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Square D MHL366001212 - Molded Case Circuit Breaker 600A 600V 3P

Square D
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Square D MHL366001212 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 600A current rating and a 600V voltage rating, engineered to interrupt fault currents up to 65kA at 480V AC. The breaker is constructed with a robust M Frame in a three-pole, feed-thru configuration, featuring thermal-magnetic protection for both long-time delay and instantaneous tripping functions (LI). It complies with relevant industry standards for safety and performance, making it suitable for use in panelboards, switchboards, and other industrial control equipment where dependable circuit protection is critical.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, MHL Series, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • 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
  • Standards: Industry Standard
  • Applications: Industrial Power Distribution, Panelboards, Switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Feed-Thru
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Frame Size: M Frame
  • Trip Type: Thermal-Magnetic
  • Breaker Type: Molded Case


Product Identification
  • Manufacturer Part Number: MHL366001212