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Square D MB31 - Molded Case Circuit Breaker 600V 100A

Square D
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Square D MB31 is a molded case circuit breaker designed for overcurrent protection and electrical system isolation in industrial power distribution applications. It is rated for 600 volts AC and 100 amperes, providing reliable interruption of fault currents. The unit weighs 5.19 pounds and features a compact, insulated case construction suitable for panelboard mounting. It complies with UL 489 and CSA standards for safety and performance. This breaker is commonly used in manufacturing facilities, commercial buildings, and heavy machinery control panels.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Weight: 5.19 lb
  • Standards: UL 489, CSA
  • Applications: Industrial power distribution, motor control centers
  • Breaker Type: MB31
  • Frame Size: 100A
  • Trip Type: Thermal-magnetic
  • Poles: 3
  • Connection: Line and load terminals
  • Mounting: Panelboard
  • Phase: 3
  • Hz: 50/60
  • AIC Rating: 10kA at 600V AC
  • Insulation Temperature: 75°C
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Installation Type: Panelboard
  • Item QTY: 1
  • Operating Temperature Maximum Celsius: 40°C


Product Identification
  • UPC: Not available
  • GTIN: Not available