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Westinghouse MCA3400 - Molded Case 400A 600V 3-Pole

Westinghouse
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Westinghouse MCA3400 is a 3-pole molded case circuit breaker from the SELTRONIC family, designed for solid-state protection with long-time and short-time (LS) trip functions. It is rated for 600V AC, 400A continuous current, and an interrupting capacity of 30kA at 480V, with a bolt-on connection for secure installation. Weighing 38 lb, this unit features a compact molded case construction suitable for industrial panelboards and switchboards. It complies with applicable UL and NEMA standards for overcurrent protection in three-phase power distribution systems. Typical applications include motor control centers, feeder circuits, and main disconnects in manufacturing and process facilities.

Key Features & Specifications
  • Type: Molded Case, Solid State
  • Voltage Rating: 600V
  • Current Rating: 400A
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Solid State (LS - Long-Time and Short-Time)
  • AIC Rating: 30kA@480V
  • Phase: 3
  • Weight: 38 lb
  • Family: SELTRONIC
  • Item Subcategory: Molded Case
  • Functions: LS - Long-Time and Short-Time


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