Siemens BQ3B070 - Molded Case Circuit Breaker, 70A 3P 240V
Siemens BQ3B070 - Molded Case Circuit Breaker, 70A 3P 240V
Siemens BQ3B070 - Molded Case Circuit Breaker, 70A 3P 240V
Siemens BQ3B070 - Molded Case Circuit Breaker, 70A 3P 240V
Siemens BQ3B070 - Molded Case Circuit Breaker, 70A 3P 240V
Siemens BQ3B070 - Molded Case Circuit Breaker, 70A 3P 240V
Siemens BQ3B070 - Molded Case Circuit Breaker, 70A 3P 240V
Siemens BQ3B070 - Molded Case Circuit Breaker, 70A 3P 240V

Siemens BQ3B070 - Molded Case Circuit Breaker, 70A 3P 240V

Siemens
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Siemens BQ3B070 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 70A current rating and a 240V AC voltage rating, housed within a compact, bolt-on frame measuring 2.563" x 3.00" x 3.972" (65.1mm x 76.2mm x 100.9mm) and weighing 1.014 lb. The breaker is constructed for durability with a thermal-magnetic trip unit providing both long-time and instantaneous protection, and it complies with key industry standards including UL listing and CSA certification. Its 10kA interrupting rating at 240V and HACR rating make it suitable for integration into Siemens panelboards for commercial and light industrial applications such as feeder and branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Standard
  • Voltage Rating: 240V AC
  • Current Rating: 70A
  • Frame Size: 125A/BQ
  • Poles: 3
  • Connection: Bolt-on with Lug Terminals
  • AIC Rating: 10kA @ 240V AC
  • Phase: 3
  • Functions: Long Time and Instantaneous Trip
  • Protection: Thermal Magnetic
  • MCM Size: Wire Range 2 AWG (Al) / 4 AWG (Cu) to 1/0 AWG
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Dimensions: 2.563" x 3.00" x 3.972" (65.1mm x 76.2mm x 100.9mm)
  • Weight: 1.014 lb
  • Standards: UL Listed, HACR Rated
  • Certification: CSA, HACR, UL
  • Panel Type: Siemens Panelboards
  • Breaker Type: Standard
  • Country of Origin: Mexico
  • Family: BQ Series


Product Identification
  • UPC: 783643102644
  • GTIN: 00783643102644