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Westinghouse KL3300 - Molded Case 300A 600V 3-Pole

Westinghouse
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Westinghouse KL3300 is a 3-pole, 300-amp molded case circuit breaker from the KL Series, designed for overcurrent protection in industrial and commercial power distribution systems. It operates at a 600V AC voltage rating and utilizes a thermal magnetic trip unit with LI (Long-Time and Instantaneous) protection functions to safeguard against sustained overloads and short circuits. The unit weighs 48 lb, features a bolt-on connection for secure panel mounting, and is rated for 3-phase applications. This breaker complies with industry standards for molded case circuit breakers and carries an interrupting capacity of 22kA at 480V AC. Typical applications include panelboard and switchboard installations requiring reliable branch circuit or main feeder 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 AC
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 22kA@480V
  • Phase: 3
  • Current Rating: 300A
  • Amperage: 300 Amp
  • Mounting Type: Bolt-On
  • Interrupt Rating: 22kA at 480V AC
  • Frame/Series: KL Series
  • Trip Unit: Thermal Magnetic
  • Application: Molded Case Circuit Breaker
  • Voltage Type: AC