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Siemens HJM3M400 - 400A 3-Pole Molded Case Breaker 600V

Siemens
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The Siemens HJM3M400 is a 3-pole molded case circuit breaker designed for magnetic-only protection in industrial power distribution systems. It is rated for 400A continuous current at 600V AC, with an interrupting capacity of 65kA at 480V, and features instantaneous (I) trip functions for short-circuit protection. This bolt-on unit weighs 42 lb and is constructed for three-phase applications, utilizing a magnetic-only protection mechanism without thermal elements. The breaker complies with applicable UL and NEMA standards for industrial environments. It is typically used in switchboards, panelboards, and motor control centers where selective coordination and high fault current interruption are required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Magnetic Only Protection
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 65kA@480V
  • Functions: I - Instantaneous
  • Weight: 42 lb
  • Additional Info: This item does not include lugs.


Product Identification
  • UPC: 078364342931