Shop by Category

  • Challenger
  • Circuit Breakers
  • Bus Plug
  • Motor Control
  • Switches
  • Accessories and Parts

    • Shop by Brand

  • Eaton
  • Square D
  • General Electric
  • Cutler Hammer
  • Siemens
  • Schneider Electric
  • Westinghouse
  • Merlin Gerin
  • ITE
  • Pringle
  • View all Brands

    • Zinsco

    • QB243040
      Quick view

      QB243040

      Zinsco QB243040 Molded Case Circuit Breaker. Family QB; Type QB; 240 Voltage; 3 Pole; 3 Phase; 40 Amp; 10kA@240V AIC; Bolt-On Mounting.

      Amperage: 40
      Family: QB
      Trip Functions: LI
      Poles: 3
      Voltage: 240
      AIC: 10kA@240V
      Mount Type: Bolt-On
      RFQ
      View Details
    Compare Selected