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Siemens NPX3B140 - Molded Case Circuit Breaker 1400A 600V 3P

Siemens
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Siemens NPX3B140 is a molded case circuit breaker designed for providing robust overcurrent and short-circuit protection in demanding three-phase industrial power distribution systems. It features a 1400A current rating and a 600V voltage rating, housed within a durable PG frame construction with a bolt-on connection for secure installation. This thermal magnetic breaker complies with industry standards and offers an interrupting capacity of 35kA at 480V AC, utilizing a long-time and instantaneous (LI) trip function for reliable operation. Its typical applications include protecting feeders and mains in commercial and industrial electrical panels, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, NPX Type, Thermal Magnetic Protection with LI (Long-time and Instantaneous) Trip Function
  • Voltage Rating: 600V AC
  • Current Rating: 1400A
  • Frame Size: PG Frame
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 35kA @ 480V AC
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Family: VL Series
  • Weight: 79 lb
  • Additional Info: Lugs are not included; required lugs must be sourced separately based on wiring specifications.


Product Identification
  • UPC: 078364316825
  • GTIN: 00783643500105