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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 (246 items) - Page 4

Ge Molded Case Circuit Breaker, THQL Series, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC THQL2130HID
GE THQL High Interrupting Plug In Molded Case Circuit Breaker
6 results
table view View Items
Schneider Electric IEC Supplementary Protector, GFP Series, 63 A, 4 Pole, 240V AC, 1.5kA at 240V AC, A Curve M9R81463
SCHNEIDER ELECTRIC MULTI9 Low Voltage Clip On IEC Supplementary Protector
17 results
table view View Items
Dayton Circuit Breaker, NDB2-63 B2/2 Series, 2A, 2 Pole, 480V AC, 7.5kA at 480V AC, B Curve 5ZUX1
Dayton

Circuit Breaker, NDB2-63 B2/2 Series, 2A, 2 Pole, 480V AC, 7.5kA at 480V AC, B Curve

Zoro # G3302756
Mfr # 5ZUX1
product price:  $48.29
/ea
Ge Miniature Circuit Breaker, THHQL Series, 30A, 3 Pole, 240V AC, 22kA at 240V AC THHQL32030
GE THHQL High Interrupting Plug In Miniature Circuit Breaker
11 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:  $68.89
/ea
Eaton Miniature Circuit Breaker, CB Series, 40A, 3 Pole, 240V AC BR340
EATON CB Miniture Circuit Breaker Plug On Miniature Circuit Breaker
36 results
table view View Items
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:  $26.39
/ea
Eaton Miniature Circuit Breakers MCBs BR 2P 100A 240V 50/60Hz 1Ph Shunt Trip BR2100ST
Eaton

Miniature Circuit Breakers MCBs BR 2P 100A 240V 50/60Hz 1Ph Shunt Trip

Zoro # G714236600
Mfr # BR2100ST
product price:  $151.99
/ea
Ubi Circuit Breaker, UBIZ Series, 80A, 2 Pole, 120/240V AC, 10kA UBIZ280
UBI UBIZ Magnetic Plug In Circuit Breaker
9 results
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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, FD Series, 125A, 3 Pole, 600V AC, 65kA at 240/277V AC FD3125
EATON FD Standard Free Standing Molded Case Circuit Breaker
31 results
table view View Items
Ge Molded Case Circuit Breaker, TEYH Series, 70A, 3 Pole, 277/480V AC, 35kA at 277/480V AC TEYH3070B
GE TEYH Standard Bolt On Molded Case Circuit Breaker
31 results
table view View Items
Ge Molded Case Circuit Breaker, TEYD Series, 35A, 3 Pole, 277/480V AC, 25kA at 277/480V AC TEYD3035B
GE TEYD Standard Bolt On Molded Case Circuit Breaker
35 results
table view View Items
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
table view View Items
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
table view View Items
Maxpower Circuit Breaker, QO Series, 40A, 2 Pole, 120/240V AC, 10kA at 120/240V AC MA421270
MAXPOWER QO Standard Plug In Circuit Breaker
4 results
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Schneider Electric Circuit Breaker, QO Series, 15A, 2 Pole, 120/240V AC, 10kA at 120/240V AC 3062387
SCHNEIDER ELECTRIC QO Standard Plug In Circuit Breaker
2 results
table view View Items
Square D Miniature Circuit Breaker, E FRAME Series, 20A, 3 Pole, 277/480V AC, 25kA at 120V AC EDB34020SA
SQUARE D E FRAME Shunt Trip Bolt On Miniature Circuit Breaker
22 results
table view View Items
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
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
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Siemens Molded Case Circuit Breaker, ED2 Series, 35A, 2 Pole, 240V AC, 10kA at 240V AC ED22B035
SIEMENS ED2 Standard Bolt On Molded Case Circuit Breaker
31 results
table view View Items
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
table view View Items
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
table view View Items
Eaton Circuit Breaker, FAZ Series, 4A, 1 Pole, 277/480V AC, 15kA at 240/415V AC, B Curve FAZ-B4/1-SP
EATON FAZ Supplementary Protector Surface Mount/DIN Rail Circuit Breaker
2 results
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Eaton Molded Case Circuit Breaker, ED Series, 200A, 3 Pole, 240V AC, 65kA at 240V AC ED3200
EATON ED Standard Free Standing Molded Case Circuit Breaker
7 results
table view View Items
Connecticut Electric Miniature Circuit Breaker, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC UBIZ230-1
Connecticut Electric

Miniature Circuit Breaker, 30A, 2 Pole, 120/240V AC, 10kA at 120/240V AC

Zoro # G312485943
Mfr # UBIZ230-1
product price:  $71.59
/ea
Square D Miniature Circuit Breaker, QO Series, 20A, 2 Pole, 120/240V AC, 10kA at 120/240V AC, B Curve QOB220EPD
SQUARE D QO Ground Fault Protecting Class B 30 mA Bolt On Miniature Circuit Breaker
15 results
table view View Items
Te Connectivity Circuit Breaker, W2 Series, 15A, 1 Pole, 240V AC, 1kA at 120V AC/50V DC 6-1393246-6
TE CONNECTIVITY W2 Thermal Surface Mount/DIN Rail Circuit Breaker
5 results
table view View Items
Eaton Miniature Circuit Breakers MCBs QPH 1P 20A 240V 50/60Hz 1Ph QPHGFEP1020
EATON CB Ground Fault Circuit Interrupter Plug On Miniature Circuit Breaker
8 results
table view View Items
Siemens Molded Case Circuit Breaker, HED4 Series, 80A, 1 Pole, 277V AC, 25kA at 277V AC HED41B080
SIEMENS HED4 High Interrupting Bolt On Molded Case Circuit Breaker
30 results
table view View Items
Ge Molded Case Circuit Breaker, FBN Series, 15A, 2 Pole, 347/600V AC, 65kA at 480V AC FBN26TE015R
GE FBN Standard Free Standing Molded Case Circuit Breaker
39 results
table view View Items
Ge Miniature Circuit Breaker, THHQC Series, 40A, 1 Pole, 120/240V AC, 22kA at 120/240V AC THHQC1140WL
GE THHQC Standard Surface Mount/DIN Rail Miniature Circuit Breaker
17 results
table view View Items
Siemens Miniature Circuit Breaker, BL Series, 60A, 2 Pole, 120/240V AC, 22kA at 120/240V AC B260H00S01
SIEMENS BL Shunt Trip Bolt On Miniature Circuit Breaker
86 results
table view View Items
Maxpower Miniature Circuit Breaker, HOM Series, 30A, 2 Pole, 120/240V AC, 10kA MA837888
Maxpower

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

Zoro # G703921029
Mfr # MA837888
product price:  $39.35
/ea
Eaton Molded Case Circuit Breaker, LG Series, 500A, 3 Pole, 600V AC, 100kA at 480V AC LGH3500FAG
EATON LG Standard Free Standing Molded Case Circuit Breaker
8 results
table view View Items
Zinsco Circuit Breaker, Zinsco Series, 80A, 2 Pole, 120/240V AC, 10kA UBIZ280B
ZINSCO Zinsco Standard Bolt On Circuit Breaker
5 results
table view View Items
Circuit Breakers (246 items) - Page 4
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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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circuit breakers &c series circuit breaker90 amp breakermolded case breakereaton 200 amp breaker

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