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Square D MHP36300 - Molded Case Circuit Breaker 300A 600V 3P

Square D
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Square D MHP36300 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 600V AC voltage rating and a 300A continuous current rating, housed within a compact M Frame design measuring 8.27 in (210.06 mm) wide by 12.86 in (326.64 mm) high by 8.05 in (204.47 mm) deep with a weight of 35 lb. The breaker utilizes a thermal-magnetic trip unit with Long-Time and Instantaneous (LI) protection functions and offers a high interrupting capacity of 65kA at 480V AC. Its three-pole, bolt-on configuration ensures secure installation and robust performance in demanding industrial environments, including manufacturing facilities and commercial buildings.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, MHP Series, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Dimensions: 8.27 in W x 12.86 in H x 8.05 in D (210.06 mm x 326.64 mm x 204.47 mm)
  • Weight: 35 lb
  • Frame Size: M Frame
  • Poles: 3
  • Connection: Bolt-On
  • Phase: 3
  • AIC Rating: 65kA @ 480V AC
  • Protection Functions: Long-Time and Instantaneous (LI)
  • Trip Type: Thermal Magnetic


Product Identification
  • Manufacturer Part Number: MHP36300