Three-phase circuit breakers

Do you need help making a decision?  Take a look at our buying guide
30 companies | 56 products
exhibit your products

& reach your clients in one place, all year round

Exhibit with us
Search
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 regularly...
{{#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 product.productTagAssociationList}}
{{/each}}
{{/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 product.productTagAssociationList}}
{{/each}}
{{/each}} {{/pushedProductsPlacement5.length}}
thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
TeSys GV4

Primary current: 2 A - 115 A
VAC: 400 V - 690 V
Rating: 2 A - 115 A

... during short circuits • Ergonomic rotary handle for easy switching and controlling with clear trip indication. Other options include: - Toggle - Side - Extended • Available in three different versions: • Type L: ...

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 tripping at 13xIn, ...

thermal circuit breaker
thermal circuit breaker
140MP series

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 tested in combination ...

hydraulic-magnetic circuit breaker
hydraulic-magnetic circuit breaker
LEGA

Primary current: 1 A - 50 A
VAC: 250, 240, 415, 120 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 and reliability ...

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 ...

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 reclosing of the ...

molded case circuit breaker
molded case circuit breaker
MAD series

Primary current: 63 A - 250 A
VAC: 80 V - 270 V

... molded circuit breaker, the MAD range offers unique advantages in terms of installation simplicity, reduction of components, and maintenance risks: - Measurements: The unit allows complete analysis of an electrical circuit ...

AC circuit breaker
AC circuit breaker
MAD series

Primary current: 63 A - 250 A
VAC: 80 V - 270 V
Rating: 63, 125, 160, 250 A

... Summary
All-in-one metering solution integrated under molded-case circuit breakers, MAD series. Enclosure connects directly to the three- phase output terminals of the breaker; ...

thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
MAD-630A1-DIR

Primary current: 400 A - 630 A
VAC: 80 V - 270 V

... directly to the output terminals of the 3 phases of the molded circuit breaker. It acts as an extension of the breaker. The unit's dimensions allow perfect compatibility with the main ...

SF6 gas-insulated circuit breaker
SF6 gas-insulated circuit breaker
LW25

Primary current: 3,150 A - 4,000 A
VAC: 40.5 kV - 363 kV

... • IEC 62271, ANSI/IEEE Std C37, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • ...

See the other products
Dowei Electric
dead-tank circuit breaker
dead-tank circuit breaker
LW24

Primary current: 3,150 A - 4,000 A
VAC: 40.5 kV - 363 kV

... • IEC 62271, ANSI C37.04, C37.06, C37.09 • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • ...

See the other products
Dowei Electric
vacuum circuit breaker
vacuum circuit breaker
ACR

Primary current: 630 A - 800 A
VAC: 15 kV - 38 kV
Rating: 12.5 A - 20 A

... • IEC 62271, ANSI/IEEE Std C37.60, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • ...

See the other products
Dowei Electric
thermal circuit breaker
thermal circuit breaker
11001

Primary current: 0.25 A - 0.4 A
VAC: 690 V

See the other products
DIGITAL ELECTRIC
thermal circuit breaker
thermal circuit breaker
11002

Primary current: 1 A - 1.6 A
VAC: 690 V

See the other products
DIGITAL ELECTRIC
thermal circuit breaker
thermal circuit breaker
11004

Primary current: 1.6 A - 2.5 A
VAC: 690 V

See the other products
DIGITAL ELECTRIC
thermal circuit breaker
thermal circuit breaker
BRSCB-40 series

Primary current: 20,000, 40,000 A
VAC: 500 V

... MCB specially designed for Surge Arrester. It can cut the leakage current to 3A The color of the visual alarm window indicates the working status of the protection, green (normal) and red (fault). Flame-retardant housing design for easy installation ...

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. ...

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. It is composed ...

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 the national standard ...

vacuum circuit breaker
vacuum circuit breaker
VJY1

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

... Overview The VJY1 indoor AC vacuum circuit breaker (Here in after referred to as breaker) is a three- phase AC 50Hz 12KV indoor switchgear, which is available for the ...

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 ...

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 effect. The three- phase ...

motor protection circuit breaker
motor protection circuit breaker
FMK 25 series

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

vacuum circuit breaker
vacuum circuit breaker

Primary current: 800 A
VAC: 12, 24 kV

... Rated short- circuit breaking current - ≤ 20 kA Rated short-time withstand current 4s - ≤ 20 kA Rated frequency - 50/60 Hz Mechanical endurance - 50 000 CO cycles Temperature range - -40...+55 °C Weight - 36 kg ...

See the other products
TAVRIDA ELECTRIC NORTH AMERICA
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) ...

motor protection circuit breaker
motor protection circuit breaker
C4/32R-0,16

VAC: 690 V
Rating: 0.1 A - 0.2 A

... Effective protection of 3- phase motors against overcurrents and short circuits while minimising false tripping is a challenging application. IMO's C4 range of Motor Circuit Breakers are ...

thermal-magnetic circuit breaker
thermal-magnetic circuit breaker
EFD3 series

Primary current: 0.25 A - 25 A

... EFD3 series three pole, magnetothermic breakers are used for command (start - stop) and protection of three- phase motors. Circuit breaker with adjustable ...

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 Breaker", ...

See the other products
Zhuhai Comking Electric Co.,Ltd.
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 an indoor switchgear ...

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 3- phase ...

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 of compact structure, ...

See the other products
Wenzhou Vacem Technology Co., Ltd
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