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Square D MHL3612001288 - 1200A 3-Pole Molded Case Breaker (600V)

Square D
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Square D MHL3612001288 is a 1200A molded case circuit breaker from the MHL series, designed to provide primary overcurrent protection for electrical systems. This 3-pole unit is rated for 600V and 1200A, utilizing thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions for precise fault response. The breaker features a compact M Frame construction with feed-thru connections, measuring 12.86 inches in height, 8.27 inches in width, and 8.05 inches in depth, with a weight of 40 lb. It is UL and CSA certified, meeting rigorous safety and performance standards for industrial environments. Typical applications include power distribution in commercial and industrial facilities requiring reliable 3-phase circuit protection, and it is complete with a 48VDC shunt trip for remote tripping capability.

Key Features & Specifications
  • Type: MHL
  • Amperage: 1200A
  • Voltage: 600V
  • Poles: 3
  • Phase: 3
  • Frame Size: M Frame
  • Protection: Thermal Magnetic
  • Trip Functions: LI - Long-Time and Instantaneous
  • Connection: Feed-Thru
  • AIC Rating: 65kA@480V
  • Weight: 40 lb
  • Dimensions: Depth 8.05 in (204.47 mm) Width 8.27 in (210.06 mm) Height 12.86 in (326.64 mm)
  • Additional Info: complete with 48VDC shunt trip
  • Certifications: UL, CSA


MHL3612001288