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Westinghouse NBY3900 - Molded Case Switch 900A 240V 3-Pole

Westinghouse
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Westinghouse NBY3900 is a 3-pole molded case circuit breaker designed for non-automatic switching applications requiring no overcurrent protection. This bolt-on unit is rated for 240V AC, 900A continuous current, and delivers a 100kA interrupting capacity at 240V AC for high-fault industrial environments. Weighing 61 lb, the NBY3900 features a robust molded case construction with bolt-on connections for secure panel mounting in three-phase systems. It complies with applicable industry standards for molded case switches and is intended for use as a disconnect or switching device where overcurrent protection is provided separately. Typical applications include industrial power distribution, switchboards, and motor control centers requiring high-current manual switching.

Key Features & Specifications
  • Type: Molded Case, Non-Automatic Switch
  • Voltage Rating: 240V AC
  • Current Rating: 900A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Non-Automatic (No Overcurrent Protection)
  • AIC Rating: 100kA@240V
  • Functions: NA - No Overcurrent Protection
  • Family: NBY Series
  • Weight: 61 lb


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