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Siemens KP3B120 - Molded Case 1200A 3-Pole Thermal Magnetic

Siemens
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Siemens KP3B120 Circuit Breaker - Molded Case 1200A 3-Pole Thermal Magnetic The Siemens KP3B120 is a 3-pole molded case circuit breaker from the KP Series, designed to provide LI (Long-Time and Instantaneous) protection for industrial power distribution systems. It is rated for 600V AC, 1200A continuous current, and features a thermal magnetic trip mechanism with a 50kA interrupting capacity at 480V, ensuring reliable overcurrent and short-circuit protection. This bolt-on unit weighs 65 lb and is constructed for robust performance in high-amperage applications, with a 3-phase configuration that integrates seamlessly into switchboards and panelboards. The breaker complies with industry standards for molded case circuit breakers, making it suitable for protecting feeders, large motors, and main distribution panels in heavy industrial environments. Typical applications include manufacturing plants, data centers, and commercial facilities requiring dependable circuit isolation and fault interruption.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, KP Series, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 1200A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC Rating: 50kA@480V
  • Weight: 65 lb
  • Functions: LI - Long-Time and Instantaneous


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