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Nominal Voltage
Temp (Degrees)
Series
Reset Method
Mounting Style
Amps
Ingress Protection

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 454
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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 #:
    75
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    1
    3.1710
    3.17
    50
    2.7620
    138.10
    100
    2.3940
    239.40
    200
    2.2040
    440.80
    500
    2.1120
    1056.00
    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.
    • 23540 Circuit Breaker Boot
    • Category: Battery Boots
    • 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 #:
    24,253
     
    RoHS Compliant
    REACH Compliant
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    10
    0.5510
    5.51
    50
    0.5300
    26.50
    100
    0.5100
    51.00
    200
    0.4950
    99.00
    500
    0.4800
    240.00
    1000
    0.4620
    462.00
    • 23541 Circuit Breaker Boot
    • Category: Battery Boots
    • 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 #:
    295
     
    RoHS Compliant
    REACH Compliant
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    10
    0.5690
    5.69
    50
    0.5470
    27.35
    100
    0.5260
    52.60
    200
    0.5100
    102.00
    500
    0.4960
    248.00
    1000
    0.4760
    476.00
    Item#:
    46310
    Manufacturer Item:
    121B10-A2M-KA
    Manufacturer:
    Eaton
    Min. Order Qty:
    3
    Avail #:
    9
     
    RoHS Compliant
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    3
    2.3520
    7.06
    50
    2.0480
    102.40
    100
    1.7750
    177.50
    200
    1.6380
    327.60
    500
    1.5660
    783.00
    • 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:
    121B10-A2P-KA
    Manufacturer:
    Eaton
    Min. Order Qty:
    3
    Avail #:
    180
     
    RoHS Compliant
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    3
    2.1320
    6.40
    50
    1.8480
    92.40
    100
    1.6070
    160.70
    200
    1.4830
    296.60
    500
    1.4210
    710.50
    Item#:
    46315
    Manufacturer Item:
    121B15-A2M-KA
    Manufacturer:
    Eaton
    Min. Order Qty:
    3
    Avail #:
    0
     
    RoHS Compliant
    REACH Compliant
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    3
    2.2890
    6.87
    50
    1.9850
    99.25
    100
    1.7330
    173.30
    200
    1.5860
    317.20
    500
    1.5240
    762.00
    Item#:
    46316
    Manufacturer Item:
    121B15-A2P-KA
    Manufacturer:
    Eaton
    Min. Order Qty:
    3
    Avail #:
    470
     
    RoHS Compliant
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    3
    2.1320
    6.40
    50
    1.8480
    92.40
    100
    1.6070
    160.70
    200
    1.4830
    296.60
    500
    1.4210
    710.50
    • 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 #:
    416
     
    RoHS Compliant
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    3
    2.3520
    7.06
    50
    2.0480
    102.40
    100
    1.7750
    177.50
    200
    1.6380
    327.60
    500
    1.5660
    783.00
    Item#:
    46321
    Manufacturer Item:
    121B20-A2P-KA
    Manufacturer:
    Eaton
    Min. Order Qty:
    3
    Avail #:
    661
     
    RoHS Compliant
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    3
    2.1320
    6.40
    50
    1.8480
    92.40
    100
    1.6070
    160.70
    200
    1.4830
    296.60
    500
    1.4210
    710.50
    Item#:
    46325
    Manufacturer Item:
    121B25-A2M-KA
    Manufacturer:
    Eaton
    Min. Order Qty:
    3
    Avail #:
    148
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    3
    2.3520
    7.06
    50
    2.0480
    102.40
    100
    1.7750
    177.50
    200
    1.6380
    327.60
    500
    1.5660
    783.00
    Item#:
    46326
    Manufacturer Item:
    121B25-A2P-KA
    Manufacturer:
    Eaton
    Min. Order Qty:
    3
    Avail #:
    262
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    3
    2.1320
    6.40
    50
    1.8480
    92.40
    100
    1.6070
    160.70
    200
    1.4830
    296.60
    500
    1.4210
    710.50
    • 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 #:
    439
    Price Break for UM: EA

    Qty Piece Price Ext. Price
    3
    2.3520
    7.06
    50
    2.0480
    102.40
    100
    1.7750
    177.50
    200
    1.6380
    327.60
    500
    1.5660
    783.00
    1 - 12 of 454
    View:
    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.