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Square D MHL3630025DC1679 - Molded Case Circuit Breaker 300A

Square D
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Square D MHL3630025DC1679 is a three-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 600V AC, 300A continuous current, with a 20kA interrupting capacity at 500V AC. The unit features a thermal magnetic trip mechanism with LI (Long-Time and Instantaneous) protection functions, housed in an M Frame measuring 12.86 inches high, 8.27 inches wide, and 8.05 inches deep, weighing 55 lb. This breaker complies with applicable UL and NEMA standards for industrial electrical safety. Typical applications include feeder protection in switchboards, panelboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic, MHL Series
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Dimensions: Depth 8.05 in (204.47 mm) Width 8.27 in (210.06 mm) Height 12.86 in (326.64 mm)
  • Standards: UL, NEMA
  • Applications: Industrial power distribution, feeder protection
  • Poles: 3
  • Phase: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • AIC rating: 20kA@500V
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: M Frame
  • Weight: 55 lb


Product Identification
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