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Siemens NGB3B045B - Molded Case Breaker 45A 600V 3P

Siemens
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Siemens NGB3B045B is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial power distribution systems. It features a 45A continuous current rating and a 600V AC voltage rating, housed within a compact GG frame with a three-pole, bolt-on connection configuration for secure installation. The breaker utilizes a thermal-magnetic trip unit offering both long-time and instantaneous (LI) protection functions and is constructed to operate in ambient temperatures from -13°F to 158°F (-25°C to 70°C). Certified to UL and IEC standards, it provides an interrupting capacity of 25kA at 480V AC and is engineered for integration into panelboards and switchboards, typically protecting feeders and branch circuits compatible with copper or aluminum conductors from AWS size 8 to 1/0.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, NGB Type, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 45A
  • Dimensions: GG Frame
  • Standards: UL, IEC
  • Applications: Industrial power distribution, panelboards, switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Three-Pole
  • Phase: 3
  • AIC rating: 25kA @ 480V AC
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous Trip)
  • Frame Size: GG Frame
  • Trip Type: Thermal-Magnetic
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Wire Size: AWS 8 to AWS 1/0, CU/AL
  • Certification: UL, IEC
  • Weight: 2.615 lb
  • Family: VL Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643414310
  • GTIN: 00783643414310