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MP40KF100-3

Cutler Hammer
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Cutler Hammer MP40KF100-3 is a 3-pole molded case circuit breaker designed for thermal-magnetic overcurrent protection in MP40 series panelboards. It is rated for 100A at 600VAC maximum and provides LI (Long-Time and Instantaneous) trip functions for precise fault response. The unit features a bolt-on connection, weighs 25 lb, and is constructed with copper metal components in a dual/twin branch configuration. It is UL Listed with a UL489 interrupting rating, ensuring compliance with industry safety standards. This breaker is suitable for industrial and commercial applications requiring reliable branch circuit protection within compatible panel types.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Amperage: 100A
  • Voltage: 600 VAC maximum
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Mounting Type: Twin Mount
  • Panel Type: MP40
  • Compatible Panel Types: MP40, MP50, MP100, MP200
  • Compatible Frames: EHB, EHD, FD, HFD, FDC, FDB, FB, FS, FH
  • Interrupt Rating: UL489 rated
  • Certifications: UL Listed
  • Metal Type: Copper
  • Weight: 25 lb
  • Configuration: Dual/Twin Branch
  • Item Subcategory: Mounting Hardware


Cutler Hammer MP40KF100-3 - Circuit Breaker 100A 3-Pole