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Westinghouse RLM3400L - Molded Case 400A 600V 3-Pole

Westinghouse
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Westinghouse RLM3400L is a three-pole molded case circuit breaker from the LM Series, designed for overcurrent protection in commercial and industrial power distribution systems. This 400A unit operates at a maximum voltage rating of 600V AC and utilizes thermal-magnetic tripping technology with LI (Long-Time and Instantaneous) functions to safeguard electrical circuits. The breaker features a feed-thru connection type, weighs 68 lb, and is built with a robust M-frame construction for secure installation in standard enclosures. It complies with industry standards for high-interrupting capacity, offering an AIC rating of 22kA at 480V. Typical applications include protecting branch circuits and main feeders in industrial plants, commercial buildings, and heavy-duty power distribution panels.

Key Features & Specifications
  • Type: Molded Case
  • Family: LM Series
  • Type: RLM
  • 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: 400A
  • Weight: 68 lb
  • Amperage Rating: 400 Amps
  • Frame Type: M-Frame
  • Connection Type: Bolt-On
  • Application: Commercial and Industrial Power Distribution