Circuit Breakers & Circuit Breaker Parts

Wistex offers a wide selection of industrial circuit breakers designed to protect your equipment from overloads and short circuits. With trusted brands like ABB and expert customer support, we help you find the right solution for your electrical panels and motor control centers.

  • CHKD3250T56WPN | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3250T56WPN

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $17,222.08
    $19,681.28
  • CHKD3250T56WZG | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3250T56WZG

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $17,133.64
    $19,580.21
  • CHKD3250T56WZGP | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3250T56WZGP

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $17,329.13
    $28,881.89
  • CHKD3250T57W | Eaton CHKD OPTIM 550 LSIA 250 A Bkr Assy(100%Rated)w/o Terminals
    Eaton

    CHKD3250T57W

    CHKD OPTIM 550 LSIA 250 A Bkr Assy(100%Rated)w/o Terminals

    $15,215.94
    $19,924.55
  • CHKD3250T57WPN | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3250T57WPN

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $15,890.85
    $18,159.88
  • CHKD3250T57WZG | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3250T57WZG

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $15,807.08
    $18,064.13
  • CHKD3250T57WZGP | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3250T57WZGP

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $15,997.93
    $18,282.24
  • CHKD3400F | Eaton HKD 100% RATED 3P FRAME -- AN ELECTRONIC TRIP MUST BE USED
    Eaton

    CHKD3400F

    HKD 100% RATED 3P FRAME -- AN ELECTRONIC TRIP MUST BE USED

    $9,806.48
    $16,344.14
  • CHKD3400FK03P24X15 | Eaton CHKD BREAKER 100% 3 POLE W/ LS TRIP UNIT, 4KES400T PLUG AND
    Eaton

    CHKD3400FK03P24X15

    CHKD BREAKER 100% 3 POLE W/ LS TRIP UNIT, 4KES400T PLUG AND

    $12,436.15
    $20,726.93
  • CHKD3400FVWH09K62 | Eaton CHKD3400 WITH KES3400LSV TRIP UNIT AND NAVAL LABELED
    Eaton

    CHKD3400FVWH09K62

    CHKD3400 WITH KES3400LSV TRIP UNIT AND NAVAL LABELED

    $13,504.48
    $22,507.45
  • CHKD3400FVWH09K62U18 | Eaton CHKD3400 W/TRIP KES3400LSV AND NAVAL LABELED W/120V UVR
    Eaton

    CHKD3400FVWH09K62U18

    CHKD3400 W/TRIP KES3400LSV AND NAVAL LABELED W/120V UVR

    $14,786.43
    $24,644.04
  • CHKD3400T106W | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T106W

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $18,851.21
    $21,543.14
  • CHKD3400T107W | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T107W

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $17,319.84
    $19,793.00
  • CHKD3400T52W | Eaton CHKD OPTIM 550 LSI 400 A Bkr Assy(100%Rated)w/o Terminals
    Eaton

    CHKD3400T52W

    CHKD OPTIM 550 LSI 400 A Bkr Assy(100%Rated)w/o Terminals

    $13,852.15
    $23,086.90
  • CHKD3400T52WPN | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T52WPN

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $14,541.03
    $24,235.03
  • CHKD3400T52WZG | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T52WZG

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $14,461.90
    $18,937.13
  • CHKD3400T52WZGP | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T52WZGP

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $14,662.05
    $15,617.76
  • CHKD3400T56W | Eaton CHKD OPTIM 550 LSIG 400 A Bkr Assy(100%Rated)w/o Terminals
    Eaton

    CHKD3400T56W

    CHKD OPTIM 550 LSIG 400 A Bkr Assy(100%Rated)w/o Terminals

    $16,547.16
    $21,667.82
  • CHKD3400T56WPN | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T56WPN

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $17,222.08
    $18,598.75
  • CHKD3400T56WZG | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T56WZG

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $17,133.64
    $18,909.95
  • CHKD3400T56WZGP | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T56WZGP

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $17,329.13
    $22,691.84
  • CHKD3400T57W | Eaton CHKD OPTIM 550 LSIA 400 A Bkr Assy(100%Rated)w/o Terminals
    Eaton

    CHKD3400T57W

    CHKD OPTIM 550 LSIA 400 A Bkr Assy(100%Rated)w/o Terminals

    $15,215.94
    $17,388.54
  • CHKD3400T57WPN | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T57WPN

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $15,890.85
    $17,161.02
  • CHKD3400T57WZG | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T57WZG

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $13,465.80
    $17,632.71
  • CHKD3400T57WZGP | Eaton CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY
    Eaton

    CHKD3400T57WZGP

    CIRCUIT BREAKER OPTIM CHKD/CKD ASSEMBLY

    $15,997.93
    $18,282.24
  • CHKDB3250FT32B20W | Eaton CHKDB 65K 310+ BRK R F 3P 250A LSI HLA
    Eaton

    CHKDB3250FT32B20W

    CHKDB 65K 310+ BRK R F 3P 250A LSI HLA

    $14,134.49
    $23,557.48
  • CHKDB3250FT32B20ZGW | Eaton CHKDB 65K 310+ BRK R F 3P 250A LSI HLA ZSI
    Eaton

    CHKDB3250FT32B20ZGW

    CHKDB 65K 310+ BRK R F 3P 250A LSI HLA ZSI

    $14,611.11
    $24,351.86
  • CHKDB3250FT32W | Eaton CHKDB 65K 310+ BRK R F 3P 250A LSI
    Eaton

    CHKDB3250FT32W

    CHKDB 65K 310+ BRK R F 3P 250A LSI

    $13,351.08
    $22,251.78

Circuit Breakers We Offer

Wistex provides a wide selection of industrial circuit breakers designed to safeguard electrical systems across a variety of industries. Whether you need circuit protection for motor loads, panel boards, or HVAC systems, we offer trusted solutions from ABB and other leading brands.

ABB Circuit Breaker

ABB Circuit Breakers

Our range of ABB circuit breakers delivers proven protection for industrial, commercial, and manufacturing environments. ABB breakers are known for their reliability, ease of installation, and compliance with the latest electrical safety standards.

Motor Circuit Breakers

Motor circuit breakers are specifically designed to protect electric motors against overloads, phase failures, and short circuits. Ideal for high inrush current applications, they ensure critical motor systems operate safely and efficiently.

Motor Circuit Breakers
Low Voltage Circuit Breakers

Low-Voltage Circuit Breakers

Low-voltage circuit breakers offer flexible protection for commercial and light industrial systems. They prevent electrical faults in panel boards, control cabinets, and HVAC systems while maintaining safe operation and minimizing downtime.

Applications for Circuit Breakers

Our industrial circuit breakers are ideal for protecting critical systems across a wide range of industries:

  • Motor control center protection to ensure safe operation of heavy machinery
  • Panel board protection for industrial and commercial electrical distribution
  • Short circuit protection for HVAC equipment, compressors, and large facility systems

Pair your circuit breakers with overload relays and contactors for a complete protection system.

Why Choose Wistex for Industrial Circuit Breakers

Find durable and dependable industrial circuit breakers at Wistex. We offer ABB motor circuit breakers and low-voltage breakers designed to protect your electrical systems from overloads, faults, and short circuits.

Why choose Wistex for circuit breakers?

  • Wide inventory of ABB circuit breakers for industrial applications
  • Expert guidance on selecting the right amperage, trip curve, and protection class
  • Fast order processing and delivery to minimize downtime
  • Long-term support with warranty coverage and replacement options
  • Protect your operations and equipment with industrial circuit breakers from Wistex.

Get the right contactor to power your success — backed by Wistex expertise.

Circuit Breaker FAQs

Find quick answers to common questions about selecting and using industrial circuit breakers.

A circuit breaker automatically interrupts the flow of electricity when it detects an overload, short circuit, or fault condition. This protects wiring, equipment, and personnel from electrical hazards and prevents costly damage to industrial systems.

Choosing the correct circuit breaker depends on several factors:

  • Load size and type (motor, lighting, HVAC, etc.)
  • Voltage rating (low voltage, medium voltage)
  • Interrupt rating (ability to handle fault currents)
  • Application environment (indoor, outdoor, corrosive conditions). Wistex’s technical team can assist you in selecting the best circuit breaker for your specific needs.

Motor circuit breakers are specially designed to handle the high inrush currents typical during motor startup. They provide both overload and short-circuit protection tailored for motors. Standard circuit breakers are used for general electrical circuits, such as panelboards and lighting, where the startup current is lower and more consistent.