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

Circuit Breakers (22,500+ items) - Page 276

Siemens

Circuit breaker size S00 for motor protection CLASS 10 A-release 2.2.3.2

Zoro # G615867439
Mfr # 3RV2011-1DA25
product price: $69.19
/ea
Sold in mult. of 4 for $276.76
Siemens

circuit breaker 3VA6 UL Frame 250 breaking capacity class M 35 kA At

Zoro # G815861343
Mfr # 3VA6225-5HM31-0AA0
product price: $1,533.99
/ea
Siemens

circuit breaker 3VA6 UL Frame 250 breaking capacity class M 35 kA At

Zoro # G815859005
Mfr # 3VA6210-5JP31-2AA0
product price: $1,968.99
/ea
Noark

Miniature Circuit Breaker, B1N Series, 16A, 3 Pole, 240V AC, 10kA at 240V AC, C Curve

Zoro # G7161255
Mfr # B1N3C16
product price: $73.79
/ea
Siemens

circuit breaker 3VA6 UL Frame 600 breaking capacity class M 35 kA At

Zoro # G915863353
Mfr # 3VA6460-5HM41-0AA0
product price: $3,190.99
/ea
Siemens

circuit breaker 3VA1 IEC Frame 160 breaking capacity class S Icu=36 kA

Zoro # G915856928
Mfr # 3VA1110-4EF46-0AA0
product price: $384.99
/ea
Siemens

MCCB 40C 2P 200A FX-TRIP N/LUG

Zoro # G915486323
Mfr # JXD62B200
product price: $8,748.99
/ea
Siemens

Circuit breaker size S0 for motor protection CLASS 10 A-release 11.16 A

Zoro # G815277212
Mfr # 3RV2023-4AA10
product price: $77.35
/ea
Sold in mult. of 4 for $309.40
Siemens

circuit breaker 3VA6 UL Frame 150 breaking capacity class M 35 kA At

Zoro # G915858892
Mfr # 3VA6110-5KP31-0AA0
product price: $1,443.99
/ea
Noark

Molded Case Circuit Breaker, B1E Series, 5A, 2 Pole, 480V AC, 5kA at 480V AC, D Curve

Zoro # G7030145
Mfr # B1E2D5
product price: $38.89
/ea
Sold in mult. of 2 for $77.78
Phoenix Contact

CB TM1 5A SFB P Thermomagnetic device

Zoro # G815442153
Mfr # 2800840
product price: $70.49
/ea
Connecticut Electric

Circuit Breaker, QD Series, 30A, 2 Pole, 10kA

Zoro # G905641862
Mfr # VPKD230
product price: $48.89
/ea
Connecticut Electric

Circuit Breaker, QP Series, 45A, 2 Pole, 120/240V AC, 10kA

Zoro # G705641680
Mfr # ITEQ245
product price: $30.15
/ea
Siemens

circuit breaker 3VA6 UL Frame 600 breaking capacity class L 150 kA At

Zoro # G615862823
Mfr # 3VA6440-8KL31-2AA0
product price: $4,254.99
/ea
Noark

Molded Case Circuit Breaker, B1H Series, 8A, 3 Pole, 480V AC, 10kA at 480V AC/125V DC, D Curve

Zoro # G7163687
Mfr # B1H3D8
product price: $90.29
/ea
Siemens

circuit breaker 3VA1 IEC Frame 1000 breaking capacity class M Icu=55

Zoro # G915859905
Mfr # 3VA1580-5EF32-0AA0
product price: $1,919.99
/ea
Siemens

Residual current operated circuit breaker 4-pole

Zoro # G615868313
Mfr # 5SV3646-8
product price: $173.99
/ea
Sold in mult. of 2 for $347.98
Siemens

circuit breaker 3VA6 UL Frame 150 breaking capacity class M 35 kA At

Zoro # G715860682
Mfr # 3VA6115-5JT31-0AA0
product price: $1,519.99
/ea
Siemens

circuit breaker 3VA6 UL Frame 150 breaking capacity class H 65 kA At

Zoro # G915855563
Mfr # 3VA6140-6JQ41-2AA0
product price: $1,647.99
/ea
Siemens

MCCB 45A 3P 480 VAC W/LI-LO LUGS

Zoro # G815486546
Mfr # ED43B045L
product price: $2,148.99
/ea
Noark

Miniature Circuit Breaker, 63A, 2 Pole, 120V AC

Zoro # G7032559
Mfr # B1NQ2B63T
product price: $59.95
/ea
Sold in mult. of 2 for $119.90
Siemens

circuit breaker 3VA6 UL Frame 150 breaking capacity class L 150 kA At

Zoro # G915860024
Mfr # 3VA6110-8JQ41-0AA0
product price: $1,968.99
/ea
Noark

Miniature Circuit Breaker, B1NQ Series, 15A, 2 Pole, 120/240V AC, 10kA at 120/240V AC, C Curve

Zoro # G7032017
Mfr # B1NQ2C15
product price: $67.15
/ea
Sold in mult. of 2 for $134.30
Siemens

circuit breaker 3VA6 UL Frame 150 breaking capacity class C 100 kA At

Zoro # G715856845
Mfr # 3VA6140-7JT41-0AA0
product price: $1,436.99
/ea
Siemens

circuit breaker 3VA6 UL Frame 250 breaking capacity class C 100 kA At

Zoro # G715862617
Mfr # 3VA6225-7JQ31-0AA0
product price: $2,396.99
/ea
Siemens

Circuit breaker size S00 for motor protection CLASS 10 A-release 3.5.5 A

Zoro # G815867932
Mfr # 3RV1011-1FA10
product price: $84.65
/ea
Sold in mult. of 4 for $338.60
Siemens

BREAKER 30A 1P 120V 10K 50C BQ MARINE

Zoro # G715263940
Mfr # BQ1M030
product price: $99.89
/ea
Awesome Audio

HOM130C 1 in. 230 A - 1- Pole Miniature Circuit Breaker

Zoro # G911958220
Mfr # AW3319569
product price: $27.25
/ea
Siemens

circuit breaker 3VA6 UL Frame 150 breaking capacity class H 65 kA At

Zoro # G615863226
Mfr # 3VA6140-6HN31-0AA0
product price: $698.99
/ea
Potter-Brumfield

W33-S2N1Q-20=W33

Zoro # G800969283
Mfr # W33-S2N1Q-20
product price: $90.99
/ea
Siemens

circuit breaker 3VA6 UL Frame 600 breaking capacity class L 150 kA At

Zoro # G715863157
Mfr # 3VA6440-8KQ31-2AA0
product price: $4,572.99
/ea
Noark

Miniature Circuit Breaker, B1E Series, 35A, 2 Pole, 480V AC, 5kA at 480V AC, C Curve

Zoro # G7162077
Mfr # B1E2C35
product price: $39.79
/ea
Sold in mult. of 2 for $79.58
Noark

Miniature Circuit Breaker, B1N Series, 10A, 3 Pole, 240V AC, 10kA at 240V AC, C Curve

Zoro # G7029549
Mfr # B1N3C10
product price: $74.39
/ea
Noark

Molded Case Circuit Breaker, B1H Series, 13A, 2 Pole, 480V AC, 10kA at 480V AC/125V DC, D Curve

Zoro # G7163303
Mfr # B1H2D13
product price: $61.19
/ea
Noark

Miniature Circuit Breaker, B1E Series, 15A, 3 Pole, 480V AC, 5kA at 480V AC, C Curve

Zoro # G7162296
Mfr # B1E3C15
product price: $57.35
/ea
Siemens

circuit breaker 3VA6 UL Frame 250 breaking capacity class L 150 kA At

Zoro # G715863348
Mfr # 3VA6225-8JT41-0AA0
product price: $2,866.99
/ea
Circuit Breakers (22,500+ items) - Page 276
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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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