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Square D MHL364001291 - Molded Case Circuit Breaker, 400A 600V 3P

Square D
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Square D MHL364001291 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 400A current rating and a 600V AC voltage rating, housed within a robust M-frame construction measuring 204.47 mm in depth, 210.06 mm in width, and 326.64 mm in height with a weight of 40 lb. The breaker complies with industry standards for thermal-magnetic protection, incorporating long-time and instantaneous (LI) trip functions and an interrupting capacity of 65kA at 480V. Its feed-thru connection and included 120V shunt trip (MA11021) make it suitable for applications in panelboards, switchboards, and industrial control panels where remote tripping capability is required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, MHL Series, Thermal Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 204.47 mm D x 210.06 mm W x 326.64 mm H (8.05 in x 8.27 in x 12.86 in)
  • Weight: 40 lb
  • Standards: Industry standards for circuit protection
  • Applications: Industrial power distribution, panelboards, switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Poles: 3
  • AIC Rating: 65kA @ 480V
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Frame Size: M Frame
  • Trip Type: Thermal Magnetic
  • Additional Info: Complete with MA11021- 120V shunt trip