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Square D MHL36450 - Molded Case Circuit Breaker 450A 600V 3P

Square D
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Square D MHL36450 is a molded case circuit breaker designed for providing reliable overcurrent protection in demanding three-phase industrial power distribution systems. It features a 600V AC voltage rating and a 450A continuous current rating, housed within a robust M-frame construction measuring 8.27 in (210.06 mm) wide by 12.86 in (326.64 mm) high by 8.05 in (204.47 mm) deep with a weight of 40 lb. The breaker complies with industry standards through its thermal-magnetic protection mechanism, which incorporates both long-time and instantaneous trip functions for coordinated system protection. Its 65kA interrupting capacity at 480V AC and feed-thru connection make it suitable for main feeder and branch circuit protection in industrial panels, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, MHL Series, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 450A
  • Dimensions: 8.27 in W x 12.86 in H x 8.05 in D (210.06 mm x 326.64 mm x 204.47 mm)
  • Weight: 40 lb
  • Standards: Industry Standard for Molded Case Circuit Breakers
  • Applications: Industrial Power Distribution, Main Feeders, Motor Control Centers
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Poles: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: M Frame
  • AIC rating: 65kA @ 480V AC
  • Item Subcategory: Molded Case


Product Identification
  • Manufacturer Part Number: MHL36450
  • Family: MHL Series