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Used Molded Case Circuit Breakers (Mccb) in Missouri, USA

  • Trusted Seller
    Square D EDB34025 Circuit Breaker

    Square D EDB34025 Circuit Breaker

    • Manufacturer: Square D

    “New - Never Used - Open Box” The Square D EDB34025 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 25 Amps and a voltage rating of 480Y/277VAC, 125VDC. It has an interrupting ra...

    $250 USD
    Latham, MO
  • Trusted Seller
    Square D EDB34025 Circuit Breaker

    Square D EDB34025 Circuit Breaker

    • Manufacturer: Square D

    “New - Never Used - Open Box” The Square D EDB34025 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 25 Amps and a voltage rating of 480Y/277VAC, 125VDC. It has an interrupting ra...

    $250 USD
    Latham, MO
  • Trusted Seller
    EDB36015 Square D 3 Pole

    EDB36015 Square D 3 Pole Circuit Breaker

    • Manufacturer: Square D

    “Open box - never used Brand new” The Square D EDB36015 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 15 Amps and a voltage rating of 600Y/347VAC. It has an interrupting rating...

    $260 USD
    Latham, MO
  • Trusted Seller
    EDB36015 Square D 3 Pole

    EDB36015 Square D 3 Pole Circuit Breaker

    • Manufacturer: Square D

    “Open box - never used Brand new” The Square D EDB36015 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 15 Amps and a voltage rating of 600Y/347VAC. It has an interrupting rating...

    $260 USD
    Latham, MO
  • Trusted Seller
    Square D QO215 2-Pole 15A

    Square D QO215 2-Pole 15A Circuit Breaker

    • Manufacturer: Square D
    • Model: QO215

    “New open box, never used.” The Square D QO215 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 15 Amps and a voltage rating of 120/240VAC. It has an interrupting rating of 10kAIC...

    $27 USD
    Latham, MO
  • Trusted Seller
    Square D EDB26015 2 Pole

    Square D EDB26015 2 Pole 15 Amp 600V Circuit Breaker

    • Manufacturer: Square D

    “NEW - Never used” The Square D EDB26015 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 15 Amps and a voltage rating of 600Y/347VAC. It has an interrupting rating of 14kAIC at 6...

    $190 USD
    Latham, MO
  • Trusted Seller
    Square D EDB26015 2 Pole

    Square D EDB26015 2 Pole 15 Amp 600V Circuit Breaker

    • Manufacturer: Square D

    “NEW - Never used” The Square D EDB26015 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 15 Amps and a voltage rating of 600Y/347VAC. It has an interrupting rating of 14kAIC at 6...

    $190 USD
    Latham, MO
  • Trusted Seller
    Square D FH36030 Circuit Breaker

    Square D FH36030 Circuit Breaker 30 Amp 3 Pole 600 Vac

    • Manufacturer: Square D

    “Open boxNew - never used” The Square D FH36030 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 30 Amps and a voltage rating of 600VAC. It has an interrupting rating of 25kAIC at...

    $1,400 USD
    Latham, MO
  • Trusted Seller
    Square D FH36015 15 Amp

    Square D FH36015 15 Amp 600 Volt 3 Pole Circuit Breaker

    • Manufacturer: Square D

    “Open boxNew never used” The Square D FH36015 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 15 Amps and a voltage rating of 600VAC. It has an interrupting rating of 25kAIC at 4...

    $1,400 USD
    Latham, MO
  • Trusted Seller
    SQUARE D HGA36100 Circuit Breaker

    SQUARE D HGA36100 Circuit Breaker 100 A Amp 3 Pole 600V

    • Manufacturer: Square D

    “New - Open boxNever used!” The Square D HGA36100 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 100 Amps and a voltage rating of 600/690VAC. It has an interrupting rating of 35...

    $560 USD
    Latham, MO
  • Trusted Seller
    Square D EDB36020 Bolt-On Circuit

    Square D EDB36020 Bolt-On Circuit Breaker 20A 3P 600V Type EDB

    • Manufacturer: Square D

    “New - Open BoxNever been used” The Square D EDB36020 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 20 Amps and a voltage rating of 600Y/347VAC. It has an interrupting rating o...

    $260 USD
    Latham, MO
  • Trusted Seller
    QO120 Mini circuit breaker 20A,

    QO120 Mini circuit breaker 20A, 1 pole, 120/240VAC, 10kA, plug in

    • Manufacturer: QO

    “New!Never used, buy 10 get the box.” The Square D QO120 is a 1 Pole thermal magnetic molded case circuit breaker with a current rating of 20 Amps and a voltage rating of 120/240VAC. It has an interrupting rating...

    $12 USD
    Latham, MO
  • Trusted Seller
    QO115 Mini circuit breaker 15A,

    QO115 Mini circuit breaker 15A, 1 pole, 120/240VAC, 10kA, plug in

    • Manufacturer: Square D

    “New still in box.Sold individual or buy five get the box .” The Square D QO115 is a 1 Pole thermal magnetic molded case circuit breaker with a current rating of 15 Amps and a voltage rating of 120/240VAC. It has...

    $12 USD
    Latham, MO
  • Trusted Seller
    QO115 Mini circuit breaker 15A,

    QO115 Mini circuit breaker 15A, 1 pole, 120/240VAC, 10kA, plug in

    • Manufacturer: Square D

    “New still in box.Sold individual or buy five get the box .” The Square D QO115 is a 1 Pole thermal magnetic molded case circuit breaker with a current rating of 15 Amps and a voltage rating of 120/240VAC. It has...

    $12 USD
    Latham, MO
  • Trusted Seller
    Square D EDB36020 Bolt-On Circuit

    Square D EDB36020 Bolt-On Circuit Breaker 20A 3P 600V Type EDB

    • Manufacturer: Square D

    “New - Open BoxNever been used” The Square D EDB36020 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 20 Amps and a voltage rating of 600Y/347VAC. It has an interrupting rating o...

    $260 USD
    Latham, MO
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Overview

Molded case circuit breakers (MCCBs) are low-voltage protection devices that interrupt overloads and short circuits. They combine a molded insulating case with adjustable thermal-magnetic or electronic trip units, offering broad ampere ranges and high interrupting capacity. MCCBs are used in industrial panels, motor control and building distribution where precise trip settings and fault tolerance are required. Selection depends on frame size, trip type, voltage rating and interrupting capacity (kA).

FAQ

What should I consider when buying a used MCCB?

Check ampere rating, interrupting capacity (kA), trip unit type (thermal‑magnetic or electronic), frame vs. trip rating, physical condition, signs of overheating or corrosion, service history, and compatibility with your panel bus and standards.

How do I ensure an MCCB is shipped safely?

De‑energize and tag the breaker, protect and cap terminals, pack in a sturdy crate or pallet with moisture protection, immobilize the unit, use a carrier experienced with electrical equipment and insure the shipment.

What is a practical maintenance schedule for an MCCB?

Perform visual inspections monthly/quarterly, clean dust, torque terminals after installation, exercise trip mechanism and perform trip tests annually or per manufacturer, and run insulation/thermal checks yearly.