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.

  • B1H2D16 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 16A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D16

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 16A, 10 kA, 480Y/277 Vac, Box Lug

    $38.93
  • B1H2D2 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 2A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D2

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 2A, 10 kA, 480Y/277 Vac, Box Lug

    $38.93
  • B1H2D20 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 20A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D20

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 20A, 10 kA, 480Y/277 Vac, Box Lug

    $43.99
  • B1H2D25 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 25A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D25

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 25A, 10 kA, 480Y/277 Vac, Box Lug

    $44.12
  • B1H2D3 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 3A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D3

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 3A, 10 kA, 480Y/277 Vac, Box Lug

    $38.93
  • B1H2D30 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 30A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D30

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 30A, 10 kA, 480Y/277 Vac, Box Lug

    $44.12
  • B1H2D32 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 32A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D32

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 32A, 10 kA, 480Y/277 Vac, Box Lug

    $43.99
  • B1H2D4 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 4A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D4

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 4A, 10 kA, 480Y/277 Vac, Box Lug

    $38.93
  • B1H2D5 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 5A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D5

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 5A, 10 kA, 480Y/277 Vac, Box Lug

    $38.93
  • B1H2D6 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 6A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D6

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 6A, 10 kA, 480Y/277 Vac, Box Lug

    $38.93
  • B1H2D7 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 7A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D7

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 7A, 10 kA, 480Y/277 Vac, Box Lug

    $38.93
    $43.13
  • B1H2D8 Noark Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 8A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H2D8

    Miniature Circuit Breakers, B1H UL 489, 2P, D Curve, 8A, 10 kA, 480Y/277 Vac, Box Lug

    $38.93
  • B1H3B0.5 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 0.5A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B0.5

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 0.5A, 10 kA, 480Y/277 Vac, Box Lug

    $58.86
  • B1H3B1 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 1A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B1

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 1A, 10 kA, 480Y/277 Vac, Box Lug

    $58.86
  • B1H3B1.6 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 1.6A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B1.6

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 1.6A, 10 kA, 480Y/277 Vac, Box Lug

    $66.69
  • B1H3B10 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 10A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B10

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 10A, 10 kA, 480Y/277 Vac, Box Lug

    $65.99
  • B1H3B13 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 13A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B13

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 13A, 10 kA, 480Y/277 Vac, Box Lug

    $58.86
  • B1H3B15 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 15A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B15

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 15A, 10 kA, 480Y/277 Vac, Box Lug

    $66.69
  • B1H3B16 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 16A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B16

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 16A, 10 kA, 480Y/277 Vac, Box Lug

    $71.80
  • B1H3B2 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 2A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B2

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 2A, 10 kA, 480Y/277 Vac, Box Lug

    $58.86
  • B1H3B20 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 20A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B20

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 20A, 10 kA, 480Y/277 Vac, Box Lug

    $71.80
  • B1H3B25 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 25A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B25

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 25A, 10 kA, 480Y/277 Vac, Box Lug

    $66.69
  • B1H3B3 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 3A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B3

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 3A, 10 kA, 480Y/277 Vac, Box Lug

    $58.86
  • B1H3B30 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 30A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B30

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 30A, 10 kA, 480Y/277 Vac, Box Lug

    $65.99
  • B1H3B32 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 32A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B32

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 32A, 10 kA, 480Y/277 Vac, Box Lug

    $71.80
  • B1H3B4 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 4A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B4

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 4A, 10 kA, 480Y/277 Vac, Box Lug

    $58.86
    $65.40
  • B1H3B5 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 5A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B5

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 5A, 10 kA, 480Y/277 Vac, Box Lug

    $71.80
  • B1H3B6 Noark Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 6A, 10 kA, 480Y/277 Vac, Box Lug
    Noark

    B1H3B6

    Miniature Circuit Breakers, B1H UL 489, 3P, B Curve, 6A, 10 kA, 480Y/277 Vac, Box Lug

    $58.86
    $65.40

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.