system through integral fault detection and signalling
• Long lifespan due to low-arc switching operation

Typical applications:

• Buses, trucks, construction machinery and speciality vehicles with electrical power train
• Charging stations, power storage and main relays in the vehicle

Standards:

• ISO 16750
• IATF 16949
• ECE R10

More product info

An E-T-A classic with a new look

E-T-A’s 3120 circuit breaker works as an ON/OFF switch in machinery and devices. It also provides reliable disconnection in the event of an overcurrent. After tripping due to an overcurrent, the user can easily and quickly reset the 3120-N to resume operation. Time-consuming replacement of fuses is eliminated. Now, the well-proven classic presents itself with a new accordion-style seal.

Enhanced uptime of equipment and machinery

The new innovative bellows-type seal offers IP65 degree of protection. Even fine dust or water jets will not cause any damage. Failures or machine downtimes are prevented.

Compared to standard PVC splash covers, the new E-T-A accordion-style seal not only protects the actuation area, but it also protects the mounting hole with an all-round rubber lip.

With regard to environmental influences, the new accordion-style seal has quite a few advantages. Conventional splash covers made of PVC become yellow when exposed to the sun. They also become brittle and can crack due to environmental influences. The silicone seal, however, is unsusceptible to ozone and ultraviolet light. Acids or oils cannot damage the new seal either. This is very positive, because discoloured or dirty splash covers often block the visibility of the rocker and its position.

Easy actuation

The new seal of E-T-A’s 3120-N series leaves the rocker actuator easily accessible. Switching the device is simple, even when the user is wearing gloves. And what is more: Due to the freely accessible rocker actuator, the switching condition (ON or OFF) can always clearly be discerned.

• SPS/IPC/DRIVES, Nuremberg, Germany
  27. - 29.11.2018, Hall 3.C, Stand 3.C-428

  More info: International website

  IO-Link Anwender-Workshop, 
  15.01.2019 Hamburg / H4 Hotel Bergedorf
  12.02.2019 Nürnberg / Maritim Hotel
  29.05.2019 Essen / ATLANTIC Congress Hotel
  22.10.2019 Mannheim / Dorint Kongresshotel

  More info: German website

  MEORGA MSR-Spezialmesse
  10.04.2019 MEORGA Chemiedreieck in Halle
  19.06.2019 MEORGA Nord in Hamburg-Schnelsen
  18.09.2019 MEORGA Südwest in Ludwigshafen
  23.10.2019 MEORGA Südost in Landshut

• More info: German website