Automotive Circuit Breakers and Electrical Circuit Breakers

Waytek carries thousands of automotive circuit breakers for auxiliary and accessory circuits on trucks, buses, recreational vehicles, marine, and construction equipment. From auto reset circuit breakers to blade type electrical circuit breakers, our selection covers all electrical projects. Waytek has rugged and reliable circuit breakers for exceptional circuit protection performance.

To make a selection on which automotive circuit breaker is best for your application, you must consider where the circuit breaker will be mounted, the current rating you need the electrical breaker to carry, and the type of reset method. There are four electrical circuit breaker types:

  • Type I Automatic Reset, which means the circuit breaker keeps cycling on and off until the overload is removed
  • Type ll Modified Reset or Non Cycling, where the circuit breaker doesn't reset until the overload is removed or powered off
  • Type lll Manual Reset with the trip indication shown on the body of the circuit breaker and it must be manually reset
  • Type lll Switchable, which is similar to Type lll Manual Reset, but the circuit breaker has a manual trip button
  • 1 - 12 of 419
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    Description
    Price
    Quantity
    • EATON's Bussmann Series B156-7003-J Flange Panel Mount Gasket 
    • Category: Circuit Breakers
    • Manufacturer: EATON
    • Component Type: Flange Mount Panel Gasket
    • For Series 18X & 28X EATON's Bussmann panel mount circuit breakers
    Item#:
    23539
    Manufacturer Item:
    B156-7003-J
    Manufacturer:
    EATON
    Min. Order Qty:
    1
    Avail #:
    216
    1+
    2.2500
    500+
    1.8000
    2500+
    1.5750
    EACH
    This red short stop circuit breaker boot insulates your circuit from shorting out by protecting it from the elements in power leads and automotive applications. This particular circuit breaker boot will fit with or without mounting brackets.
    • Type: Short Stop circuit breakers 
    • Color: Red
    • Red boot is typically used for power leads, while yellow boot is for marine applications
    Item#:
    23540
    Min. Order Qty:
    10
    Avail #:
    41,948
     
    RoHS Compliant
    REACH Compliant
    1+
    0.5135
    500+
    0.4364
    2500+
    0.3851
    EACH
    • Circuit breaker boot for short stop circuit breakers
    • Insulates your circuit breakers from shorting out
    • Yellow boot is for marine applications, Red boot is typically used for power leads
    • Fits circuit breakers with or without mounting brackets
    Item#:
    23541
    Min. Order Qty:
    10
    Avail #:
    624
     
    RoHS Compliant
    REACH Compliant
    1+
    0.5268
    500+
    0.4477
    2500+
    0.3951
    EACH
    Item#:
    46310
    Manufacturer Item:
    121B10-A2M-KA
    Manufacturer:
    EATON
    Min. Order Qty:
    3
    Avail #:
    94
     
    RoHS Compliant
    1+
    2.7000
    20+
    2.3000
    100+
    2.0300
    EACH
    • EATON's Bussmann Series 121B10A2P-KA Shortstop Circuit Breaker
    • Category: Circuit Breakers
    • Manufacturer: EATON
    • Series: 12X
    • Type: Shortstop
    • Current Rating: 10A
    • Voltage Rating: 12V
    • Terminals: (2) #10-32 Studs
    • Reset Method: Type I - Automatic
    • Mounting Style: Right Angle Bracket
    • Plastic housing cover
    • Metal housing also available (Cooper Bussmann 121B10-A2M-KA Shortstop Circuit Breaker)
    Item#:
    46311
    Manufacturer Item:
    121B10A2P-KA
    Manufacturer:
    EATON
    Min. Order Qty:
    3
    Avail #:
    227
     
    RoHS Compliant
    1+
    2.1600
    20+
    1.8400
    100+
    1.6200
    EACH
    Item#:
    46315
    Manufacturer Item:
    121B15-A2M-KA
    Manufacturer:
    EATON
    Min. Order Qty:
    3
    Avail #:
    2,921
     
    RoHS Compliant
    REACH Compliant
    1+
    2.2400
    20+
    1.9100
    100+
    1.6800
    EACH
    Item#:
    46316
    Manufacturer Item:
    121B15-A2P-KA
    Manufacturer:
    EATON
    Min. Order Qty:
    3
    Avail #:
    843
     
    RoHS Compliant
    1+
    2.2600
    20+
    1.9200
    100+
    1.7000
    EACH
    • EATON's Bussmann Series 121B20-A2M-KA Shortstop Circuit Breaker
    • Category: Circuit Breakers
    • Manufacturer: EATON
    • Standard Automotive Type 1
    • Metal Housings
    • Automatic Reset circuit breakers
    • 10-32 Stud Terminals
    • Right Angle Bracket w/ Nuts
    • Amps: 20
    Item#:
    46320
    Manufacturer Item:
    121B20-A2M-KA
    Manufacturer:
    EATON
    Min. Order Qty:
    3
    Avail #:
    2,648
     
    RoHS Compliant
    1+
    2.7000
    20+
    2.3000
    100+
    2.0300
    EACH
    Item#:
    46321
    Manufacturer Item:
    121B20-A2P-KA
    Manufacturer:
    EATON
    Min. Order Qty:
    3
    Avail #:
    155
     
    RoHS Compliant
    1+
    2.2600
    20+
    1.9200
    100+
    1.7000
    EACH
    Item#:
    46325
    Manufacturer Item:
    121B25-A2M-KA
    Manufacturer:
    EATON
    Min. Order Qty:
    3
    Avail #:
    39
    1+
    2.7000
    20+
    2.3000
    100+
    2.0300
    EACH
    Item#:
    46326
    Manufacturer Item:
    121B25-A2P-KA
    Manufacturer:
    EATON
    Min. Order Qty:
    3
    Avail #:
    389
    1+
    2.2600
    20+
    1.9200
    100+
    1.7000
    EACH
    • EATON's Bussmann Series 121B30-A2M-KA Shortstop Circuit Breaker
    • Category: Circuit Breakers
    • Manufacturer: EATON
    • Short Stop Circuit Breaker
    • Standard Automotive Type 1
    • 10-32 Stud Terminals
    • Right angle mounting bracket
    • Metal Housings
    • Amps: 30
    Item#:
    46330
    Manufacturer Item:
    121B30-A2M-KA
    Manufacturer:
    EATON
    Min. Order Qty:
    3
    Avail #:
    1,268
    1+
    2.7000
    20+
    2.3000
    100+
    2.0300
    EACH
    1 - 12 of 419
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    Not sure if a circuit breaker is exactly what you’re looking for, Waytek carries hundreds of other circuit protection devices ranging from circuit breaker panels to eliminate power management issues and are essential in managing functionality and power capacity, to Bussmann fuses, to electrical terminals designed to connect your circuit breaker or circuit protection device from damage. Make Waytek your one-stop shop for all of your electrical components.