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Siemens BQ3C040 - Molded Case Circuit Breaker 40A 3-Pole 480V

Siemens
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Siemens BQ3C040 is a 3-pole, 40A molded case circuit breaker from the BQ Series, designed to provide thermal-magnetic protection for commercial and industrial power distribution systems. It is rated for 480V AC operation and features LI (Long-Time and Instantaneous) trip functions to safeguard against overloads and short circuits. The unit has a bolt-on mounting design with lug terminals, weighs 1 lb, and is intended for use in Siemens panelboards. It is UL Listed, HACR Rated, and certified by CSA and UL, ensuring compliance with rigorous industry standards. This breaker is typically applied in commercial and industrial electrical systems requiring reliable circuit interruption.

Key Features & Specifications
  • Type: BQ
  • Poles: 3
  • Current Rating: 40A
  • Voltage Rating: 480V AC
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: Bolt-On
  • Terminal Connection: Lug
  • Weight: 1 lb
  • Panel Type: Siemens Panelboards
  • Phase: 3
  • Standards: HACR Rated, UL Listed
  • Certification: CSA, HACR, UL
  • Interrupt Rating: 10 kA
  • Application: Commercial and Industrial


Part Number: BQ3C040