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Siemens NNX3B120 - Molded Case Circuit Breaker 1200A 600V

Siemens
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Siemens NNX3B120 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in demanding three-phase industrial power distribution systems. It features a 1200A current rating and a 600V voltage rating, housed within a robust NG frame with a bolt-on connection for secure installation. This thermal magnetic breaker offers LI (Long-time and Instantaneous) protection functions and is certified to both UL and IEC standards, ensuring compliance with major industry requirements. Its 35kA interrupting capacity at 480V makes it suitable for protecting feeders and mains in commercial and industrial panelboards, switchboards, and switchgear.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection with LI (Long-Time & Instantaneous) Functions
  • Voltage Rating: 600V AC
  • Current Rating: 1200A
  • Frame Size: NG Frame
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 35kA @ 480V AC
  • Certification: UL Listed, IEC Rated
  • Weight: 65 lb
  • Family: VL Series


Product Identification
  • UPC: 078364349826
  • GTIN: 00783643498266