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Siemens NEB3B125B - Molded Case Circuit Breaker 125A 3P (35kA AIC)

Siemens
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Siemens NEB3B125B is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 125A current rating and a 600V AC voltage rating, housed in a compact, bolt-on configuration for secure panel mounting. The breaker utilizes a thermal-magnetic trip mechanism for combined long-time and instantaneous (LI) protection and is constructed to operate within a temperature range of -25 to 70 °C (-13 to 158 °F). It complies with industry standards for safety and performance, offering an interrupting capacity of 35kA at 480V AC. This model is typically applied in industrial control panels, power distribution equipment, and commercial electrical systems requiring robust circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 35kA @ 480V AC
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)
  • Trip Type: Thermal Magnetic
  • Connection: Bolt-On
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Weight: 1.25 lb
  • Standards: Industry standards for safety and performance
  • Applications: Industrial control panels, power distribution, commercial electrical systems
  • Family: NEB Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643558649
  • GTIN: 00783643558649