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  1. Home
  2. /
  3. Electrical Supplies
  4. /
  5. Circuit Protection
  6. /
  7. Circuit Breakers

Circuit Breakers (244 items) - Page 3

Eaton Circuit Breaker, CH Series, 20A, 1 Pole, 120/240V AC, 10kA CHFP120DF
EATON CH Ground Fault Circuit Interrupter Plug In Circuit Breaker
7 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
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Eaton Molded Case Circuit Breaker, HFD Series, 150A, 3 Pole, 600V AC, 100kA at 240V AC HFD3150
EATON HFD Standard Free Standing Molded Case Circuit Breaker
21 results
table view View Items
Square D Miniature Circuit Breaker, HOMT Series, 20A, 1 Pole, 120/240V AC, 10kA HOMT2020CP
SQUARE D HOMT Tandem Plug In Miniature Circuit Breaker
5 results
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Dayton Circuit Breaker, NDB2-63 D50/3 Series, 50A, 3 Pole, 480V AC, 7.5kA at 480V AC, D Curve 5ZVG4
Dayton

Circuit Breaker, NDB2-63 D50/3 Series, 50A, 3 Pole, 480V AC, 7.5kA at 480V AC, D Curve

Zoro # G0886112
Mfr # 5ZVG4
product price:  $74.59
/ea
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
Square D Miniature Circuit Breaker, HOMELINE Series, 15A, 1 Pole, 120V AC, 10kA at 120V AC HOM115CAFI
SQUARE D HOMELINE Combination ARC Fault Plug In Miniature Circuit Breaker
7 results
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Siemens Miniature Circuit Breaker, BQ Series, 40A, 3 Pole, 240V AC, 10kA at 240V AC BQ3B04000S01
SIEMENS BQ Shunt Trip Bolt On Miniature Circuit Breaker
27 results
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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
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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:  $39.89
/ea
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
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Siemens Circuit Breaker, 5SY6 Series, 50A, 1 Pole, 230/400V AC, 5kA at 230/400V AC, C Curve 5SY61507
SIEMENS 5SY6 Supplementary Protector Surface Mount/DIN Rail Circuit Breaker
79 results
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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
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Eaton Miniature Circuit Breaker, CKT Series, 30A, 1 Pole QBHW1030
EATON CKT Miniture Circuit Breaker Bolt On Miniature Circuit Breaker
11 results
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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
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Ge Miniature Circuit Breaker, THQB Series, 20A, 1 Pole, 120/240V AC, 10kA at 120/240V AC THQB1120HID
GE THQB High Interrupting Bolt On Miniature Circuit Breaker
6 results
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Square D Miniature Circuit Breaker, QO Series, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC QOB230HID
SQUARE D QO High Intensity Discharge Bolt On Miniature Circuit Breaker
8 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
Eaton Miniature Circuit Breaker, CB Series, 40A, 3 Pole, 240V AC BR340
EATON CB Miniture Circuit Breaker Plug On Miniature Circuit Breaker
38 results
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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
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Square D Combination Circuit Breaker, QO Series, 15A, 1 Pole, 120V AC, 10kA at 120V AC SQ387811
SQUARE D QO Ground Fault Circuit Interrupter Plug In Combination Circuit Breaker
3 results
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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
Eaton Molded Case Circuit Breaker, HJD Series, 250A, 3 Pole, 600V AC, 100kA at 240V AC HJD3250
EATON HJD Standard Free Standing Molded Case Circuit Breaker
2 results
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Dayton Circuit Breaker, NDB2-63 C10/1 Series, 10A, 1 Pole, 277V AC, 5kA at 277V AC, C Curve 5ZUZ4
Dayton

Circuit Breaker, NDB2-63 C10/1 Series, 10A, 1 Pole, 277V AC, 5kA at 277V AC, C Curve

Zoro # G3192743
Mfr # 5ZUZ4
product price:  $25.99
/ea
Connecticut Electric Miniature Circuit Breaker, QC Series, 100A, 2 Pole, 120/240V AC, 11kA at 120/240V AC UBIZ2100-1
CONNECTICUT ELECTRIC QC Standard Plug In Miniature Circuit Breaker
2 results
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Challenger Miniature Circuit Breaker, UBITBA Series, 15A, 2 Pole, 120/240V AC, 10kA at 120/240V AC UBITBA215
CHALLENGER UBITBA Standard Plug In Miniature Circuit Breaker
11 results
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Ge Industrial Solutions Circuit Breaker, THQP Series, 50A, 2 Pole, 120/240V AC, 10kA at 120/240V AC THQP250
GE INDUSTRIAL SOLUTIONS THQP Standard Plug In Circuit Breaker
9 results
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Schneider Electric IEC Supplementary Protector, GFP Series, 25 A, 2 Pole, 240V AC, 1.5kA at 240V AC, A Curve M9R84225
SCHNEIDER ELECTRIC MULTI9 Low Voltage Clip On IEC Supplementary Protector
17 results
table view View Items
Siemens Circuit Breaker, B Series, 30A, 3 Pole, 240V AC, 10kA B330
Siemens

Circuit Breaker, B Series, 30A, 3 Pole, 240V AC, 10kA

Zoro # G0528805
Mfr # B330
product price:  $344.99
/ea
Eaton Cutler-Hammer Combination Circuit Breaker, CHF Series, 20A, 1 Pole, 120/240V AC, 10kA CHFCAF120
Eaton Cutler-Hammer

Combination Circuit Breaker, CHF Series, 20A, 1 Pole, 120/240V AC, 10kA

Zoro # G1758921
Mfr # CHFCAF120
product price:  $101.99
/ea
Ge Circuit Breaker, THQL Series, 30A, 1 Pole, 120/240V AC, 10kA at 120/240V AC THQL1130GFTA
GE THQL Ground Fault Circuit Interrupter Plug In Circuit Breaker
4 results
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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
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Square D Circuit Breaker, HOM Series, 50A, 2 Pole, 120/240V AC, 10kA SQ386553
SQUARE D HOMELINE Ground Fault Circuit Interrupter Plug In Circuit Breaker
5 results
table view View Items
Dayton Circuit Breaker, NDB2-63 C63/3 Series, 63A, 3 Pole, 480V AC, 7.5kA at 480V AC, C Curve 5ZVD2
Dayton

Circuit Breaker, NDB2-63 C63/3 Series, 63A, 3 Pole, 480V AC, 7.5kA at 480V AC, C Curve

Zoro # G1787667
Mfr # 5ZVD2
product price:  $74.59
/ea
Ge Molded Case Circuit Breaker, TEYD Series, 20A, 1 Pole, 277/480V AC, 25kA at 277/480V AC TEYD1020B
GE TEYD Standard Bolt On Molded Case Circuit Breaker
35 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
Circuit Breakers (244 items) - Page 3
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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.

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