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Westinghouse NB3700PT - 3-Pole 700A Thermal Magnetic Breaker

Cutler Hammer
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Westinghouse NB3700PT is a 3-pole molded case circuit breaker from the NB series, designed for thermal magnetic overcurrent protection in electrical distribution systems. It is rated for 700 amps at 600 volts AC, utilizing a TRI-PAC trip unit that provides long-time and instantaneous (LI) trip functions for reliable circuit interruption. The unit measures 5.5 inches in depth, 8.25 inches in height, and 8.25 inches in width, weighing 4 lb, and features a bolt-on mounting configuration. This breaker is UL 489 certified, ensuring compliance with industry safety standards for industrial and commercial applications. It is typically used in switchboards, panelboards, and other power distribution equipment requiring robust overcurrent protection.

Key Features & Specifications
  • Manufacturer: Westinghouse
  • Type: NB
  • Poles: 3
  • Amperage: 700 Amps
  • Voltage Rating: 600 Volts AC
  • Protection: Thermal Magnetic
  • Trip Unit: TRI-PAC
  • Functions: LI - Long-Time and Instantaneous
  • Mounting Type: Bolt-on
  • Certification: UL 489
  • Dimensions: 5.5 in x 8.25 in x 8.25 in (Length/Depth x Height x Width)
  • Weight: 4 lb
  • Country of Origin: United States


Product Identification
  • UPC: 786679766583
  • GTIN: 00786679766583