Energy » Circuit Breakers » Molded Case Circuit Breakers (MCCB)

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Used Molded Case Circuit Breakers (Mccb)

  • Trusted Seller
    Siemens Circuit Breaker

    Siemens Circuit Breaker

    • Manufacturer: Siemens
    • Model: JXD

    Name: Circuit Breaker | Arrival date: 08-05-2025 | Dimensions l x w x h (inches): 12 x 16 x 9 | Weight (lb.): 8 | Available quantity: 1

    $170 USD
    Euclid, OH
  • Trusted Seller
    Siemens Circuit Breaker

    Siemens Circuit Breaker

    • Manufacturer: Siemens
    • Model: JXD

    Name: Circuit Breaker | Arrival date: 08-05-2025 | Dimensions l x w x h (inches): 8 x 15 x 7 | Weight (lb.): 20 | Available quantity: 1

    $170 USD
    Euclid, OH
  • Trusted Seller
    Moeller Molded Case Circuit Breaker.

    Moeller Molded Case Circuit Breaker.

    • Manufacturer: Klöckner Moeller

    New, Open Box Name: Molded Case Circuit Breaker. | Arrival date: 09-11-2025 | Dimensions l x w x h (inches): 11 x 9 x 7 | Electrical: 200AMP | Weight (lb.): 7 | Available quantity: 1

    $679 USD
    Euclid, OH
  • Trusted Seller
    Siemens Molded Case Circuit Breaker

    Siemens Molded Case Circuit Breaker

    • Manufacturer: Siemens

    New Open Box Name: Molded Case Circuit Breaker | Arrival date: 07-30-2025 | Dimensions l x w x h (inches): 7 x 7 x 7 | Electrical: 50/60Hz | Weight (lb.): 7 | Available quantity: 1

    $260 USD
    Euclid, OH
  • Trusted Seller
    Square D Molded Case Circuit

    Square D Molded Case Circuit Breaker

    • Manufacturer: Square D

    New Open Box Name: Molded Case Circuit Breaker | Arrival date: 08-11-2025 | Dimensions l x w x h (inches): 11 x 9 x 7 | Electrical: 3PH, 45A, 480VAC | Weight (lb.): 5 | Available quantity: 1

    $432 USD
    Euclid, OH
  • Trusted Seller
    Allen Bradley Molded Case Circuit

    Allen Bradley Molded Case Circuit Breaker

    • Manufacturer: Allen-Bradley
    • Model: 140G

    New Open Box Name: Molded Case Circuit Breaker | Arrival date: 04-15-2025 | Dimensions l x w x h (inches): 9 x 9 x 9 | Electrical: 15A, 400A, 480V | Weight (lb.): 9 | Available quantity: 1

    $100 USD
    Euclid, OH
  • Trusted Seller
    Allen Bradley Molded Case Circuit

    Allen Bradley Molded Case Circuit Breaker

    • Manufacturer: Allen-Bradley

    New Open Box Name: Molded Case Circuit Breaker | Arrival date: 04-23-2025 | Dimensions l x w x h (inches): 7 x 7 x 7 | Electrical: 20A, | Weight (lb.): 8 | Available quantity: 1

    $241 USD
    Euclid, OH
  • Trusted Seller
    Eaton RDC320T33W 3p 2000a Amp

    Eaton RDC320T33W 3p 2000a Amp 600v-ac Molded Case Circuit Breaker

    • Manufacturer: Eaton

    “New without Factory Packaging” Model number: RDC320T33W | # poles: 3P | Current: 2000 A AMP | Voltage (ac): 600 V-AC | Mpn: RDC320T33W | Shipping weight: 124 lbs | Shipping dimensions: 25 x 24 x 22 in | Referenc...

    $13,993 USD
    Delta, OH
  • Trusted Seller
    Eaton LD3600WK Molded Case Circuit

    Eaton LD3600WK Molded Case Circuit Breaker 3p 600a Amp 600v-ac

    • Manufacturer: Eaton

    “New without Factory Packaging” Model number: LD3600WK | # poles: 3P | Current: 600 A AMP | Voltage (ac): 600 V-AC | Mpn: LD3600WK | Shipping weight: 22 lbs | Shipping dimensions: 16 x 14 x 11 in | Reference sku:...

    $5,098 USD
    Delta, OH
  • Trusted Seller
    Eaton HMCP600Y6W Molded Case Circuit

    Eaton HMCP600Y6W Molded Case Circuit Breaker 600a Amp 600v-ac 3p

    • Manufacturer: Eaton

    “New without Factory Packaging” Model number: HMCP600Y6W | Current: 600 A AMP | Voltage (ac): 600 V-AC | # poles: 3P | Mpn: HMCP600Y6W | Shipping weight: 23 lbs | Shipping dimensions: 16 x 14 x 11 in | Reference ...

    $5,583 USD
    Delta, OH
  • Trusted Seller
    Square D MGL36800E10 Molded Case

    Square D MGL36800E10 Molded Case Circuit Breaker 3p 800a Amp 600v-ac

    • Manufacturer: Square D

    “SHELF WEAR” Model number: MGL36800E10 | # poles: 3P | Current: 800 A AMP | Voltage (ac): 600 V-AC | Mpn: MGL36800E10 | Shipping weight: 28.4 lbs | Shipping dimensions: 16 x 12 x 11 in | Additional notes: SHELF W...

    $5,005 USD
    Delta, OH
  • Trusted Seller
    Merlin Gerin CM1250HH Molded Case

    Merlin Gerin CM1250HH Molded Case Circuit Breaker 1250a Amp 600v-ac 3p

    • Manufacturer: Merlin Gerin

    “Used” Model number: CM1250HH | Current: 1250 A AMP | Voltage (ac): 600 V-AC | # poles: 3P | Mpn: CM1250HH | Shipping weight: 110 lbs | Shipping dimensions: 21 x 20 x 20 in | Reference sku: 1725486

    $12,443 USD
    Delta, OH
  • Trusted Seller
    Square D PLM34120CU44A Powerpact Circuit

    Square D PLM34120CU44A Powerpact Circuit Breaker 1200a Amp 240/480v-ac 3p

    • Manufacturer: Square D
    • Model: PLM34120CU44A

    “Used” Model number: PLM34120CU44A | Current: 1200 A AMP | Voltage (ac): 240 V-AC, 480 V-AC | # poles: 3P | Model line: POWERPACT | Mpn: PLM34120CU44A | Shipping weight: 34 lbs | Shipping dimensions: 18 x 11 x 11...

    $5,432 USD
    Delta, OH
  • Trusted Seller
    Square D LAL3640036M Molded Case

    Square D LAL3640036M Molded Case Circuit Breaker 3p 600v-ac 400a Amp

    • Manufacturer: Square D
    • Model: LAL3640036M

    “New without Factory Packaging” Model number: LAL3640036M | Current: 400 A AMP | Voltage (ac): 600 V-AC | # poles: 3P | Mpn: LAL3640036M | Shipping weight: 19.2 lbs | Shipping dimensions: 21 x 15 x 12 in | Refere...

    $5,428 USD
    Delta, OH
  • Trusted Seller
    Square D LAL3640036M Molded Case

    Square D LAL3640036M Molded Case Circuit Breaker 400a Amp 600v-ac 3p

    • Manufacturer: Square D
    • Model: LAL3640036M

    “New without Factory Packaging” Model number: LAL3640036M | Current: 400 A AMP | Voltage (ac): 600 V-AC | # poles: 3P | Mpn: LAL3640036M | Shipping weight: 17 lbs | Shipping dimensions: 14 x 9 x 8 in | Reference ...

    $5,890 USD
    Delta, OH
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Overview

Circuit breakers are essential safety devices that protect electrical circuits from damage caused by overloads or short circuits. They automatically interrupt the flow of electricity when a fault is detected, preventing potential fires and equipment damage. Circuit breakers are used in residential, commercial, and industrial settings to ensure electrical safety and reliability.

FAQ

What should I consider when buying a used circuit breaker?

Check the breaker’s amperage rating, compatibility with your electrical system, and overall condition. Ensure it has been tested and certified for safety.

How do I ensure the circuit breaker is shipped safely to my location?

Use a transport service that specializes in delicate electrical components. Ensure the breaker is well-packaged and cushioned to prevent damage during transit.

What is the maintenance schedule for a circuit breaker?

Regular maintenance includes visual inspections for signs of wear or damage, testing for proper operation, and cleaning any dust or debris from the breaker. Consult the manufacturer’s manual for detailed maintenance intervals.