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Westinghouse LM3900 - Molded Case 900A 600V 3-Pole

Westinghouse
Price
Save $-1,910.76
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The Westinghouse LM3900 is a three-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It provides thermal-magnetic protection with long-time and instantaneous (LI) trip functions, rated for 900A at 600V AC with an interrupting capacity of 18kA at 480V. Weighing 11 lb, this bolt-on unit features a compact LM frame construction for reliable performance in high-current applications. It complies with industry standards for molded case breakers, ensuring safe operation in commercial and industrial environments. Typical applications include main feeder protection, large motor circuits, and heavy equipment power panels in manufacturing and utility settings.

Key Features & Specifications
  • Type: Molded Case, LM Series, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 900A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC Rating: 18kA@480V
  • Weight: 11 lb
  • Functions: LI - Long-Time and Instantaneous


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