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Eaton ND312T57W - Molded Case Circuit Breaker 1200A 600V

Cutler Hammer
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Eaton ND312T57W is a three-pole molded case circuit breaker from the Series C family, designed for high-performance electrical protection in demanding commercial and industrial power systems. It is rated for 1200A at 600V AC with a solid-state LSIGA trip unit providing long-time, short-time, instantaneous, and ground fault alarm functions, and delivers an interrupting capacity of 50kA at 480V. The N Frame breaker features a bolt-on connection, measures 5.5 in x 8.25 in x 8.25 in (Length/Depth x Height x Width), and weighs 44 lb. It is 100% rated, HACR rated, and suitable for 50/60 Hz systems, ensuring reliable protection in critical environments. This breaker is typically applied in industrial switchboards, distribution panels, and large commercial facilities requiring robust overcurrent and ground fault protection.

Key Features & Specifications
  • Manufacturer: Eaton
  • Family: Series C
  • Type: ND
  • Frame Size: N Frame
  • Item Subcategory: Molded Case
  • Poles: 3
  • Current Rating: 1200A
  • Voltage Rating: 600V
  • Phase: 3
  • Protection: Solid State
  • Functions: LSIGA - Long-Time, Short-Time, Instantaneous and Ground Fault Alarm
  • AIC Rating: 50kA@480V
  • Connection: Bolt-On
  • Dimensions: 5.5 in x 8.25 in x 8.25 in (Length/Depth x Height x Width)
  • Weight: 44 lb
  • Frequency Rating: 50 to 60 Hz
  • Rating: 100% rated
  • Terminals: Without terminals
  • Compliances: HACR Rated


Product Identification
  • UPC: 782114408629
  • GTIN: 00782114408629