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Siemens KL3B400 - Molded Case Circuit Breaker 400A 600V 3-Pole

Siemens
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Save $-396.67
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Siemens KL3B400 is a 3-pole molded case circuit breaker from the KL frame series, designed for overcurrent protection in industrial and commercial power distribution systems. It provides a voltage rating of 600V AC and a current rating of 400 Amperes, utilizing a thermal magnetic trip unit with LI (Long-Time and Instantaneous) protection functions. The unit weighs 25 lb and features a bolt-on connection type for secure installation in panelboards and switchgear. This circuit breaker complies with industry standards for molded case breakers, ensuring reliable performance in demanding environments. Typical applications include branch circuit protection in manufacturing facilities, commercial buildings, and other three-phase power systems.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Siemens
  • Family: KL Frame
  • Type: KL
  • Weight: 25 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600 VAC
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Phase: 3
  • Amperage: 400A
  • Mounting Type: Bolt-On
  • Frame/Series: KL Frame
  • Application: Industrial and commercial power distribution