Circuit breakers

Do you need help making a decision?  Take a look at our buying guide
133 companies | 676 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...
thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
JB

Primary current: 10,000 A
VDC: 250, 500, 750, 1,000 V
Rating: 1 A - 63 A

DC Circuit Breaker - Miniature Circuit Breakers for DC and Solar Generation The JB is a DC circuit breaker dedicated to multi string ...

thermal circuit breaker
thermal circuit breaker
BRSCB-80

Primary current: 40,000 A
VAC: 230, 400 V

Features: Status indication. MCB specially designed for Surge Arrester. It can cut the leakage current to 3A. Therefore prevent possible fire hazzard caused by degenerated SPD. Special MCB designed to protect the SPD.

MCB circuit breaker
MCB circuit breaker
BRSCB-40

Primary current: 5,000 A
VAC: 230 V - 275 V

Product Features: ● High surge current resistance. ● Low cutting current, less than 3A

vacuum circuit breaker
vacuum circuit breaker
ZW32-12/24

Primary current: 1,250, 630 A
VAC: 12, 24, 36 kV

... Good pollution resistance. Description: ZW32-12/24 model outdoor AC vacuum circuit breaker is used to make and break load current, overload current and short-circuit current in ...

See the other products
zhejiang Pomanique Electric Co.,Ltd
vacuum circuit breaker
vacuum circuit breaker
ZW7

Primary current: 1,250, 1,600, 2,000 A
VAC: 36 kV

... outdoor high-voltage vacuum circuit breaker is a kind of outdoor high-voltage switchgear under three-phase AC 50Hz, 36kv rated voltage and below. It can be used to switch on and off the loading, overloading ...

See the other products
zhejiang Pomanique Electric Co.,Ltd
vacuum circuit breaker
vacuum circuit breaker
ZN85-40.S/T

Primary current: 1,250, 1,600, 2,000, 2,500 A
VAC: 40.5 kV

... voltage indoor vacuum circuit-breaker is used for switchgear KYN61-40.5(Z), it is most new type of power supply and distribution equipment. This product is accordance with GB1984-2003 stand. This series include: Vacuum ...

See the other products
zhejiang Pomanique Electric Co.,Ltd
hydraulic-magnetic circuit breaker
hydraulic-magnetic circuit breaker
B1 series

Primary current: 1 A - 40 A
VAC: 250 V
VDC: 80 V

Circuit Breaker-B1 Series B1 series product is a hydraulic electromagnetic circuit breaker which our company design and develop by adopting international advanced technology.The ...

See the other products
ZHEJIANG BSB ELECTRICAL APPLIANCES CO.,LTD
hydraulic-magnetic circuit breaker
hydraulic-magnetic circuit breaker
B2 series

Primary current: 1 A - 50 A
VAC: 120 V - 250 V
VDC: 65 V - 80 V

Circuit Breaker-B2 B2 series product is a hydraulic electromagnetic circuit breaker which our company design and develop by adopting international advanced technology.The ...

See the other products
ZHEJIANG BSB ELECTRICAL APPLIANCES CO.,LTD
hydraulic-magnetic circuit breaker
hydraulic-magnetic circuit breaker
B3 series

Primary current: 1 A - 100 A
VAC: 480, 277 V
VDC: 80 V

Circuit breaker – B3 B3 series product is a hydraulic electromagnetic circuit breaker which our company design and develop by adopting international advanced technology.The ...

See the other products
ZHEJIANG BSB ELECTRICAL APPLIANCES CO.,LTD
air-operated circuit breaker
air-operated circuit breaker
GYW1

VAC: 660, 690 V

... the mark The circuit breaker complies with the requirements of the standards GB140482″Low voltage switchgear and controlgear-Part2:Low voltage circuitbreakers and ...

See the other products
Zhejiang Geya Electrical Co., Ltd
vacuum circuit breaker
vacuum circuit breaker
V12-630-20 KUF

Primary current: 630 A
VAC: 12 kV

The switches are designed for normal operating conditions acc. to EN 62271¬1, Class "Minus 5 Indoor”. A proper functioning is also guaranteed up to temperatures of up to ¬15°C. The maximum value of the ambient temperature is 40°C; the ...

thermal-magnetic circuit breaker
thermal-magnetic circuit breaker

VAC: 230 V
Rating: 2 A - 32 A

See the other products
DIGITAL ELECTRIC
thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
MTZ‐D234 series

Primary current: 2 A - 125 A
VAC: 12 V - 400 V
Rating: 1 A - 63 A

See the other products
DIGITAL ELECTRIC
residual current circuit breaker
residual current circuit breaker
JVS16-C

Primary current: 15,000, 20,000 A
VAC: 320 V

See the other products
DIGITAL ELECTRIC
spring operated circuit breaker
spring operated circuit breaker
B1H1B0.5

Primary current: 0.5 A
VAC: 277, 480 V

... the toggle in ON or OFF position Typical Applications - Branch Circuit Protection • Convenience receptacle circuits (internal/external) • Motor control circuits • Load circuits ...

differential circuit breaker
differential circuit breaker
DFS 4 025-2/0,03-EV

Primary current: 25 A
VAC: 230 V

Residual current circuit-breakers (RCCBs) are components for implementing protective measure "Automatic switch-off of power supply" as per VDE 0100 part 410 or corresponding international installation ...

See the other products
Doepke Schaltgeräte GmbH
vacuum circuit breaker
vacuum circuit breaker

Primary current: 630 A - 2,000 A
VAC: 15 kV

The Hawker Siddeley Switchgear Ltd offers local original equipment manufacturers (OEM's) and panel builders the opportunity to manufacture the switchgear solutions under license whilst meeting the stringent design and quality standards. ...

digital circuit breaker
digital circuit breaker
CAPAROC PM PN

Primary current: 15, 40, 45 A
VDC: 10 V - 30 V

Power module with PROFINET interface for supplying the CAPAROC circuit breaker system with 12 or 24 V DC. Additional system interface for communication with the power supply. For DIN rail installation ...

thermal circuit breaker
thermal circuit breaker
TCP 10/16A

Primary current: 16 A
VAC: 250 V
VDC: 72 V

Thermal miniature circuit breaker, can be plugged into PT 10-FSI/C Push-in fuse terminal block. Type - Male Product type - Thermal device circuit breakers Number ...

hydraulic-magnetic circuit breaker
hydraulic-magnetic circuit breaker
A series

Primary current: 0.02 A - 50 A
VAC: 125 V - 277 V
VDC: 80 V

... harsh environment applications. Adding to the breaker’s safety features are options for the exclusive Rockerguard and/or push-to-reset bezels for rocker actuated configurations.  This up to 50 amp breaker ...

See the other products
Carling Technologies
thermal circuit breaker
thermal circuit breaker

Primary current: 5 A - 150 A
VDC: 12 V - 48 V

... Breakers (low profile) Manual Reset ATC Circuit Breakers Series 22X Circuit Breakers Auto, modified and manual reset ATC circuit breakers. Series ...

vacuum circuit breaker
vacuum circuit breaker
CKVB

Primary current: 4,000 A
VAC: 12 kV

... up to 4000A. The circuit breaker conforms to GB 1984-2014 "High Voltage AC Circuit Breaker", JB/T 3855-2008 "3.6~40.5kV Indoor AC High Voltage Vacuum Circuit ...

vacuum circuit breaker
vacuum circuit breaker
CKWB-12

VAC: 12 kV

CKWB-12/T630-20 outdoor AC high voltage vacuum circuit breaker is an outdoor power distribution equipment with vacuum bubble arc extinguishing SF6 gas insulation, rated voltage 12kV, three-phase AC 50Hz. ...

vacuum circuit breaker
vacuum circuit breaker
CKWZ-12

VAC: 12 kV

CKWZ-12 outdoor AC high voltage vacuum circuit breaker is a new generation of outdoor vacuum circuit breaker self-developed on the basis of fully absorbing the advanced ...

SF6 circuit breaker
SF6 circuit breaker
LW28 (A)

Primary current: 4,000, 5,000 A
VAC: 550 kV

See the other products
Siyuan Electric Co., Ltd
vacuum circuit breaker
vacuum circuit breaker

Primary current: 2,500 A
VAC: 40.5 V

Live Tank Vacuum Circuit breakers (40.5 kV) Without CT or with integrated CT(Inside or outside installation) ZW39 is a combined apparatus including an vacuum circuit breaker,The ...

See the other products
Siyuan Electric Co., Ltd
SF6 circuit breaker
SF6 circuit breaker
LW36

Primary current: 4,000 A
VAC: 40.5 kV

... integrated CT(Inside or outside installation) LW36 is a combined apparatus including an SF6 circuit breaker with self-blast arc extinction technology. The circuit breakers ...

See the other products
Siyuan Electric Co., Ltd
thermal circuit breaker
thermal circuit breaker
BTDIN

Primary current: 0.5 A - 125 A
VAC: 230 V - 500 V
VDC: 12 V - 230 V

... offer consists of: circuit breakers, residual current devices and modules, electrical components (motor operators, contacts and releases). Salvavita earth-leakage circuit breakers Protection ...

thermal-magnetic circuit breaker
thermal-magnetic circuit breaker

VDC: 600 V - 800 V

Thermal magnetic circuit breakers 600-800 Vdc circuit breakers for photovoltaic systems. Can be fitted with Btdin contacts and shunt trips

thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
Megatiker

Primary current: 16 A - 160 A
VAC: 220 V - 690 V
VDC: 28 V - 230 V

... Megatiker circuit breakers are the most suitable solution for protection against short circuit and overload in medium and high-power systems of the service and industrial sector. Available ...

thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
EB-2724-010-0

Primary current: 1 A
VDC: 24 V

... 3 (emitted interference) CE: Acc. to 2014/30/EU Approvals UL 508, UL 2367, DNV GL Applications Electronic circuit breaker with thermomagnetic characteristic with alarm signal forwarded for ...

thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
4 173 10

Primary current: 6 A - 10 A
VAC: 220 V - 690 V
Rating: 130 A

hydraulic-magnetic circuit breaker
hydraulic-magnetic circuit breaker
GR series

Primary current: 0.2 A - 63 A
VAC: 440 V
VDC: 110 V

... require circuit protection devices featuring very fast overload sensing and opening capabilities. Designed for those applications requiring higher amperage and voltagehandling capability in a compact design. The GR-series ...

hydraulic-magnetic circuit breaker
hydraulic-magnetic circuit breaker
FR

Primary current: 100 A - 700 A
VAC: 277 V
VDC: 138 V

... These components require circuit protection devices featuring very fast overload sensing and opening capabilities. The FR circuit breaker can be used in all Railway applications where ...

vacuum circuit breaker
vacuum circuit breaker
ISM/TEL-12-20/1000-XXX

Primary current: 0 A - 1,000 A
VAC: 12 kV

ISM/TEL-12-20/1000-XXX Rated voltage, kV: 12 Rated current, A: < 1000 Rated short circuit breaking current, kA: < 20 Rated short time withstand current 4s, kA: < 20 Rated frequency, Hz: 50/60 Pole center distance, ...

See the other products
TAVRIDA ELECTRIC
vacuum circuit breaker
vacuum circuit breaker
ISM/TEL-24-16/800-XXX

Primary current: 800 A
VAC: 24 V

ISM/TEL-24-16/800-XXX Rated voltage, kV: 24 Rated current, A: < 800 Rated short-circuit breaking current, kA: < 16 Rated short-time withstand current 4s, kA: < 16 Rated frequency, Hz: 50/60 Pole center distance, ...

See the other products
TAVRIDA ELECTRIC
medium-voltage circuit breaker
medium-voltage circuit breaker

Withdrawable Circuit Breaker (ISMD) The ISMD is the withdrawable version of our ISM. It is ready to use in a wide range of draw-out type switchgear and covers the ratings and pole center distances of our ISM.

See the other products
TAVRIDA ELECTRIC
distribution circuit breaker
distribution circuit breaker
EQUES®CrossBoard

Primary current: 160 A

EQUES®CrossBoard. circuit breakers up to 160 A mounted on the CrossBoard®. Adapter, 90 mm wide, to accept circuit breakers of different manufacturers. This combination ...

See the other products
Wöhner
modular circuit breaker
modular circuit breaker
MKS1 series

MKS1-KES Box for MKS1 model motor circuit breakers Signal option Emergency stop button option

See the other products
EMAS
molded case circuit breaker
molded case circuit breaker

Primary current: 25 A - 1,600 A
VAC: 750 V

Moulded Case Circuit Breakers are produced according to IEC /EN 60947-2 and CE standards and used for protecting the circuits which have different characteristics like cable, motors, ...

See the other products
SIGMA ELEKTRIK
thermal circuit breaker
thermal circuit breaker

Primary current: 2,500 A - 100,000 A

... fuse-free circuit breaker (and power-leakage circuit breaker) (50-1600AF/2.5kA-100kA), offering basic electricity protection for commercial or industrial power-distribution ...

See the other products
TECO ELECTRIC & MACHINERY Co., Ltd.
AC circuit breaker
AC circuit breaker
TO Series E type, 400V up to 15kA

Primary current: 15 A - 800 A
VAC: 230 V - 500 V
VDC: 125 V - 250 V

Regarding IEC standard for handle? ON/OFF indication, our products from 600A and above Frame Sizes have been marked base color as red for ON and green for OFF. After tripping, our handle position is in the middle and showes half red and ...

See the other products
TECO ELECTRIC & MACHINERY Co., Ltd.
thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
TO Series S type, 400V 25~42kA

Primary current: 15 A - 800 A
VAC: 230 V - 500 V
VDC: 125 V - 250 V

‧Regarding IEC standard for handles ON/OFF indication, our products from 400A and above Frame Sizes have been marked base color as red for ON and green for OFF. After tripping, our handle position is in the middle and showes half red ...

See the other products
TECO ELECTRIC & MACHINERY Co., Ltd.
vacuum circuit breaker
vacuum circuit breaker
WB series

Primary current: 400 A - 3,150 A
VAC: 0.03 kV
VDC: 110, 220, 24, 48 V

... power plants, chemical/steel plants and construction facilities. It is a new-conceptual circuit breaker with short arc time and interruption time due to short-circuits and ground failure, ...

See the other products
VitzroEM Co., Ltd.
vacuum circuit breaker
vacuum circuit breaker
KVA series

Primary current: 1,250, 3,150, 1,200, 2,000 A
VAC: 36, 38, 12, 28.5 kV
VDC: 110, 220, 24, 48 V

... power plants, chemical/steel plants and construction facilities. It is a new-conceptual circuit breaker with short arc time and interruption time due to short-circuits and ground failure, ...

See the other products
VitzroEM Co., Ltd.
vacuum circuit breaker
vacuum circuit breaker
KVAX series

Primary current: 600, 1,200, 2,000 A
VAC: 28.5 kV
VDC: 24, 125 V

... power plants, chemical/steel plants and construction facilities. It is a new-conceptual circuit breaker with short arc time and interruption time due to short-circuits and ground failure, ...

See the other products
VitzroEM Co., Ltd.
exhibit your products

& reach your clients in one place, all year round

Exhibit with us