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Westinghouse KB3090 - 90A 3-Pole Molded Case Circuit Breaker (600V)

Westinghouse
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Westinghouse KB3090 Molded Case Circuit Breaker is a 3-pole, 90A thermal-magnetic device designed for overcurrent protection in industrial power distribution systems. It is rated for 600V AC, 3-phase operation with an interrupting capacity of 22kA at 480V, providing both long-time and instantaneous (LI) trip functions. The unit features a bolt-on connection, weighs 19 lb, and is part of the AB DE-ION family with a KB frame type. This breaker complies with applicable industry standards for molded case circuit breakers and is suited for motor control centers, panelboards, and switchgear requiring reliable fault isolation.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic, LI (Long-Time and Instantaneous) Trip
  • Voltage Rating: 600V AC
  • Current Rating: 90A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 22kA@480V
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Family: AB DE-ION
  • Weight: 19 lb