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Siemens NEB3B050B - Molded Case Circuit Breaker 50A 600V 3P

Siemens
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Siemens NEB3B050B is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 50A current rating and a 600V voltage rating, housed in a compact, bolt-on configuration for secure panel mounting. The breaker is constructed with thermal-magnetic protection, offering both long-time and instantaneous trip functions, and operates reliably within a temperature range of -25 to 70 °C. It complies with industry standards for safety and performance, including an interrupting capacity of 35kA at 480V. Typical applications include industrial control panels, motor control centers, and power distribution equipment where robust circuit protection is required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 600V AC
  • Current Rating: 50A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 35kA @ 480V AC
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Connection: Bolt-On
  • Wire Size: AWS 8 to AWS 1/0, Copper or Aluminum
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Weight: 1.257 lb
  • Standards: Designed to meet applicable industry safety standards
  • Applications: Industrial control panels, motor control centers, power distribution
  • Family: NEB Series
  • Country of Origin: Dominican Republic


Product Identification
  • UPC: 783643558571
  • GTIN: 00783643558571