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Square D MHL36120040DC - 3-Pole Molded Case Breaker 1200A 600V

Square D
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Square D MHL36120040DC is a three-pole molded case circuit breaker designed for providing reliable overcurrent protection in demanding three-phase industrial power distribution systems. It features a 1200A current rating and a 600V voltage rating, housed within a compact M Frame measuring 78.49 mm in depth and 112.78 mm in width with a weight of 34.52 lb. The breaker utilizes a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection functions and offers a high interrupting capacity of 25kA at 500VDC. Constructed as a feed-thru device, it complies with industry standards for robust performance in heavy commercial and industrial applications such as main distribution panels and large feeder circuits.

Key Features & Specifications
  • Type: MHL Series, Three-Pole, Molded Case Circuit Breaker with Thermal-Magnetic Protection
  • Voltage Rating: 600V
  • Current Rating: 1200A
  • Dimensions: 3.09 in (78.49 mm) Depth x 4.44 in (112.78 mm) Width
  • Weight: 34.52 lb
  • Standards: Industry standards for molded case circuit breakers
  • Applications: Main distribution, large feeder circuits, and industrial power distribution
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • AIC rating: 25kA @ 500VDC
  • 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
  • Mounting: Panel Mount
  • Manufacturer: Schneider Electric
  • Family: MHL Series
  • Country of Origin: Mexico


Product Identification
  • Model: MHL36120040DC