Siemens BQD140 - Molded Case Breaker 40A 277V 1-Pole
Siemens BQD140 - Molded Case Breaker 40A 277V 1-Pole
Siemens BQD140 - Molded Case Breaker 40A 277V 1-Pole
Siemens BQD140 - Molded Case Breaker 40A 277V 1-Pole
Siemens BQD140 - Molded Case Breaker 40A 277V 1-Pole
Siemens BQD140 - Molded Case Breaker 40A 277V 1-Pole
Siemens BQD140 - Molded Case Breaker 40A 277V 1-Pole
Siemens BQD140 - Molded Case Breaker 40A 277V 1-Pole

Siemens BQD140 - Molded Case Breaker 40A 277V 1-Pole

Siemens
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Siemens BQD140 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in single-phase industrial and commercial electrical systems. It features a 40A current rating and a 277V AC voltage rating, housed within a compact, bolt-on frame measuring 1" x 4.49" x 4.49" (25.4mm x 114mm x 114mm) and weighing 0.549 lb. The breaker is constructed for compliance with CSA-C22.2 and UL 496 standards and utilizes a thermal-magnetic trip mechanism with long-time and instantaneous (LI) functions for coordinated protection. Its typical application is within Siemens P1 panelboards for branch circuit protection in lighting and appliance panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal-Magnetic Protection
  • Voltage Rating: 277V AC
  • Current Rating: 40A
  • Frame Size: 100A/BQD
  • Poles: 1
  • Phase: 1
  • AIC Rating: 14kA @ 277V
  • Trip Functions: LI (Long-Time and Instantaneous)
  • Connection: Bolt-on, Lug Terminal
  • Compatible Panel Type: Siemens P1 Panelboards
  • Wire Size Range (MCM): Min. 12 AWG (Al) / 14 AWG (Cu), Max. 6 AWG
  • Operating Temperature: -25°C to 70°C (-13°F to 158°F)
  • Dimensions: 1 in H x 4.49 in W x 4.49 in D (25.4mm x 114mm x 114mm)
  • Weight: 0.549 lb
  • Standards & Certification: CSA-C22.2, UL 496
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643277137
  • GTIN: 00783643277137