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

Circuit Breakers (245 items) - Page 5

Eaton Miniature Circuit Breakers MCBs QBGF 1P 20A 240V 50/60Hz 1Ph QBGFEP1020
EATON CKT Ground Fault Circuit Interrupter Bolt On Miniature Circuit Breaker
4 results
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Siemens Molded Case Circuit Breaker, HED4 Series, 40A, 3 Pole, 480V AC, 42kA at 480V AC HED43B040
SIEMENS HED4 High Interrupting Bolt On Molded Case Circuit Breaker
30 results
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Industrial C & S Circuit Breaker, THQP Series, 20A, 1 Pole, 120/240V AC, 10kA at 120/240V AC THQP120
INDUSTRIAL C & S THQP Standard Plug In Circuit Breaker
10 results
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Ubi Circuit Breaker, UBIP Series, 15 to 20A, 2 Pole, 120V AC, 10kA UBIP1520
UBI UBIP Standard Bolt On Circuit Breaker
3 results
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Siemens Circuit Breaker, 30A, 1 Pole ITED130
Siemens

Circuit Breaker, 30A, 1 Pole

Zoro # G4598706
Mfr # ITED130
product price: 
$16.39
/ea
Siemens Miniature Circuit Breaker, BQH Series, 30A, 2 Pole, 240V AC, 10kA at 240V AC BQ2H030
SIEMENS BQH Standard Bolt On Miniature Circuit Breaker
3 results
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Industrial C & S Thermal Magnetic Circuit Breaker, THQL Series, 20A, 1 Pole, 120/240V AC, 10kA at 120/240V AC THQL1120GFTP
INDUSTRIAL C & S THQL Ground Fault Circuit Interrupter Plug In Circuit Breaker
2 results
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Te Connectivity Circuit Breaker, W6 Series, 25A, 2 Pole, 240/250/415V AC, 5kA at 277V AC 2-1393253-3
TE CONNECTIVITY W6 Magnetic Surface Mount/DIN Rail Circuit Breaker
7 results
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Eaton Molded Case Circuit Breaker, LG Series, 500A, 3 Pole, 600V AC, 65kA at 240V AC LGE3500FAG
EATON LG Standard Free Standing Molded Case Circuit Breaker
8 results
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Eaton Miniature Circuit Breakers MCBs BRHN115GF
EATON CB Ground Fault Circuit Interrupter Plug On Miniature Circuit Breaker
8 results
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Siemens Molded Case Circuit Breaker, JXD2-A Series, 225A, 3 Pole, 240V AC, 65kA at 240V AC JXD23B225
SIEMENS JXD2-A Standard Free Standing Molded Case Circuit Breaker
12 results
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Te Connectivity Circuit Breaker, W5 Series, 5A, 1 Pole, 250V AC, 1kA at 250V AC/50V DC 1423901-1
TE CONNECTIVITY W5 Thermal Surface Mount/DIN Rail Circuit Breaker
8 results
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Siemens Miniature Circuit Breaker, QP/MP Series, 15A, 1 Pole, 120/240V AC ITEQ115
SIEMENS QP/MP Standard Plug In Miniature Circuit Breaker
4 results
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Zinsco Circuit Breaker, Zinsco Series, 90A, 2 Pole, 120/240V AC, 10kA UBIZ290B
ZINSCO Zinsco Standard Bolt On Circuit Breaker
5 results
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Ge Molded Case Circuit Breaker, THED Series, 25A, 3 Pole, 600V AC, 18kA at 600V AC THED136025WL
GE THED Standard Plug In Molded Case Circuit Breaker
10 results
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Eaton Miniature Circuit Breakers MCBs BR 3P 25A 240V 50/60Hz 3Ph BR325
Eaton

Miniature Circuit Breakers MCBs BR 3P 25A 240V 50/60Hz 3Ph

Zoro # G914237780
Mfr # BR325
product price: 
$72.49
/ea
Schneider Electric Miniature Circuit Breaker, HOMT Series, 15 to 20A, 1 Pole, 120/240V AC, 10kA HOMT1520CP
Schneider Electric

Miniature Circuit Breaker, HOMT Series, 15 to 20A, 1 Pole, 120/240V AC, 10kA

Zoro # G2691321
Mfr # HOMT1520CP
product price: 
$24.55
/ea
Siemens Molded Case Circuit Breaker, HED4 Series, 25A, 3 Pole, 480V AC, 42kA at 480V AC HED43B025
SIEMENS HED4 Standard Bolt On Molded Case Circuit Breaker
12 results
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Eaton Circuit Breaker, CB Series, 20A, 1 Pole, 120/240V AC BR120AF
EATON BR Ground Fault Circuit Interrupter Plug On Circuit Breaker
3 results
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Ge Electric Circuit Breaker, THQL Series, 20A, 1 Pole, 120/240V AC, 10kA at 120/240V AC 6121933
GE ELECTRIC THQL Standard Plug In Circuit Breaker
4 results
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Eaton Molded Case Circuit Breaker, LD Series, 500A, 3 Pole, 600V AC, 65kA at 240V AC LD3500
EATON LD Standard Free Standing Molded Case Circuit Breaker
3 results
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Ge Miniature Circuit Breaker, THHQL Series, 20A, 1 Pole, 120/240V AC, 22kA at 120/240V AC THHQL1120AF2
GE THHQL Ground Fault Circuit Interrupter Plug In Miniature Circuit Breaker
2 results
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Eaton Molded Case Circuit Breaker, KD Series, 350A, 3 Pole, 600V AC, 65kA at 240V AC KD3350
EATON KD Standard Free Standing Molded Case Circuit Breaker
4 results
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Eaton Combination Circuit Breaker, BR Series, 15A, 1 Pole, 120V AC, 10kA BRP115AF
EATON BR Ground Fault Circuit Interrupter Plug In Combination Circuit Breaker
3 results
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Appleton Electric Circuit Breaker, AE Series, 70A, 2 Pole, 600V AC, 65kA at 240V AC AEEB22670C
APPLETON ELECTRIC AE Standard Bolt On Circuit Breaker
6 results
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Square D Circuit Breaker, QO Series, 20A, 1 Pole, 120V AC, 10kA at 120V AC 6562821
SQUARE D QO Ground Fault Circuit Interrupter Plug In Circuit Breaker
2 results
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Maxpower Miniature Circuit Breaker, HOMT Series, 15 to 20A, 1 Pole, 120/240V AC, 10kA MA947374
Maxpower

Miniature Circuit Breaker, HOMT Series, 15 to 20A, 1 Pole, 120/240V AC, 10kA

Zoro # G603896687
Mfr # MA947374
product price: 
$47.89
/ea
Maxpower Miniature Circuit Breaker, QO Series, 20A, 2x1 Pole, 120/240V AC, 10kA at 120/240V AC MA421269
Maxpower

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

Zoro # G009788234
Mfr # MA421269
product price: 
$146.99
/ea
Eaton Molded Case Circuit Breaker, HKD Series, 400A, 3 Pole, 600V AC, 100kA at 240V AC HKD3400
EATON HKD Standard Free Standing Molded Case Circuit Breaker
3 results
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Te Connectivity Circuit Breaker, W2 Series, 3A, 1 Pole, 250V AC, 1kA at 250V AC/32V DC 4-1393250-5
TE CONNECTIVITY W2 Thermal Surface Mount/DIN Rail Circuit Breaker
5 results
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Schneider Electric Miniature Circuit Breaker, QO Series, 15 to 20A, 1x1, 1x1 Pole, 120/240V AC, 10kA at 120/240V AC QOT1520CP
Schneider Electric

Miniature Circuit Breaker, QO Series, 15 to 20A, 1x1, 1x1 Pole, 120/240V AC, 10kA at 120/240V AC

Zoro # G9451621
Mfr # QOT1520CP
product price: 
$37.19
/ea
Schneider Electric Circuit Breaker, HOM Series, 20A, 2 Pole, 120/240V AC, 10kA 3205580
SCHNEIDER ELECTRIC HOMELINE Standard Plug In Circuit Breaker
2 results
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Ubi Circuit Breaker, UBIA Series, 60A, 2 Pole, 120/240V AC, 10kA UBIA260NI
UBI UBIA Standard Plug In Circuit Breaker
2 results
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Maxpower Circuit Breaker, HOM Series, 15A, 1 Pole, 120V AC, 10kA MA430214
Maxpower

Circuit Breaker, HOM Series, 15A, 1 Pole, 120V AC, 10kA

Zoro # G104004826
Mfr # MA430214
product price: 
$111.99
/ea
Schneider Electric Miniature Circuit Breaker, QO Series, 45A, 2 Pole, 120/240V AC, 10kA at 120/240V AC QO245CP
Schneider Electric

Miniature Circuit Breaker, QO Series, 45A, 2 Pole, 120/240V AC, 10kA at 120/240V AC

Zoro # G103900396
Mfr # QO245CP
product price: 
$55.15
/ea
Soundwave Circuit Breaker, BR Series, 30A, 2 Pole, 120/240V AC, 10kA SO435482
Soundwave

Circuit Breaker, BR Series, 30A, 2 Pole, 120/240V AC, 10kA

Zoro # G609845184
Mfr # SO435482
product price: 
$67.95
/ea
Circuit Breakers (245 items) - Page 5
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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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