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Cutler Hammer ND312T32W - Molded Case Circuit Breaker 1200A 600V 3P

Cutler Hammer
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Cutler Hammer ND312T32W is a molded case circuit breaker designed for providing robust overcurrent protection in demanding three-phase industrial power systems. It features a solid-state LSI (Long-Time, Short-Time, Instantaneous) trip unit for precise protection coordination and is rated for 1200A at 600V with a 50kA interrupting capacity at 480V. The breaker is constructed with a durable N-frame and bolt-on connections within compact dimensions of 5.5 in D x 8.25 in H x 8.25 in W, weighing 49.15 lb, and operates reliably across a temperature range of -25 to 70 °C (-13 to 158 °F). It is HACR rated for HVAC applications and complies with relevant industry standards, making it suitable for use in industrial control panels, switchgear, and large commercial power distribution.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Protection, LSI Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 1200A
  • Dimensions: 5.5 in D x 8.25 in H x 8.25 in W (139.7 mm x 209.6 mm x 209.6 mm)
  • Standards: HACR Rated
  • Applications: Industrial Power Distribution, Switchgear, Control Panels
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Amperage: 1200A
  • AIC rating: 50kA @ 480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Solid State Trip Unit
  • Functions: Long-Time, Short-Time, Instantaneous (LSI)
  • Frame Size: N Frame
  • Trip Type: Solid State, Adjustable
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Weight: 49.15 lb


Product Identification
  • UPC: 786679252666
  • GTIN: 00786679252666