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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1 2345...
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(Ex. GST)(▲▼)		Enter Qty SeriesProductTypeCurrent RatingVoltage Rating ACVoltage Rating DCNumber of PolesActuator TypeMinimum Operating TemperatureMaximum Operating TemperatureIlluminatedPackaging
  
                
30172-15


Circuit Breakers CIR_BRKR 15A 24V MEL BRK HWD
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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 76
Ships to you
between Tue. 21 May to Thu. 23 May Calender.png

USD 8.6885
Multiples of: 1

 Circuit BreakersBox Style Circuit Breaker15 A 24 VDC    Not IlluminatedBulk
30055-25


Circuit Breakers CIR BRKR 25A 12V MET BRK HWD
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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 69
Ships to you
between Tue. 21 May to Thu. 23 May Calender.png

USD 10.4932
Multiples of: 1

 Circuit BreakersBox Style Circuit Breaker25 A 12 VDC    Not IlluminatedBulk
30055-10


Circuit Breakers CIRCUIT BREAKER 10A 12V MET B
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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 68
Ships to you
between Tue. 21 May to Thu. 23 May Calender.png

USD 10.2816
Multiples of: 1

 Circuit BreakersBox Style Circuit Breaker10 A 12 VDC    Not IlluminatedBulk
30128-15


Circuit Breakers CIR BRKR 15A 12V MET BRK HWD
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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 68
Ships to you
between Tue. 21 May to Thu. 23 May Calender.png

USD 11.3854
Multiples of: 1

 Circuit BreakersBox Style Circuit Breaker15 A 12 VDC    Not IlluminatedBulk
30056-30


Circuit Breakers CIR BRKR30A12VMETHWD
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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 64
Ships to you
between Tue. 21 May to Thu. 23 May Calender.png

USD 9.8461
Multiples of: 1

 Circuit BreakersBox Style Circuit Breaker30 A 12 VDC    Not IlluminatedBulk
30171-15


Circuit Breakers CIR_BRKR 15A 24V MEL HWD
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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 60
Ships to you
between Tue. 21 May to Thu. 23 May Calender.png

USD 10.7876
Multiples of: 1

 Circuit BreakersBox Style Circuit Breaker15 A 24 VDC     Bulk
30055-40


Circuit Breakers CIR BRKR40A12VMETBRKHWD
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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 59
Ships to you
between Tue. 21 May to Thu. 23 May Calender.png

USD 9.808
Multiples of: 1

 Stud Type Circuit BreakersBox Style Circuit Breakers40 A  2 Pole   Not IlluminatedBulk
30418-25


Circuit Breakers "ATM_BRKR TYPE 1, 25A"
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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 56
Ships to you
between Tue. 21 May to Thu. 23 May Calender.png

USD 8.5302
Multiples of: 1

30418 MINI Circuit BreakersCircuit BreakersAuto Reset25 A 12 VDC1 Pole - 40 C+ 125 CNot IlluminatedBulk
30418-20


Circuit Breakers "ATM_BRKR TYPE 1, 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 53
Ships to you
between Tue. 21 May to Thu. 23 May Calender.png

USD 8.5302
Multiples of: 1

30418 MINI Circuit BreakersCircuit BreakersAuto Reset20 A 12 VDC1 Pole - 40 C+ 125 CNot IlluminatedBulk
30418-10


Circuit Breakers ATM_BRKR TYPE 1
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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 49
Ships to you
between Tue. 21 May to Thu. 23 May Calender.png

USD 7.1875
Multiples of: 1

30418 MINI Circuit BreakersCircuit BreakersAuto Reset10 A 12 VDC1 Pole - 40 C+ 125 CNot IlluminatedBulk
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