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Siemens NGB1B045B - Molded Case Circuit Breaker 45A 1P (25kA AIC)

Siemens
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Siemens NGB1B045B is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. It features a 45A current rating and a 347V AC voltage rating, housed within a compact GG frame with a single-pole, bolt-on connection for secure installation. This thermal magnetic breaker incorporates both long-time and instantaneous (LI) trip functions and is certified to UL and IEC standards, ensuring compliance with rigorous safety requirements. Its 25kA interrupting rating at 277V AC makes it suitable for protecting feeders and branch circuits in a wide range of applications, operating effectively within a temperature range of -13°F to 158°F (-25°C to 70°C).

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 347V AC
  • Current Rating: 45A
  • Frame Size: GG Frame
  • Poles: 1
  • Phase: 1
  • AIC Rating: 25kA @ 277V AC
  • Protection Functions: LI (Long-Time and Instantaneous Trip)
  • Trip Type: Thermal Magnetic
  • Connection: Bolt-On
  • Certification: UL, IEC
  • Operating Temperature: -13°F to 158°F (-25°C to 70°C)
  • Weight: 0.88 lb
  • Family: VL Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643414013
  • GTIN: 00783643414013