Circuit breakers

117 companies | 633 products
exhibit your products

& reach your clients in one place, all year round

Exhibit with us
{{#pushedProductsPlacement4.length}} {{#each pushedProductsPlacement4}}
{{product.productLabel}}

{{product.productLabel}} {{product.model}}

{{#if product.featureValues}}
{{#each product.featureValues}} {{content}} {{/each}}
{{/if}}
{{#if product.productPrice }} {{#if product.productPrice.price }}

{{product.productPrice.formattedPrice}} {{#if product.productPrice.priceType === "PRICE_RANGE" }} - {{product.productPrice.formattedPriceMax}} {{/if}}
{{/if}} {{/if}}
{{#if product.activeRequestButton}}
{{/if}}
{{product.productLabel}}
{{product.model}}

{{#each product.specData:i}} {{name}}: {{value}} {{#i!=(product.specData.length-1)}}
{{/end}} {{/each}}

{{{product.idpText}}}

{{productPushLabel}}
{{#if product.newProduct}}
{{/if}} {{#if product.hasVideo}}
{{/if}}
{{/each}} {{/pushedProductsPlacement4.length}}
{{#pushedProductsPlacement5.length}} {{#each pushedProductsPlacement5}}
{{product.productLabel}}

{{product.productLabel}} {{product.model}}

{{#if product.featureValues}}
{{#each product.featureValues}} {{content}} {{/each}}
{{/if}}
{{#if product.productPrice }} {{#if product.productPrice.price }}

{{product.productPrice.formattedPrice}} {{#if product.productPrice.priceType === "PRICE_RANGE" }} - {{product.productPrice.formattedPriceMax}} {{/if}}
{{/if}} {{/if}}
{{#if product.activeRequestButton}}
{{/if}}
{{product.productLabel}}
{{product.model}}

{{#each product.specData:i}} {{name}}: {{value}} {{#i!=(product.specData.length-1)}}
{{/end}} {{/each}}

{{{product.idpText}}}

{{productPushLabel}}
{{#if product.newProduct}}
{{/if}} {{#if product.hasVideo}}
{{/if}}
{{/each}} {{/pushedProductsPlacement5.length}}
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
thermal circuit breaker
thermal circuit breaker
CTI 15

Primary current: 20 A - 25 A

... protect Max. load, AC-3 [kW] 12.5 kW Packing format Multi pack Product description Circuit Breaker Product group Contactors and motor starters Product name Circuit breaker Quantity ...

See the other products
Danfoss Industrial Automation
thermal circuit breaker
thermal circuit breaker
140MP

Primary current: 0.1 A - 32 A
VAC: 600, 690 V

Bulletin 140MP Motor Protection Circuit Breakers (MPCBs) or Motor Protective Switching Devices (MPSD) provide magnetic short circuit and thermal overload protection up to 32 A. They are ...

See the other products
Allen-Bradley
single-pole circuit breaker
single-pole circuit breaker
MS3320 series

Primary current: 0.5 A - 30 A

Circuit Breaker, MS3320L, Push-Pull, Single Pole, Small Model, No Signal Contact,High Vibration, 4A ASD-STAN - :EN2495 | EN2995 | EN3773 DIN-BUNDESWEHR: VG95345-TEIL6 VG95345-TEIL11 BACC ALTERNATE: BACC18AD

See the other products
Crouzet
magnetic circuit breaker
magnetic circuit breaker
MS132-32

Primary current: 32 A
VDC: 400 V

... protect them reliably and without the need for a fuse from short-circuits, overload and phase failures. The manual motor starter offers a rated service short-circuit breaking capacity Ics ...

See the other products
ABB
magnetic circuit breaker
magnetic circuit breaker
(MCCB) NF

... including "F-style" small size breakers, with improved usability. The molded case circuit breaker (MCCB) opens and closes a low voltage circuit, and breaks the fault ...

magnetic circuit breaker
magnetic circuit breaker
(ACB) AE-SW

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

thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
BHW-T10 (DIN-Series)

Primary current: 0.5 A - 100 A
VAC: 240 V - 415 V

... replacement of miniature circuit breakers on the DIN rail. All terminals are Bi-Connect for ultimate flexibility. Deep serrated terminals provide the mounting of cables up to 35 mm² cross-section. The ...

motor protection circuit breaker
motor protection circuit breaker
PKE series

Primary current: 32 A - 65 A
VAC: 400 V

PKE motor-protective circuit-breakers with electronic wide-range overload protection offer an interesting alternative to the bimetal solution for motor currents up to 65 A. PKE motor-protective circuit-breakers ...

See the other products
Eaton
voltage circuit breaker
voltage circuit breaker
SB6100 series

Primary current: 10 mA - 100 mA
VAC: 600 V

Special-Purpose Ground-Fault Circuit Interrupter (GFCI), Class C and Class D Industrial Shock Block (ISB) is a personnel protection device designed to meet the requirements for special-purpose GFCIs defined by UL 943C. ...

overload circuit breaker
overload circuit breaker
CTI 15

Primary current: 0.25 A - 16 A

Used for product: Motors, Function: Overload and short-c. protect, Breaking cap. Ics, 380-415 V: 50, Max. load, AC-3 [kW]: 0.75

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 ...

short-circuit circuit breaker
short-circuit circuit breaker
GSM8-3232

Primary current: 32 A
VAC: 415 V

1 General GSM8-32 series Circuit Breakers for Motor Protection is used in the circuit of 50Hz/60Hz with rated voltage up to AC 415V and rated current up to 32A, for the purpose ...

thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
1489 series

Primary current: 0.5 A - 63 A
VAC: 480, 240, 277 V

... Application Information Circuit Voltage The Bulletin 1489-M circuit breakers are rated by voltage class.Applications should not exceed the listed voltage and current range. Circuit ...

See the other products
Allen Bradley
differential circuit breaker
differential circuit breaker
NG125

Primary current: 10 A - 125 A

Main - Product or component type - Add-on residual current devices Device short name Pôles description - Vigi NG125 4P [In] rated current - 63 A Network type - AC Earth-leakage sensitivity - 30 mA Earth-leakage protection time ...

See the other products
Schneider Electric - Electrical Distribution
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
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.

air-operated circuit breaker
air-operated circuit breaker

Primary current: 1,000 A - 6,000 A
VAC: 690 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 ELECTRIC AUTOMATION
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 ...

See the other products
PHOENIX CONTACT Cyber Security AG
rocker switch type circuit breaker
rocker switch type circuit breaker
AD series

Primary current: 1 A - 50 A

Circuit breakers are the ‘safety stop’ signs of your onboard electrical system, they secure the electrical circuit against overload or short circuits. For equipment that ...

residual current circuit breaker
residual current circuit breaker
RD series

Primary current: 0.03 A - 1 A
VAC: 110 V - 400 V

Modular residual current relays RD21 series Modular residual current relay. RD23 series Modular residual current relay with leakage current indicator.

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

vacuum circuit breaker
vacuum circuit breaker
CVB 25/08 series

Primary current: 800 A
VAC: 25 kV

Switchgear for traction – AC vacuum circuit breaker The CVB Series vacuum circuit breaker is the main electrical switch and protection device of AC locomotives and ...

vacuum circuit breaker
vacuum circuit breaker
CVB 15/08 series

Primary current: 800 A
VAC: 15 kV

... applied, chances are the vacuum circuit breaker turns off and the springs maintains its charged and ready-to-be used switching operation or technique. There is no need for a secondary energy supply for ...

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-magnetic circuit breaker
thermal-magnetic circuit breaker
RECmaxMP series

VAC: 240, 415 V
Rating: 6 A - 63 A

... RECmax MP series are motorized circuit breakers that can be linked remotely.They function as protection against shortcircuit and overload, and can also be used as a circuit breaker. ...

differential circuit breaker
differential circuit breaker
RECmaxLPD series

Primary current: 6 A - 63 A
VAC: 240, 415 V

... device with circuit breaker and ultra-immunized earth leakage protection. Programmable unit with display, which measures leakage currents (earth leakage protection), and orders the disconnection or ...

overload circuit breaker
overload circuit breaker
MT series

Primary current: 6 A - 63 A
VAC: 240, 415 V

The motorized circuit breakers of the MT Series can be associated remotely. They protect against short-circuits and overloads, but are also used as a circuit breaker. ...

magnetic circuit breaker
magnetic circuit breaker
SM1 series

Primary current: 9 A - 32 A

... 32A. A magnetic trip indicator integrated on the SM1 breakers avoids dangerous closing operations during short-circuit conditions, previously disconnected by the breaker. The SM1 types ...

See the other products
LOVATO ELECTRIC
overcurrent circuit breaker
overcurrent circuit breaker
15TC Series

Primary current: 20 A - 50 A

... 15TC series circuit breaker was designed to meet the package size and performance requirements of inactive military standard MS90351 in the 20 to 50 amp range. This lightweight, high performance, non-ambient ...

See the other products
Sensata Technologies
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
power circuit breaker
power circuit breaker
MTX series

Primary current: 160 A - 1,600 A

These circuit breakers for power distribution are available in different configurations to enable safety component incorporation for various circuits. These models are encased in cases ...

See the other products
GEWISS
exhibit your products

& reach your clients in one place, all year round

Exhibit with us
How to choose this product
circuit-breaker

A circuit breaker is an electrical protection device that cuts power to an electrical cable in case of overvoltage, short circuit or if the circuit presents an isolation defect.

Applications

Circuit breakers are used in industrial facilities to protect circuits and electrical machinery.

Technologies

Thermal circuit-breakers use a bimetallic strip that expands and opens the circuit in the presence of excessive currents. It protects conductors from prolonged over amperage and fire-risks. Magnetic circuit-breakers use a coil, as in relays. They can open the circuit immediately or after pre-set delays (e.g. for motor-starting). Thermal magnetic circuit-breakers combine these two systems. High-end electronic circuit-breakers can be adjusted for extremely precise activation.

Differential circuit-breakers protect against ground leakage. In case of isolation defects, the sum of the phase currents is not equal to the current circulating in the neutral. A magnetic circuit uses this difference to trigger the device. Circuit-breakers interrupt power to electrical supply lines. High-voltage circuit-breakers use gas, oil or compressed air to increase their ability to cut power and extinguish electrical arcs.

How to choose

The main parameters are the rated current (In), well under the trip level (Icu or Icn), beyond which the circuit's integrity is at risk, and the device's class.