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Westinghouse MA3300S - Molded Case 300A 600V 3-Phase

Westinghouse
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Westinghouse MA3300S Circuit Breaker - Molded Case 300A 600V 3-Phase The Westinghouse MA3300S is a 3-pole molded case circuit breaker from the MA Series, designed to provide overcurrent protection through its thermal magnetic trip mechanism. It is rated for 300A continuous current at 600V AC, with an interrupting capacity of 30kA at 480V, and supports 3-phase systems. This bolt-on unit weighs 54 lb and features LI (Long-Time and Instantaneous) protection functions for precise fault response. The breaker complies with industry standards for industrial power distribution and is commonly used in panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic, Bolt-On
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 30kA@480V
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Weight: 54 lb
  • Family: MA Series
  • Item Subcategory: Molded Case


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