Circuit breakers

Do you need help making a decision?  Take a look at our buying guide
129 companies | 690 products
exhibit your products

& reach your clients in one place, all year round

Exhibit with us
Search
Circuit breakers | Choosing the Right Circuit Breaker
A circuit breaker is an essential safety device for any piece of equipment or network through which an electric current flows. Quite simply it will, as the name indicates, break the circuit and stop the current flowing if it detects any dangerous anomalous current, voltage, or temperature levels in the circuit. Generally, in an industrial context, electricity passes through a circuit-breaker box where it is divided into several circuits. Each of these circuits...
air-operated circuit breaker
air-operated circuit breaker
AE-SW series

Primary current: 1,000 A - 6,300 A
VAC: 500 V

Make electrical equipment multi-functional by means of Mitsubishi air circuit breakers that are suitable for protection of the main circuit Air circuit breakers ...

See the other products
MITSUBISHI Automation
digital circuit breaker
digital circuit breaker
NV series

Primary current: 10 A - 250 A
VAC: 100 V - 400 V

The earth leakage circuit breaker (ELCB) is used to protect persons against electric shock hazards and to prevent a fire. This also have the same function as MCCB.

See the other products
Mitsubishi Electric Europe B.V.
thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
TM12-MSM series

Primary current: 10, 16, 15 A
VAC: 240 V
VDC: 28 V

• Metal switch non-illuminated and illuminated • Quick connect terminals 6.3 x 0.8 mm / screw terminals • Uninterruptible power supply • Power tools • Household appliances

See the other products
SCHURTER
electronic circuit breaker
electronic circuit breaker
5TY1350 series

Primary current: 16, 10, 6 A
VAC: 230 V

... (electronic circuit protection device) is one of the first of its kind in the world with electronic switching. Its impressive features include ultra-fast switching, flexible parameterization, and a wide range of functions. ...

See the other products
Siemens Low-voltage – Power distribution
generator circuit breaker
generator circuit breaker
HB3-C

Primary current: 15,000 A
VAC: 24 kV

The compact design of the HB3-C generator circuit-breaker is customizable and offers an ideal solution for retrofit projects and new applications. It’s maintenance-free and SF6-free for more efficiency ...

See the other products
Siemens Medium-voltage – Power distribution
vacuum circuit breaker
vacuum circuit breaker
3AV1 Blue LT

Primary current: 40,000 A
VAC: 145 kV
Rating: 30 A

... further and faster. Your clean air live tank circuit breaker with zero F-gases and zero global warming potential The outstanding technical performance and low lifecycle cost of vacuum circuit ...

See the other products
Siemens Energy – Power transmission
overcurrent circuit breaker
overcurrent circuit breaker

Primary current: 30 A - 5,000 A
VAC: 120 V - 600 V

... separate upstream fault protection and respective interconnections, which in turn reduces installation space, time, and cost. Breaker-based Service Entrance Rated transfer switches are available from 30A to 5000A.

live-tank circuit breaker
live-tank circuit breaker
GL 107X

Primary current: 2,000 A
VAC: 36, 38, 40.5 kV

... -blast principle. This live tank circuit breaker provides a high level of reliability for customers, even under extreme conditions and climates or in highly active seismic areas. The GL 107X live tank ...

See the other products
GE Grid Solutions
motor protection circuit breaker
motor protection circuit breaker
8146/5-V27-501-072-00-11-1

Primary current: 1.6 A - 2.5 A
VAC: 400, 230, 500 V

Product Description: Moulded case circuit breaker for The motor protection Auxiliary contacts: without Release: without Enclosure material: Polyester resin Cable glands and entries: 2 x M25 Ø 7 – ...

under-voltage circuit breaker
under-voltage circuit breaker
GSB2-63

Primary current: 1 A - 63 A

GSB2 series Miniature Circuit Breaker is mainly used in AC 50Hz or 60Hz circuit with rated operational voltage up to AC 415V, with operational current up to 63A. It can be attached ...

See the other products
Tianshui 213 Electrical Apparatus Group CO.,LTD.
hydraulic-magnetic circuit breaker
hydraulic-magnetic circuit breaker
1U series

Primary current: 1 A - 100 A
VAC: 240 V
VDC: 80 V

... technology for improved performance and reliability • World’s first circuit breaker designed for 1U height rack-mount applications • All configurations are ULT 489 listed for branch circuit ...

See the other products
Eaton Count Control Products
SF6 circuit breaker
SF6 circuit breaker
HVS-63S

Primary current: 7,150, 6,900 A
VAC: 24 kV

System type generator circuit-breaker (GCB) with innovative built-in monitoring The HVS-63S GCB with SF6 interrupting technology for short-circuit currents up to 63 kA and rated currents ...

See the other products
Hitachi Energy
short-circuit circuit breaker
short-circuit circuit breaker
HVR-63 series

Primary current: 0 A - 8,000 A
VAC: 24 kV

The latest generation of generator circuit-breaker (GCB) With the new HVR-63 GCB, Hitachi ABB Power Grids continues to lead the way in designing the most advanced GCBs. The HVR-63 is the latest generation ...

See the other products
ABB AG
AC circuit breaker
AC circuit breaker
TemBreak 2

Primary current: 20 A - 1,600 A
VAC: 0 V - 1,100 V
VDC: 900 V

TemBreak 2 is the Ultimate Safety Breaker. It has specifications which exceed international standards for safety. Direct opening action - recommended by IEC standards for machinery safety - is a feature of most models. A ...

See the other products
Terasaki (Europe) Circuit Breaker
current circuit breaker
current circuit breaker
EASYB

Primary current: 1 A - 10 A
VDC: 24 V

The BLOCK electronic circuit breakers are designed for a variety of requirements in machines and devices. Available are three different tripping options. Circuit breakers ...

See the other products
Block Transformatoren-Elektronik
electronic circuit breaker
electronic circuit breaker
REX12-T

Primary current: 1 A - 10 A
VDC: 24 V

... Depending on the requirement, up to 16 circuit protectors can be placed on the symmetrical rail and are electrically connected by means of built-in connector system - no further accessories required. The circuit ...

See the other products
E-T-A
outdoor circuit breaker
outdoor circuit breaker
ZW32-12

Primary current: 630, 1,250 A
VAC: 12 kV

... 12 series outdoor high-voltage AC vacuum circuit breaker is an outdoor pole-mounted switch of vacuum arcing and air insulation. It is featured by small and light, etc., and it mainly consists of circuit ...

See the other products
Hangzhou Huning Elevator Parts Co., Ltd.
thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
PR series

Primary current: 80 A - 125 A
VAC: 230 V - 400 V

Circuit breakers PR121 - PR122 - PR123 - PR124 series 1- to 4-pole circuit breakers, from 80 to 125 A. B and C curves.

vacuum circuit breaker
vacuum circuit breaker
Calix series

Primary current: 0 A - 4,000 A
VAC: 0 kV - 12 kV

The 12KV VCB (CALIX) is designed for rapid auto reclosing duty with SCADA compatible control system. With an optional features like draw-out type PT, Powerpack, and an Integral earth switch, series trip arrangement for ...

See the other products
CG Power Systems
SF6 gas-insulated circuit breaker
SF6 gas-insulated circuit breaker
LW55-363 / Y5000-63

Primary current: 4,000, 5,000 A
VAC: 550, 800, 252, 363 kV

... tightness technology, high design parameters, the whole structure of circuit breaker is compact, with stable and reliable performance and long endurance.   1 The circuit breaker ...

See the other products
Henan ping high electric co., LTD.
pole-mounted circuit breaker
pole-mounted circuit breaker
ZW32-12

Primary current: 630 A
VAC: 7.2 kV - 12 kV

... high voltage switch equipments.Circuit breaker in accord with the national standard GB1984 "high voltage AC circuit breaker" and "professional standards JB3855 3.6 ...

See the other products
Zhuhai Powint Electric Co.,Ltd
SF6 gas-insulated circuit breaker
SF6 gas-insulated circuit breaker
Trans-Rupter II®

... protection. You could either select a higher-cost transformer switch with advanced protection capabilities, like a circuit-switcher or circuit breaker, or you could choose a lower-cost ...

molded case circuit breaker
molded case circuit breaker
TemBreak2

Primary current: 800 A - 1,600 A
VAC: 415 V

TemBreak2 The Ultimate Safety Breaker - Catalogue of products for sale in Japan, Asia and Australia. These next-generation breakers emphasize safety with suitability for isolation and direct opening ...

See the other products
Terasaki Electric Circuit Breaker
vacuum circuit breaker
vacuum circuit breaker
NVL

Primary current: 1,600, 2,500, 2,000 A
VAC: 24, 17.5, 12 kV

Vacuum circuit-breakers are nowadays indispensable Medium Voltage components for the use, restructuring, modernisation and new installation of switchgear.

thermal circuit breaker
thermal circuit breaker
002111512

Primary current: 6 A
VAC: 230 V

Description Miniature circuit breakers series ETIMAT 6 are high quality devices, produced in EU, with following technical characteristics: Rated short-circuit capacity: 6.000 A Number ...

See the other products
ETI
exhibit your products

& reach your clients in one place, all year round

Exhibit with us
DirectIndustry RFQ: Free quotation comparison tool
Receive and compare quotations for free
Describe your project
We select
the best suppliers
Compare quotations and complete your purchase