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Westinghouse LA3300PR - Molded Case Circuit Breaker 300A 600V 3P

Westinghouse
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Westinghouse LA3300PR is a molded case circuit breaker designed for providing reliable overcurrent protection in demanding three-phase industrial power systems. It features a 300A current rating and a 600V AC voltage rating, housed within a compact 1-inch cubic footprint and a bolt-on connection configuration for secure installation. This thermal magnetic breaker utilizes long-time and instantaneous (LI) trip functions and is certified to UL 489 standards, ensuring compliance with critical safety requirements. Its robust 200kA interrupting capacity at 480V makes it suitable for protecting feeders and branch circuits in industrial facilities, data centers, and large commercial installations.

Key Features & Specifications
  • Type: LA Series, Tri-Pac Family, Molded Case, Thermal Magnetic Protection with Long-Time and Instantaneous (LI) Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Dimensions: 1 in (L) x 1 in (H) x 1 in (W)
  • Weight: 1 lb
  • Standards: UL 489 Certified
  • Applications: Industrial Power Distribution, Feeder and Branch Circuit Protection
  • Phase: 3
  • AIC Rating: 200kA @ 480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Country of Origin: United States


Product Identification
  • UPC: 786679765920
  • GTIN: 00786679765920