Three-phase circuit breakers

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Three-phase circuit breakers | Choosing the Right Circuit Breaker
The obvious alternative to a circuit breaker is a fuse, which seemingly offers the advantages of relatively low cost and simplicity. Technical standards will often determine whether you need to use a circuit breaker or a fuse, and although circuit breakers are more expensive and complex, they are advantageous for several reasons. These include:  The condition of a fuse is difficult to estimate and it may degrade over time whereas a circuit breaker can be...
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thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
TeSys GV2

Primary current: 138 A
VAC: 0 V - 690 V
Rating: 10 A

TeSys GV motor circuit breaker, 3 poles (3P), 10A/690V, for 3-phase motor applications 3-4kW@400V. It provides a thermal-magnetic protection with a thermal setting range 6-10A, magnetic ...

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 ...

magnetic circuit breaker
magnetic circuit breaker
MS132-32

Primary current: 32 A
VAC: 600 V
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 ...

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 ...

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.

hydraulic-magnetic circuit breaker
hydraulic-magnetic circuit breaker
LEGA series

Primary current: 1 A - 50 A
VAC: 120, 240, 250, 415 V
VDC: 80 V

Developed to meet the evolving demand for low-profile datacenter rack power distribution units, the Airpax™ LEGA series circuit breaker provides a cost effective solution with uncompromising performance ...

air-operated circuit breaker
air-operated circuit breaker
DZ47

Primary current: 1 A - 63 A
VAC: 400, 230, 415 V
VDC: 10 V - 10 V

... plastics. Mainly used in AC 50/60Hz single-pole 230V or two three four-pole 400V circuit for overload and short circuit protection as well as for on-off switching electric equipment and ...

low-voltage circuit breaker
low-voltage circuit breaker
TANW1

TANW1 intelligent universal low-voltage circuit breaker Category:Components

spring operated circuit breaker
spring operated circuit breaker
LW8-40.5

LW8-40.5 Outdoor AC High Voltage SF6 Circuit Breaker Category:Components

high-voltage circuit breaker
high-voltage circuit breaker
VT19 series

VT19 series high voltage solid-sealed pole vacuum circuit breaker Category:Components

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 ...

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 ...

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 ...

air-operated circuit breaker
air-operated circuit breaker
VAB series

Primary current: 800 A - 4,000 A
VAC: 690 V

... VITZROEM VIDER Air Circuit Breaker is a circuit breaker that passed new IEC standard (IEC60947-2, LV switch equipment and control equipment-circuit breaker) ...

three-phase circuit breaker
three-phase circuit breaker
ZW8-12

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

... mounted circuit breaker is for AC three phase power system (50 Hz, 12 KV). It can break and make the load current, overload current and short circuit ...

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Beijing SOJO Electric Co., Ltd
pole-mounted circuit breaker
pole-mounted circuit breaker
ZW32-12

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

... companies etc. ZW32-12 is applied to three-phase AC 50Hz, rated voltage is 7.2 ~ 12kV of outdoor high voltage switch equipments.Circuit breaker in accord with ...

SF6 gas-insulated circuit breaker
SF6 gas-insulated circuit breaker
LW55B-550/Y6300-63

VAC: 550 kV

LW55-550/Y4000-50 tank type SF6 circuit breaker is the 3-phase AC transmission equipment.Used in the power system of 550KV, can be realized the controlling, measurement and protection. ...

vacuum circuit breaker
vacuum circuit breaker
b series

VAC: 35 kV

... -voltage and the operating over-voltage caused by each vacuum circuit breaker, and the over-voltage relative to ground and phase to phase can cause reliable limiting ...

vacuum circuit breaker
vacuum circuit breaker
ZN63-12~24 series

Primary current: 630 A - 1,600 A
VAC: 24 kV

ZN63-12~24 series vacuum circuit breaker,is the latest developed circuit breaker designed by ZEEN.It can be solid pole structure or insulating bushing structure.It is ...

spring operated circuit breaker
spring operated circuit breaker
NMP2-M32

Primary current: 0.1 A - 80 A
VAC: 0 V - 690 V

NMP2-ME series “anxele” brand motor breaker is used in circuit up to 690V,0.1 A to 32A,and 1A to 80A for protection against overload, loss of phase, short circuit of ...

vacuum circuit breaker
vacuum circuit breaker
VAC83

Primary current: 630 A - 4,000 A
VAC: 12 kV

VAC83 VCB is in a new type indoor switch device, which is mainly used in three-phase AC power system with rated voltage of 12kV, and rated frequency of 50-60Hz. It has the advantages ...

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Wenzhou Vacem Technology Co., Ltd
vacuum circuit breaker
vacuum circuit breaker
ZN85A-40.5

Primary current: 630, 1,250, 1,600, 2,000 A

... frequent operations are required. The breaker conforms to the requirements of the standards of GB1984-1989"High voltage AC breaker",JB/T3855-1996"3.6-40.5KV voltage AC vacuum circuit ...

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Andeli Group Company
thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
MCCB DS1 МАХ

Primary current: 63 A - 800 A
VAC: 230 V - 400 V

TECHNICAL DATA: • Rated operating voltage: 415/690V; 50/60Hz • Isolating voltage: 2000V • Surge voltage wear resistance: ≥8000V • Connecting: rigid or flexible conductors front conductors joining possibility for mounting ...

motor protection circuit breaker
motor protection circuit breaker
FMK 25 series

Primary current: 0.1 A - 32 A
VAC: 220 V - 415 V

air-operated circuit breaker
air-operated circuit breaker
RDW5 series

Primary current: 200 A - 6,300 A
VAC: 380, 400 V

DW5 Air Circuit breaker(ACB), is applied to power distribute network of AC 50Hz/60Hz, rated operate voltage is 400V,690V, rated current up to 6300A, is mainly applied to power distribute, transmission ...

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PEOPLE ELE. APPLIANCE GROUP CO., LTD.
air-operated circuit breaker
air-operated circuit breaker
ABW series

Primary current: 800 A - 6,300 A
VAC: 415 V

... low-voltage electrical circuits. Rated operational currents up to 6300A and high short-circuit breaking capacity. Available with 3 or 4 poles for both versions:fixed or withdrawable Circuit ...

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WEG
thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
EFD3

... external earth screw. RAL 7035 polyester coating. EFD3 series three pole, magnetothermic breakers are used for command (start - stop) and protection of three-phase ...

differential circuit breaker
differential circuit breaker
SUNTEK

Primary current: 25 A

... Large fridge/freezers Whole office Complete circuits House & Warehouse Max power: 25 amps Effects of Loss of Neutral In the event of loss of neutral, the single-phase voltage will rise to the ...

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