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Cutler Hammer LSB220400E - 2-Pole 400A Molded Case Breaker

Cutler Hammer
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Cutler Hammer LSB220400E is a 2-pole molded case circuit breaker from the LSB Series, designed for thermal magnetic overcurrent protection in industrial applications. It is rated for 240V AC, 400A continuous current, and provides LI (Long-Time and Instantaneous) trip functions to safeguard electrical circuits from overloads and short circuits. This bolt-on breaker weighs 20 lb and features a compact molded case construction for secure panel mounting, though lugs are not included for field wiring. It complies with industry standards for single-phase systems, offering a 42kA interrupting capacity at 240V to handle high fault currents. Typical applications include main or feeder protection in commercial and industrial power distribution panels, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 400A
  • Poles: 2
  • Connection: Bolt-On
  • AIC Rating: 42kA@240V
  • Phase: 1
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 20 lb
  • Additional Info: Lugs are not included