About Circuit Breakers

Littelfuse Circuit Breakers

A circuit breaker is a device designed to protect an electrical circuit from damage from overheating, overloading, or short circuiting. It acts like an invisible switch that automatically opens up or turns off the flow of electricity when the circuit is overloaded or the load has reached a certain level. This prevents electrical components in the circuit from being damaged or even bursting into flames. Circuit breakers are typically used in circuit protection applications and are found in most households and all businesses. Circuit breakers come in different sizes, ratings and types depending on the application. They can be manually reset or may also be self resetting, meaning that when the fault has been cleared, the circuit breaker will automatically reset itself and resume normal operation. Circuit breakers have become a standard part of electrical wiring, and are used in industrial, commercial and residential settings.

Circuit Breakers

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Image  Information Image Stock Code(▲▼)Description
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(Ex. GST)(▲▼)		Enter Qty SeriesProductTypeCurrent RatingVoltage Rating ACVoltage Rating DCNumber of PolesActuator TypeMinimum Operating TemperatureMaximum Operating TemperatureIlluminatedPackaging
  
                
HCBY3P45GG850


Circuit Breakers 120/240V 45A 3P CIRCUIT BREAKER, LUGS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 19
Ship by Wed. 12 Jun to Fri. 14 Jun Calender.png

USD 191.544
Multiples of: 1

HCB  45 A120 VAC , 240 VAC 3 Pole    Bulk
HCBY3P45GA850


Circuit Breakers 120/240V 45A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 19
Ship by Wed. 12 Jun to Fri. 14 Jun Calender.png

USD 191.544
Multiples of: 1

HCB  45 A120 VAC , 240 VAC 3 Pole    Bulk
HCBY3P10GG850


Circuit Breakers 120/240V 10A 3P CIRCUIT BREAKER, LUGS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 19
Ship by Wed. 12 Jun to Fri. 14 Jun Calender.png

USD 191.544
Multiples of: 1

HCB  10 A120 VAC , 240 VAC 3 Pole    Bulk
HCBY3P20GA850


Circuit Breakers 120/240V 20A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 19
Ship by Wed. 12 Jun to Fri. 14 Jun Calender.png

USD 191.544
Multiples of: 1

HCB  20 A120 VAC , 240 VAC 3 Pole    Bulk
HCBY3P30GA850


Circuit Breakers 120/240V 30A 3P CIRCUIT BREAKER, LUGS/QUICK CONNECT
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 19
Ship by Wed. 12 Jun to Fri. 14 Jun Calender.png

USD 191.544
Multiples of: 1

HCB  30 A120 VAC , 240 VAC 3 Pole    Bulk
HCBY3P30GG850


Circuit Breakers 120/240V 30A 3P CIRCUIT BREAKER, LUGS
Icon ROHS
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 19
Ship by Wed. 12 Jun to Fri. 14 Jun Calender.png

USD 191.544
Multiples of: 1

HCB  30 A120 VAC , 240 VAC 3 Pole    Bulk
HCBY2P30GG850


Circuit Breakers 120/240V 30A 2P CIRCUIT BREAKER, LUGS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 14
Ship by Wed. 12 Jun to Fri. 14 Jun Calender.png

USD 60.744
Multiples of: 1

HCB  30 A120 VAC , 240 VAC 2 Pole    Bulk
0185080.X


Circuit Breakers 80A High Amp Type III
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 10
Ship by Wed. 12 Jun to Fri. 14 Jun Calender.png

USD 56.4637
Multiples of: 1

185Circuit BreakersHigh Amp80 A 12 VDC1 Pole - 40 C+ 105 CNot IlluminatedBulk
0ACB020.X


Circuit Breakers 20A
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 9
Ship by Thu. 06 Jun to Wed. 12 Jun Calender.png

USD 2.5199
Multiples of: 1

JcasCartridge Box FuseJcase Cartridge Fuse20 A 32 VDC     Bulk
30056-10


Circuit Breakers CIR BRKR10A12VMETHWD
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 9
Ship by Wed. 12 Jun to Fri. 14 Jun Calender.png

USD 8.9077
Multiples of: 1

 Circuit BreakersBox Style Circuit Breaker10 A 12 VDC    Not IlluminatedBulk
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