With over 26,000 combinations Bulgin’s Polysnap mains power inlet modules offer a very adaptable and flexible solution to panel design.

Click HERE for Polysnap Catalogue

Polysnap allow combinations of mains inlets and outlets, filtered inlets, switches, fuseholders, voltage selectors, indicators and circuit breakers mounted in either horizontal or vertical format bezels ready for quick snap-fit assembly. The compact design occupies the minimum of panel area and a single rectangular mounting hole, offering easy installation for this mains power entry module.

To complement Polysnap the Polyflange range offers a flange fixing alternative for designers who prefer the security of screw fixing. All types and variations are available through Bulgin’s extensive
distribution network.

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Home Page: https://www.epreston.co.uk/epblog/

The new power entry modules, types 6135 and 6136, from SCHURTER combine appliance inlet and circuit breaker into one component. The two types provide a simple and cost effective means of over current protection, particularly suited for applications with motors.

The IEC C20 appliance inlet integrates the TA35 circuit breaker from SCHURTER. The 1-pole circuit breaker is equipped with a thermal trip-free release and offers current ratings from 50 mA to 16A (ENEC) or 20A (cURus).

 The rocker is available in various colours, legends, with or without illumination. The power entry module is arranged for cost effective snap-in mounting. Typical areas of applications are to be found in laboratory equipment, medical appliances, fit-ness equipment and ergo meters, with automatic winding and coiling devices, as well as with do it yourself machines. The product is approved to ENEC and cURus.

Technical features:
- Appliance inlet C20 according to IEC 60320 with circuit breaker TA35
- 1-pole circuit breaker
- Snap-in mounting for panel thicknesses 1.5 mm – 2.5 mm
- ENEC & cURus approvals for 16 A / 20 A at 250VAC

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ASO: Quick-acting fuse up to 1000 VDC in a compact design 10.3x38
FSO: Fuseholder for standard DIN rail mount

Schurter introduces the new solar fuse ASO and fuseholder FSO with quick-acting characteristic to protect photovoltaic and similar DC-applications. The new product extend the strategic segment “renewable energy” with a 1000 VDC fuse with a current range from 1 A to 30 A and a touch safe fuseholder FSO. As PV systems have grown in sitze, so have their circuit protection requirements such as voltage rating. This high performance DC fuse is in a compact 10.3x38 mm package.

The ASO fuse protects PV modules, conductors and similar DC-applications from the potentially devastating effects of a low short circuit current in systems upwards of 1000 VDC.

The wire bonding makes the fuse stable and reliable with an operating temperature range of -40°C to 85°C. The ASO fuse is especially designet for protecting DC low short circuit current and overvoltage conditions like solar panels (strings), inverters, battery charges and combiner boxes.

The touch safe fuseholder FSO is designed for grid-tie or off-grid array combiners and standard DIN rail mount.

The products includes cURus agency approval, are RoHs compliant and halogen-free.

Technical Features:
- Current range: 1 A to 30 A
- Rated voltage: 1000 VDC
- Quick-acting characteristic according to UL 248-14
- Breaking capacity of 20 kA

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Compact TA35 with new rotary knob actuation in 1-, 2- and 3-pole versions

Schurter introduces an additional actuator to its exisiting and successful TA35 circuit breaker series. This new actuator provides a grip and turn style knob, which is ideal for switching with gloves or where longer feedback is desired. The design allows for customer specific colored faceplates and knob designs.

The new TA35 rotary switch offers IP 40 protection and fits panel thicknesses ranging from 2 to 3 mm. Terminals are for 6.3x0.8 mm connections. Switch and thermal overload protection current ratings range from 0.05 A to 20 A for 1- and 2- pole types, and 0.05 A to 12 A for the 3-pole version. Typcial applications are power tool machines, high pressure cleaners, power generators and compressors. The CBE is approved according to IEC 60934, UL 1077, CSA C22.2 235 and GB 17701 and is RoHS compliant.

- Thermal Circuit Breaker 1-, 2- or 3-Pole
- Full VDE, cURus and CCC approvals
- Rotary Knob Actuator with custom options
- Ambient Temperature: -30 °C bis +60 °C
- Positively Trip-free release

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Compact Thermal Circuit Breaker Spots Factory Mounted Protection Cover

Schurter introduces new protection covers for its popular TA35 series Circuit Breaker forEquipment. The 2-pole circuit breaker is now available with factory mounted covers in addition to its range of covers supplied separate for customer installation. Cover options include transparent cover with or without collar, or collar only. These value added features are new to circuit breaker design, reducing parts count and providing a cost savings alternative to conventional products requiring secondary steps for IP protection.

The TA35 series has a high degree of customer appeal due to its compact form and attractive design. The rocker-actuating switch functions as a switch only or with thermal overload protection. It can be supplied either with or without illumination, including the trendy blue, for a total of ten rocker colors. Various standard legends and customer specific symbols are also offered. The TA35 with IP 65 protection cover is ideal for applications exposed to dust or splashing water. Typical applications are laboratory equipment for chemical and medical applications, food processing equipment and commercial appliances, wood and masonry machines, construction site equipment, power generators and cleaning equipment. The series is designed to meet IEC 60934, UL 1077 and CSA C22.2 235 and carries VDE and cURus approvals.

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Blade-type fuse replacements distinguish genuine overloads

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 E-T-A 1626 miniaturised circuit breaker designed as a direct replacement for blade-type fuses. It provides superior protection to fuses through its ability to distinguish between temporary surges and genuine overloads. As well as protecting electrical circuits in cars, trucks and buses, it can also be used in watercraft and other 12/24V DC wiring applications, such as heavy-duty and off-road vehicles.

The new blade-type E-T-A 1626 Mini-CBE is available in three versions – with automatic reset, with a reset button, or with both a manual release and a reset button. The colour coded E-T-A 1626s are available in all the standard current ratings offered by blade fuses from 5A up to 30A. Depending on the version, when the 1626 has tripped it resets automatically when the load is removed or the re-set button pops up showing clearly which circuit has a fault.

The colour coding provides quick and easy identification to ensure correct plug-in placement in standard ISO 8820-3 Type F automotive blade-type fuse blocks, or the E-T-A 1626 can be fitted to purpose-designed E-T-A modular mounting bases. At the same time, the electrical performance characteristics of the E-T-A 1626 enable it to distinguish between temporary surges and genuine overloads, providing superior protection to fuses. This is especially important for motors, lamp loads and other circuits where discrimination is necessary between in-rush currents and normal operating conditions. Also, E-T-A circuit breaker performance is stable over time: fuses can age, causing their blow characteristics to change, which may lead to nuisance blowing of fuses with consequent problems while the vehicle is in use.

Overall dimensions of the body of the overcurrent circuit breaker are just 25mm in height above the blade x 13.3mm wide x 7mm thick. The operating temperature range is -40 degrees C to +85 degrees C.

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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 variant of its extremely versatile and reliable 3120 Series of rocker-actuated, combined switch / circuit breakers. The optional integral LED illumination in a range of colours that is now available on the Type 3120 offers power saving and improved endurance compared to earlier versions with filament bulbs. The well-proven 3120 is used widely for applications which include electrical machinery, power tools, household appliances and garden machinery, as well as for marine control panels, medical equipment and communications systems.

The versatile S-type E-T-A 3120 thermal circuit breaker range is designed for frequent ON/OFF switching under normal load conditions, at the same time providing accurate overcurrent protection with a trip-free mechanism. The illumination is offered in a choice of red, yellow, green and blue. The 3120 is suitable for switching applications up to 50V DC or 240/415V AC with a choice of current ratings from 0.1A up to 20A for single or double-pole applications. Designed for snap-in frame mounting, it can be specified with a water splash protection cover for rugged environments, and an actuator guard that protects against inadvertent resets.

The new LED versions require less than 2mA in operation, compared to earlier versions with filament bulbs which required between 20mA and 60mA. Improved illumination endurance, as well as reduced susceptibility to shock, vibration and low temperatures, also means lower maintenance requirements.

The E-T-A 3120 range carries EN 60934 Circuit Breaker for Equipment approval as well as approvals from respected authorities such as UL and CSA. The 3120 provides proven reliability for many demanding applications, including recreational and workboats as it is suitable for even the harshest conditions experienced at sea.

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E-T-A Circuit Breakers has introduced a new version of its compact ESX10 electronic overcurrent protection product for automation applications. Designed to reduce costly downtime and danger to personnel on production lines, the new ESX10-T is ready for direct rail mounting, singly or in groups. Single or group signalisation is quickly attainable.

The type ESX10 Electronic Circuit Breaker provides electronic overcurrent protection according to UL2367 for 24V DC control circuits and load currents from 1A 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. It ensures selective disconnection of 24V DC switch-mode power supply (SMPS) loads while optimally matching the application requirements.

The E-T-A ESX10 provides 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: the ESX10 will shutdown electronically a single faulty output, while allowing all other load circuits connected to the same SMPS to continue working as normal.

The E-T-A ESX10-T is just 12.5mm wide and can be mounted directly on a DIN/EN rail. All electrical connections are then made by means of convenient screwless terminals. 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 electronically via a re-set input, or by a manual ON/OFF button. The ON/OFF button also allows manual disconnection when starting up a system or during maintenance.

For processes powered by 24V DC switch-mode power supplies without circuits protected by a device such as the ESX10, an overload in a single circuit will cause the power supply to shut down the output to all the circuits it supplies. On recovery it may go into ‘hiccup’ mode. Costly downtime, scrap and even danger to personnel may result. Traditional protection solutions do not provide the answer. Circuit breakers with fast operating characteristics would be likely to cause nuisance trips during current peaks and switching on of capacitive loads. On the other hand MCBs are too slow, and neither delayed operation nor high performance circuit breakers will respond adequately in this situation to overcurrents. The power supply will therefore switch off completely, bringing all connected loads, i.e. the entire system, to a standstill.

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Finder has announced the introduction of the 7P Series of Surge Protection Devices (SPD), developed specifically to comply with BS-EN62305: Protection Against Lightning, providing protection against lightning strikes, or surges caused by short circuit and contact switching in electrical systems.

The 7P SPD Series employs replaceable varistors, enabling the cost effective replacement of the active element of the SPD when required.  As Type 2 arresters for single-phase and three-phase electrical system, they will appeal to the design and manufacture of systems and electrical equipment for use in buildings, where the safety issues associated with lightning have to be addressed.

There are four versions in the 7P Series, all of which provide visual and remote signalling of varistor status, providing a clear indication to building maintenance personnel when replacement is needed.

The publishing of the BS-EN62305 series fundamentally changed the way the UK addresses the issue of lightning protection for buildings and makes the assessment of the associated risks and their mitigation a statutory requirement.

Virtually all elements of a building’s structure, its electrical services and the electrical equipment within it must be considered for the risk aspects associated with the potential for lightning strikes.

Protection devices such as the Finder SPD range are employed to reduce the risk of hazards to life and physical damage to persons, reduce the risks of damage to structures and services and to minimise failure of electrical and electronic systems and equipment within the structure of a build.

Finder’s 7P series is available in 4 different versions:

Single-phase systems:
7P.21.8.275.1020 Varistor protection (L - N)
7P.22.8.275.1020 Varistor protection (L - N) + spark gap
protection (N - PE)

3-phase systems:
7P.24.8.275.1020 Varistor protection (L1, L2, L3-N) + spark gap protection (N- PE)
7P.25.8.275.1020 Varistor protection (L1, L2, L3 - N) + varistor protection (N-PE)

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