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Square D MHL365001212 - Molded Case Circuit Breaker 500A 600V 3P

Square D
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Square D MHL365001212 is a molded case circuit breaker designed for providing reliable overcurrent protection in demanding three-phase industrial power distribution systems. It features a 500A current rating and a 600V AC voltage rating, housed within a robust M-Frame construction measuring 8.27 in (210.06 mm) wide by 8.05 in (204.47 mm) deep by 12.86 in (326.64 mm) high and weighing 40 lb. The breaker utilizes a thermal-magnetic trip unit with Long-Time and Instantaneous (LI) functions to ensure coordinated protection, and it is rated for an interrupting capacity of 65kA at 480V AC. This feed-thru style, three-pole breaker is engineered for integration into industrial switchboards and panelboards where high fault current protection and dependable performance are critical.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, MHL Series, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 500A
  • Dimensions: 8.27 in W x 8.05 in D x 12.86 in H (210.06 mm x 204.47 mm x 326.64 mm)
  • Weight: 40 lb
  • Frame Size: M Frame
  • Poles: 3
  • Phase: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • AIC Rating: 65kA @ 480V AC


Product Identification
  • Manufacturer Part Number: MHL365001212