Circuit Breakers

Electrical Breaker Panel & Circuit Breaker Panels

Quality Switchgear sells and repairs electrical breaker panels of many types. If you need your circuit breaker components new, rebuilt, or refurbished, we can sell you the parts you need, when you need them. We understand how crucial circuit breaker panels can be and how time sensitive these parts are.

When a machine in a plant breaks down, you need reliable components that ship quickly. We are available for service 24 hours a day, seven days a week. Let us know how we can help and how fast you need your electrical breaker panel order, and we will make it happen.

  • MDN640 MDN640

    MDN640

    Cutler Hammer MDN640 Insulated Case Circuit Breaker. Family Magnum DS; Type MDN; 3 Pole; 3 Phase; 4000 Amp; 65kA@508V AIC; Bolt-On Mounting. Eaton's Magnum DS Low Voltage Power Circuit Breakers offer the highest ANSI interrupting and withstand ratings...

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LI
    Poles: 3
    Type: MDN
    AIC: 65kA@480V
    Mount Type: Bolt-On
  • MDN840 MDN840

    MDN840

    Cutler Hammer MDN840 Insulated Case Circuit Breaker. Family Magnum DS; Type MDN; 3 Pole; 3 Phase; 4000 Amp; 85kA@508V AIC; Bolt-On Mounting. Eaton's Magnum DS Low Voltage Power Circuit Breakers offer the highest ANSI interrupting and withstand ratings...

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LI
    Poles: 3
    Type: MDN
    AIC: 85kA@480V
    Mount Type: Bolt-On
  • MDNC40 MDNC40, front

    MDNC40

    Cutler Hammer MDNC40 Insulated Case Circuit Breaker. Family Magnum DS; Type MDNC; 3 Pole; 3 Phase; 4000 Amp; 100kA@480V AIC; Bolt-On Mounting. Eaton's Magnum DS Low Voltage Power Circuit Breakers offer the highest ANSI interrupting and withstand ratings...

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LI
    Poles: 3
    Type: MDNC
    AIC: 100kA@480V
    Mount Type: Bolt-On
  • MDNC4N MDNC4N, front

    MDNC4N

    Cutler Hammer MDNC40 Insulated Case Circuit Breaker. Family Magnum DS; Type MDNC; 3 Pole; 3 Phase; 4000 Amp; 65kA@600V AIC; Bolt-On Mounting. Eaton's Magnum DS Low Voltage Power Circuit Breakers offer the highest ANSI interrupting and withstand ratings...

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LI
    Poles: 3
    Type: MDNC
    AIC: 65kA@600V
    Mount Type: Draw-Out
  • MDNC4N3LEA MDNC4N3LEA, front

    MDNC4N3LEA

    Cutler Hammer MDNC40 Insulated Case Circuit Breaker. Family Magnum DS; Type MDNC; 3 Pole; 3 Phase; 4000 Amp; 65kA@600V AIC; Bolt-On Mounting. Eaton's Magnum DS Low Voltage Power Circuit Breakers offer the highest ANSI interrupting and withstand ratings...

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LI
    Poles: 3
    Type: MDNC
    AIC: 65kA@600V
    Mount Type: Draw-Out
  • MDS840 MDS840

    MDS840

    Cutler Hammer MDS840 Insulated Case Circuit Breaker. Family Magnum DS; Type MDS; 3 Pole; 3 Phase; 4000 Amp; 85kA@508V AIC; Bolt-On Mounting. Eaton's Magnum DS Low Voltage Power Circuit Breakers offer the highest ANSI interrupting and withstand ratings...

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LI
    Poles: 3
    Type: MDS
    AIC: 85kA@480V
    Mount Type: Bolt-On
  • MDS8403WEA401GANAN6YNNNAX MDS8403WEA401GANAN6YNNNAX

    MDS8403WEA401GANAN6YNNNAX

    Cutler Hammer MDS8403WEA401GANAN6YNNNAX Insulated Case Circuit Breaker. Family Magnum DS; Type MDS; 3 Pole; 3 Phase; 4000 Amp; 85kA@480V AIC; Draw-Out Mounting.

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LSIG
    Poles: 3
    Type: MDS
    AIC: 85kA@480V
    Mount Type: Draw-Out
  • MDS8403WEA4052ANAN4YHANAX MDS8403WEA4052ANAN4YHANAX

    MDS8403WEA4052ANAN4YHANAX

    Cutler Hammer MDS8403WEA4052ANAN4YHANAX Insulated Case Circuit Breaker. Family Magnum DS; Type MDS; 3 Pole; 3 Phase; 4000 Amp; 85kA@480V AIC; Draw-Out Mounting.

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LSI
    Poles: 3
    Type: MDS
    AIC: 85kA@480V
    Mount Type: Draw-Out
  • MDS84N MDS84N, front

    MDS84N

    Cutler Hammer MDS84N Insulated Case Circuit Breaker. Family Magnum DS; Type MDS; 3 Pole; 3 Phase; 4000 Amp; 85kA@508V AIC; Bolt-On Mounting. Eaton's Magnum DS Low Voltage Power Circuit Breakers offer the highest ANSI interrupting and withstand ratings...

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LI
    Poles: 3
    Type: MDS
    AIC: 85kA@480V
    Mount Type: Bolt-On
  • MDSC40

    MDSC40

    Cutler Hammer MDSC40 Insulated Case Circuit Breaker. Family Magnum DS; Type MDSC; 3 Pole; 3 Phase; 4000 Amp; 100kA@508V AIC; Bolt-On Mounting. Eaton's Magnum DS Low Voltage Power Circuit Breakers offer the highest ANSI interrupting and withstand ratings...

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LI
    Poles: 3
    Type: MDSC
    AIC: 100kA@480V
    Mount Type: Bolt-On
  • MDSC4N MDSC4N

    MDSC4N

    Cutler Hammer MDSC4N Insulated Case Circuit Breaker. Family Magnum DS; Type MDS; 3 Pole; 3 Phase; 4000 Amp; 100kA@600V AIC; Draw our or Fixed mounted avaialable. We have several new in stock! Eaton's Magnum DS Low Voltage Power Circuit Breakers offer...

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LSIG
    Poles: 3
    Type: MDSC
    AIC: 100kA@480V
    Mount Type: Bolt-On / Draw-Out
  • MDSX40

    MDSX40

    Cutler Hammer MDSX40 Insulated Case Circuit Breaker. Family Magnum DS; Type MDSX; 3 Pole; 3 Phase; 4000 Amp; 200kA@508V AIC; Bolt-On Mounting. Eaton's Magnum DS Low Voltage Power Circuit Breakers offer the highest ANSI interrupting and withstand ratings...

    Amperage: 4000
    Family: Magnum DS
    Trip Functions: LI
    Poles: 3
    Type: MDSX
    AIC: 200kA@480V
    Mount Type: Bolt-On