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Square D MHB36800 - Molded Case 800A 600V 3-Pole

Square D
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The Square D MHB36800 is a 3-pole molded case circuit breaker from the I-Line family, designed for overcurrent protection in industrial power distribution systems. It is rated for 600V AC, 800A continuous current, and provides a 65kA interrupting capacity at 480V AC. This unit features an M Frame size, thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions, and an I-Line style plug-in connection for secure busbar mounting. It complies with industry standards for molded case circuit breakers and is suited for protecting feeders, main disconnects, and heavy machinery in manufacturing plants, data centers, and commercial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, I-Line Family, MHB Series
  • Voltage Rating: 600V AC
  • Current Rating: 800A
  • Dimensions: Depth 8.05 in (204.47 mm) Width 8.27 in (210.06 mm) Height 12.86 in (326.64 mm)
  • Weight: 40 lb
  • Standards: UL, CSA, NEMA
  • Applications: Industrial power distribution, feeder protection, main disconnects
  • Poles: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 65kA@480V
  • Phase: 3
  • Frame Size: M Frame
  • Trip Type: LI - Long-Time and Instantaneous
  • Functions: LI - Long-Time and Instantaneous
  • Circuit Breaker Mounting Style: Plug-In
  • Terminal Connection: I-Line
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Installation Type: Panelboard
  • Breaker Frame: M Frame
  • Current Rating: 800A


Product Identification
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