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Westinghouse KL3300L - Molded Case 300A 600V 3-Pole Thermal Magnetic

Westinghouse
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Westinghouse KL3300L is a 300-amp, 600-volt, 3-pole molded case circuit breaker from the KL Series, designed for reliable overcurrent protection in industrial and commercial power systems. It utilizes a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions and a feed-thru connection, rated for 22kA interrupting capacity at 480V in three-phase applications. The unit weighs 48 lb and features a bolt-on mounting type for secure installation within compatible panelboards and switchgear. This circuit breaker complies with industry standards for robust performance in demanding electrical distribution environments. It is typically applied in manufacturing facilities, commercial buildings, and utility systems requiring dependable circuit isolation and fault protection.

Key Features & Specifications
  • Manufacturer: Westinghouse
  • Item Subcategory: Molded Case
  • Family: KL Series
  • Type: KL
  • Weight: 48 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • AIC rating: 22kA@480V
  • Phase: 3
  • Current Rating: 300A
  • Amperage: 300A
  • Voltage: 600VAC
  • Mounting Type: Bolt-On
  • Interrupt Rating: 22kA at 480V
  • Trip Unit: Thermal-Magnetic