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
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
Cart Icon
0
Cart Icon
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 (246 items) - Page 4

Square D Miniature Circuit Breaker, HOMELINE Series, 20A, 1 Pole, 120V AC, 10kA at 120V AC, B Curve HOM120EPD
SQUARE D HOMELINE Ground Fault Protecting Class B 30 mA Plug In Miniature Circuit Breaker
3 results
table view View Items
Square D Miniature Circuit Breaker, QO Series, 30A, 1 Pole, 120/240V AC, 10kA at 120/240V AC QOB130HID
SQUARE D QO High Intensity Discharge Bolt On Miniature Circuit Breaker
8 results
table view View Items
Ge Molded Case Circuit Breaker, TED Series, 20A, 1 Pole, 277V AC, 14kA at 277V AC TED113020WL
GE TED Standard Bolt On Molded Case Circuit Breaker
42 results
table view View Items
Square D Circuit Breaker, QO Series, 20A, 1 Pole, 120V AC, 10kA at 120/240V AC QO120CAFIC
SQUARE D QO Ground Fault Circuit Interrupter Plug In Circuit Breaker
3 results
table view View Items
Maxpower Circuit Breaker, QO Series, 20A, 2x1 Pole, 120/240V AC, 10kA at 120/240V AC MA108593
Maxpower

Circuit Breaker, QO Series, 20A, 2x1 Pole, 120/240V AC, 10kA at 120/240V AC

Zoro # G710664513
Mfr # MA108593
product price:  $59.89
/ea
Eaton Miniature Circuit Breakers MCBs CH2100
Eaton

Miniature Circuit Breakers MCBs

Zoro # G016524795
Mfr # CH2100
product price:  $169.99
/ea
Square D Molded Case Breakers MCCBs EGB34070SA
Square D

Molded Case Breakers MCCBs

Zoro # G016524986
Mfr # EGB34070SA
product price:  $1,966.99
/ea
Eaton Cutler-Hammer Circuit Breaker, BRP Series, 15A, 1 Pole, 120/240V AC, 10kA BRP115GF
EATON CUTLER-HAMMER BRP Ground Fault Circuit Interrupter Plug In Circuit Breaker
2 results
table view View Items
Ge Industrial Solutions Circuit Breaker, THQP Series, 20A, 2 Pole, 120/240V AC, 10kA at 120/240V AC THQP220
GE INDUSTRIAL SOLUTIONS THQP Standard Plug In Circuit Breaker
9 results
table view View Items
Square D Miniature Circuit Breaker, QO Series, 20A, 1 Pole, 120/240V AC, 10kA at 120/240V AC QO120HID
SQUARE D QO High Intensity Discharge Plug In Miniature Circuit Breaker
6 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:  $45.79
/ea
Dayton Circuit Breaker, NDB2Z-63 C1/1 Series, 1A, 1 Pole, Not Rated, 10kA at 440V DC, C Curve 5MLC0
Dayton

Circuit Breaker, NDB2Z-63 C1/1 Series, 1A, 1 Pole, Not Rated, 10kA at 440V DC, C Curve

Zoro # G0257171
Mfr # 5MLC0
product price:  $51.89
/ea
Siemens Miniature Circuit Breaker, Q Series, 20A, 1 Pole, 120V AC, 10kA at 120V AC Q120HID
SIEMENS Q High Interrupting Plug In Miniature Circuit Breaker
5 results
table view View Items
Dayton Circuit Breaker, NDB2-63 B32/3 Series, 32A, 3 Pole, 480V AC, 7.5kA at 480V AC, B Curve 5ZUY8
Dayton

Circuit Breaker, NDB2-63 B32/3 Series, 32A, 3 Pole, 480V AC, 7.5kA at 480V AC, B Curve

Zoro # G3421905
Mfr # 5ZUY8
product price:  $64.89
/ea
Ge Miniature Circuit Breaker, THQC Series, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC THQC2130WL
GE THQC Standard Surface Mount/DIN Rail Miniature Circuit Breaker
18 results
table view View Items
Eaton Circuit Breaker, FAZ Series, 4A, 1 Pole, 277/480V AC, 15kA at 277V AC, C Curve FAZ-C4/1-SP
EATON FAZ Supplementary Protector Surface Mount/DIN Rail Circuit Breaker
2 results
table view View Items
Eaton Miniature Circuit Breaker, CB Series, 15A, 3 Pole, 240V AC BAB3015H
EATON CB Miniture Circuit Breaker Bolt On Miniature Circuit Breaker
36 results
table view View Items
Eaton Molded Case Circuit Breaker, JG Series, 250A, 3 Pole, 600V AC, 25kA at 240V AC JGE3250FAG
EATON JG Standard Free Standing Molded Case Circuit Breaker
15 results
table view View Items
Dayton Circuit Breaker, NDB2-63 C40/2 Series, 40A, 2 Pole, 480V AC, 7.5kA at 480V AC, C Curve 5ZVA9
Dayton

Circuit Breaker, NDB2-63 C40/2 Series, 40A, 2 Pole, 480V AC, 7.5kA at 480V AC, C Curve

Zoro # G1354735
Mfr # 5ZVA9
product price:  $37.99
/ea
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 Circuit Breaker, BR Series, 20A, 2 Pole, 120V AC, 10kA BR2020
EATON BR Tandem Plug In Circuit Breaker
2 results
table view View Items
Industrial C & S Circuit Breaker, THQL Series, 50A, 2 Pole, 120/240V AC, 10kA at 120/240V AC THQL2150
INDUSTRIAL C & S THQL Standard Plug In Circuit Breaker
16 results
table view View Items
Siemens Molded Case Circuit Breaker, FXD6-A Series, 150A, 3 Pole, 600V AC, 22kA at 600V AC FXD63B150
SIEMENS FXD6-A Standard Free Standing Molded Case Circuit Breaker
10 results
table view View Items
Eaton Miniature Circuit Breakers MCBs CH 2P 70A 240V 50/60Hz 1Ph CH270
Eaton

Miniature Circuit Breakers MCBs CH 2P 70A 240V 50/60Hz 1Ph

Zoro # G214241838
Mfr # CH270
product price:  $72.39
/ea
Schneider Electric IEC Supplementary Protector, GFP Series, 25 A, 4 Pole, 240V AC, 10kA at 240V AC, A Curve M9R81425
SCHNEIDER ELECTRIC MULTI9 Low Voltage Clip On IEC Supplementary Protector
17 results
table view View Items
Square D Miniature Circuit Breaker, QO Series, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC, B Curve QO230EPD
SQUARE D QO Ground Fault Protecting Class B 30 mA Plug In Miniature Circuit Breaker
11 results
table view View Items
Square D Miniature Circuit Breaker, HOMELINE Series, 20A, 1 Pole, 120V AC, 10kA at 120V AC QOB120CAFI
SQUARE D HOMELINE Combination ARC Fault Bolt On Miniature Circuit Breaker
3 results
table view View Items
Ge Molded Case Circuit Breaker, TEYD Series, 20A, 3 Pole, 277/480V AC, 25kA at 277/480V AC TEYD3020B
GE TEYD Standard Bolt On Molded Case Circuit Breaker
35 results
table view View Items
Dayton Circuit Breaker, NDB2-63 D16/3 Series, 16A, 3 Pole, 480V AC, 7.5kA at 480V AC, D Curve 5ZVF9
Dayton

Circuit Breaker, NDB2-63 D16/3 Series, 16A, 3 Pole, 480V AC, 7.5kA at 480V AC, D Curve

Zoro # G0943205
Mfr # 5ZVF9
product price:  $64.69
/ea
Eaton Cutler-Hammer Circuit Breaker, BD Series, 15A, 1 Pole, 120V AC, 10kA BD1515
EATON CUTLER-HAMMER BD Duplex Plug In Circuit Breaker
2 results
table view View Items
Square D Circuit Breaker, QO Series, 20A, 2x1 Pole, 120/240V AC, 10kA at 120/240V AC 5841564
Square D

Circuit Breaker, QO Series, 20A, 2x1 Pole, 120/240V AC, 10kA at 120/240V AC

Zoro # G004021428
Mfr # 5841564
product price:  $142.99
/ea
Eaton Molded Case Circuit Breaker, ED Series, 200A, 2 Pole, 240V AC, 65kA at 240V AC ED2200
EATON ED Standard Free Standing Molded Case Circuit Breaker
7 results
table view View Items
Eaton Molded Case Circuit Breaker, HFD Series, 30A, 3 Pole, 600V AC, 100kA at 240V AC HFD3030
EATON HFD Standard Free Standing Molded Case Circuit Breaker
21 results
table view View Items
Ge Molded Case Circuit Breaker, TEYF Series, 60A, 3 Pole, 277/480V AC, 18kA at 277/480V AC TEYF360
GE TEYF Standard Bolt On Molded Case Circuit Breaker
34 results
table view View Items
Eaton Molded Case Circuit Breaker, DK Series, 400A, 3 Pole, 240V AC, 65kA at 240V AC DK3400
EATON DK Standard Free Standing Molded Case Circuit Breaker
2 results
table view View Items
Eaton Molded Case Circuit Breaker, KD Series, 300A, 3 Pole, 600V AC, 65kA at 240V AC KD3300
EATON KD Standard Free Standing Molded Case Circuit Breaker
4 results
table view View Items
Circuit Breakers (246 items) - Page 4
  • First
  • Previous
  • 4
    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 & RelaysCable Routing & ConduitFuses
Electrical ControlsPower Wire & CableWire Connectors & TerminalsStraight Blade DevicesElectrical Box Covers
eaton miniature circuit breaker4 pole circuit breakercircuit breaker br seriescircuit breakers 2 polebl breaker
square d 40 ampcircuit breaker thqleaton 100 amp breakereaton 200 amp breakerc series circuit breaker

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

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