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Siemens BQ1B045 - 45A Molded Case Breaker (10kA AIC, 120V)

Siemens
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Siemens BQ1B045 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in single-phase electrical systems. It features a 45A current rating and a 120V AC voltage rating, housed within a compact, bolt-on frame measuring 100 x 50 x 20 mm (3.937" x 1.969" x 0.787") and weighing 0.243 lb. This thermal-magnetic breaker is CSA Certified, HACR Rated, and UL Listed, ensuring compliance with North American safety standards for use in Siemens panelboards and compatible enclosures.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic Protection, Standard Breaker Type
  • Voltage Rating: 120V AC
  • Current Rating: 45A
  • Frame Size: 125A/BQ
  • Poles: 1
  • Phase: 1
  • AIC Rating: 10kA @ 120V
  • Connection: Bolt-on, Lug Terminal
  • Functions: LI (Long-Time and Instantaneous Trip)
  • MCM Size / Wire Range: Min. 12 AWG (Al) / 14 AWG (Cu), Max. 10 AWG
  • Dimensions: 100 x 50 x 20 mm (3.937" x 1.969" x 0.787")
  • Weight: 0.243 lb
  • Standards & Certification: CSA Certified, HACR Rated, UL Listed
  • Panel Type: Siemens Panelboards
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643161153
  • GTIN: 00783643161153
  • Family: BQ Series