Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Deals
  • Contact Us
Added to Cart
Skip to Main Content Accessibility Statement
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Customer Service
0
0
Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Electrical Supplies
  4. /
  5. Circuit Protection
  6. /
  7. Circuit Breakers

Circuit Breakers (247 items)

Zinsco Miniature Circuit Breaker, UBIZ Series, 15/15A, 1 Pole, 120/240V AC, 10kA at 120V AC UBIZ1515
ZINSCO UBIZ Tandem Plug In Miniature Circuit Breaker
2 results
table view View Items
Eaton Cutler-Hammer Circuit Breaker, BD Series, 15A, 1 Pole, 120V AC, 10kA BD1515
EATON CUTLER-HAMMER BD Tandem Plug In Circuit Breaker
3 results
table view View Items
Square D Miniature Circuit Breaker, HOMELINE Series, 35A, 2 Pole, 240V AC, 10kA at 240V AC HOM235
SQUARE D HOMELINE Standard Plug In Miniature Circuit Breaker
52 results
table view View Items
Square D Miniature Circuit Breaker, QO Series, 40A, 2 Pole, 120/240V AC, 10kA at 120/240V AC QO240CP
SQUARE D QO Standard Plug In Miniature Circuit Breaker
174 results
table view View Items
Schneider Electric IEC Miniature Circuit Breaker, MULTI9 Series, 2A, 1 Pole, 240/415V AC, 14kA at 120/240V AC, C Curve M9F42102
SCHNEIDER ELECTRIC MULTI9 Low Voltage Clip On IEC Miniature Circuit Breaker
112 results
table view View Items
Siemens Miniature Circuit Breaker, Q Series, 15/20A, 1 Pole, 120V AC, 10kA at 120V AC Q1520
SIEMENS Q Duplex Plug In Miniature Circuit Breaker
3 results
table view View Items
Siemens Miniature Circuit Breaker, BF Series, 20A, 1 Pole, 120V AC, 10kA at 120V AC BF120A
SIEMENS BF Ground Fault Circuit Interrupter Bolt On Miniature Circuit Breaker
6 results
table view View Items
Square D Miniature Circuit Breaker, HOMELINE Series, 20A, 1 Pole, 120V AC, 10kA at 120V AC HOM120CAFI
SQUARE D HOMELINE Combination ARC Fault Plug In Miniature Circuit Breaker
7 results
table view View Items
Square D Miniature Circuit Breaker, QO Series, 80A, 3 Pole, 120/240V AC, 10kA at 120/240V AC QOU380
SQUARE D QO Standard Unit Mount Miniature Circuit Breaker
121 results
table view View Items
Siemens Miniature Circuit Breaker, Q Series, 125A, 2 Pole, 120/240V AC, 10kA at 120V AC Q2125
SIEMENS Q Standard Plug In Miniature Circuit Breaker
21 results
table view View Items
Carling Technologies Circuit Breaker, CTB Series, 5A, 1 Pole, 125/250V AC, 1.0kA at 240V AC, C Curve CTB-B-B-05
CARLING TECHNOLOGIES CTB Thermal Plug In Circuit Breaker
5 results
table view View Items
Asi Circuit Breaker, NDB1L-32C Series, 20A, 2 Pole, 120V AC, 4.5kA, C Curve NDB1L-32C-20-120V
ASI NDB1L-32C Ground Fault Circuit Interrupter Surface Mount/DIN Rail Circuit Breaker
11 results
table view View Items
Square D Miniature Circuit Breaker, E FRAME Series, 30A, 3 Pole, 277/480V AC, 65kA at 120V AC EGB34030
SQUARE D E FRAME Standard Bolt On Miniature Circuit Breaker
106 results
table view View Items
Siemens Miniature Circuit Breaker, QF Series, 50A, 2 Pole, 120/240V AC, 10kA at 120/240V AC QF250A
SIEMENS QF Ground Fault Circuit Interrupter Plug In Miniature Circuit Breaker
6 results
table view View Items
No Product Image Available
EATON CUTLER-HAMMER BAB Thermal Magnetic Bolt On Circuit Breaker
2 results
table view View Items
Square D Miniature Circuit Breaker, QO Series, 50A, 3 Pole, 208/120V AC, 10kA at 208/120V AC, A Curve QO350GFI
SQUARE D QO Ground Fault Protecting Class A 6 mA Plug In Miniature Circuit Breaker
19 results
table view View Items
Siemens Circuit Breaker, 5SY4 Series, 5A, 1 Pole, 230/400V AC, 10kA at 230/400V AC, C Curve 5SY41117
SIEMENS 5SY4 Supplementary Protector Surface Mount/DIN Rail Circuit Breaker
19 results
table view View Items
Eaton Circuit Breaker, Type BAB Series, 32A, 3 Pole, 240V AC BAB3035H
Eaton

Circuit Breaker, Type BAB Series, 32A, 3 Pole, 240V AC

Zoro # G014236218
Mfr # BAB3035H
product price:  $171.99
/ea
Siemens Miniature Circuit Breaker, BQ Series, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC BQ2B030
SIEMENS BQ Standard Bolt On Miniature Circuit Breaker
39 results
table view View Items
Optifuse Circuit Breaker, 153 Series, 25 to 200A, 3kA at 42V DC 153150
OPTIFUSE 153 High Amperage Heavy Duty Circuit Breakers Surface Mount/DIN Rail Circuit Breaker
13 results
table view View Items
Zinsco Miniature Circuit Breaker, UBIZ Series, 50A, 1 Pole, 120/240V AC, 10kA at 120V AC UBIZ50
ZINSCO UBIZ Standard Plug In Miniature Circuit Breaker
13 results
table view View Items
Square D Miniature Circuit Breaker, QO Series, 80A, 3 Pole, 120/240V AC, 10kA at 120/240V AC QOB380
SQUARE D QO Standard Bolt On Miniature Circuit Breaker
126 results
table view View Items
Ge Industrial Solutions Circuit Breaker, THQL Series, 30A, 1 Pole, 120/240V AC, 10kA at 120/240V AC THQL1130
GE INDUSTRIAL SOLUTIONS THQL Standard Plug In Circuit Breaker
14 results
table view View Items
Carling Technologies Circuit Breaker, C Series, 100A, 1 Pole, 250V AC, 1.5kA at 120/240V AC, C Curve CA1-B0-34-810-321-R
CARLING TECHNOLOGIES C Magnetic Bolt On Circuit Breaker
11 results
table view View Items
Siemens Miniature Circuit Breaker, BL Series, 20A, 1 Pole, 120/240V AC, 22kA at 120/240V AC B120H
SIEMENS BL Standard Bolt On Miniature Circuit Breaker
108 results
table view View Items
Siemens Miniature Circuit Breaker, BQD Series, 30A, 3 Pole, 480V AC, 14kA at 480V AC BQD330
SIEMENS BQD Standard Bolt On Miniature Circuit Breaker
39 results
table view View Items
Schneider Electric Miniature Circuit Breaker, C60SP Series, 40A, 3 Pole, 240/415/440V AC, 10kA at 240V AC, C Curve M9F22340
SCHNEIDER ELECTRIC MULTI9 Low Voltage Clip On Miniature Circuit Breaker
219 results
table view View Items
Dayton Circuit Breaker, NDB2-63 C20/2 Series, 20A, 2 Pole, 480V AC, 7.5kA at 480V AC, C Curve 5ZVA6
Dayton

Circuit Breaker, NDB2-63 C20/2 Series, 20A, 2 Pole, 480V AC, 7.5kA at 480V AC, C Curve

Zoro # G2026832
Mfr # 5ZVA6
product price:  $48.15
/ea
Square D Miniature Circuit Breaker, QO Series, 15/15A, 2x1 Pole, 120/240V AC, 10kA at 120/240V AC QO1515
SQUARE D QO Tandem Plug In Miniature Circuit Breaker
18 results
table view View Items
Eaton Molded Case Circuit Breaker, EHD Series, 100A, 3 Pole, 480V AC, 18kA at 240V AC EHD3100
EATON EHD Standard Free Standing Molded Case Circuit Breaker
28 results
table view View Items
Ge Molded Case Circuit Breaker, TEY Series, 20A, 3 Pole, 277/480V AC, 14kA at 277/480V AC TEY320
GE TEY Standard Bolt On Molded Case Circuit Breaker
35 results
table view View Items
Zinsco Miniature Circuit Breaker, UBITBFP Series, 150A, 2 Pole, 120/240V AC, 10kA at 120/240V AC UBITBFP1502
ZINSCO UBITBFP Standard Plug In Miniature Circuit Breaker
2 results
table view View Items
Eaton Miniature Circuit Breakers MCBs 2P 50A 240V BAB2050
EATON CB Miniture Circuit Breaker Bolt On Miniature Circuit Breaker
38 results
table view View Items
Ge Molded Case Circuit Breaker, THQL Series, 40A, 3 Pole, 240V AC, 10kA at 240V AC THQL32040
GE THQL Standard Plug In Molded Case Circuit Breaker
35 results
table view View Items
Ge Electric Circuit Breaker, THQL Series, 20A, 2 Pole, 120/240V AC, 10kA at 120/240V AC 6122022
GE ELECTRIC THQL Standard Plug In Circuit Breaker
4 results
table view View Items
Eaton Molded Case Circuit Breaker, HFD Series, 70A, 3 Pole, 600V AC, 100kA at 240V AC HFD3070
EATON HFD Standard Free Standing Molded Case Circuit Breaker
21 results
table view View Items
Circuit Breakers (247 items)
  • 1
    of 7 pages
  • Next
  • Last
How was your search?

About Circuit Breakers

As an integral safety feature in any electrical setup, Circuit Breakers are meticulously designed to guard wiring systems, appliances, and other electrical components against potential damage caused by electricity overloads or short circuits. These indispensable devices can be deployed across a wide range of settings - from homes and businesses to industrial plants, ensuring the safe distribution of electricity wherever it's required.

Types of Circuit Breakers

Circuit breakers, also known as breaker breakers or electrical circuit breakers, come in an array of forms and dimensions tailored for specific tasks. For instance, 1-pole circuit breakers are commonly utilized for lighter loads such as lighting circuits. On the other hand, 5 amp breaker square D types are typically employed for handling heavier loads like air conditioners. AC breakers offer enhanced protection against power surges compared to standard electric circuit breakers.

The Making of Circuit Breakers

The fabrication process of a circuit breaker involves the use of various materials including copper wire and conductive metals that form the internal components tasked with detecting an overload or short circuit situation. A spring-loaded switch is subsequently linked to these contacts enabling it to trip when the current surpasses its designated limit.

Fuses and Circuit Breaker Integration

A key tip when using your circuit breaker is understanding how fuses integrate into this system. Fuses act as sacrificial lambs that blow out when there's a surge in power protecting your overall electrical setup from damage.

Circuit Breaker Applications Across Industries

Circuit Breaker applications span across a variety of industries such as manufacturing plants, power plants, oil refineries, aerospace facilities, automotive shops, and more. Professionals working with these high-powered machines heavily rely on circuit breakers to safeguard their equipment from potential damage caused by electrical surges or short circuits.

Find the Circuit Breaker You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of electrical supplies, along with other tools or equipment to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time. Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Related Categories

Circuit Breaker & Panelboard AccessoriesPanelboards, Load Centers, & Circuit Breaker EnclosuresElectrical Switches & RelaysElectrical ControlsCable Routing & Conduit
FusesPower Wire & CableWire Connectors & TerminalsStraight Blade DevicesElectrical Box Covers
circuit breaker br seriesbl breakercarling breakersc series circuit breakereaton 200 amp breaker
circuit breakers &90 amp breakernavien npe-240a2square d 40 ampcircuit breaker thql

Sign up and save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every part plays a part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Deals
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research
  • Tax Exemption

Zoro, Inc

Connect

Customer service from real people

  • Phone: (855) 289-9676
  • Contact Us

© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro, Inc