Siemens B370 - Molded Case Circuit Breaker, 70A 3-Pole
Siemens B370 - Molded Case Circuit Breaker, 70A 3-Pole
Siemens B370 - Molded Case Circuit Breaker, 70A 3-Pole
Siemens B370 - Molded Case Circuit Breaker, 70A 3-Pole
Siemens B370 - Molded Case Circuit Breaker, 70A 3-Pole
Siemens B370 - Molded Case Circuit Breaker, 70A 3-Pole

Siemens B370 - Molded Case Circuit Breaker, 70A 3-Pole

Siemens
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Siemens B370 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 design measuring 2.563" x 3.00" x 3.122" and weighing 0.948 lb. The breaker is constructed with thermal-magnetic trip technology for both long-time and instantaneous protection, ensuring compliance with UL, CSA, HACR, and NOM standards. It is engineered for use in Siemens P1 panelboards and typical industrial applications include commercial and light industrial power distribution.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Standard Breaker Type
  • Voltage Rating: 240V AC
  • Current Rating: 70A
  • Dimensions: 2.563" H x 3.00" W x 3.122" D (65.1mm x 76.2mm x 79.3mm)
  • Weight: 0.948 lb (0.43 kg)
  • Standards: UL Listed, CSA Certified, HACR Rated, NOM Certified
  • Applications: Commercial and Light Industrial Power Distribution, Siemens P1 Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-on
  • Phase: 3
  • Poles: 3
  • AIC Rating: 10kA @ 240V
  • Connection: Bolt-on
  • Terminal Connection: Lug
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: 125A/BL
  • Breaker Type: Standard
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Panel Type: Siemens P1 Panelboards
  • MCM Size: Wire Range: Min. 2 AWG (Al) / 4 AWG (Cu), Max. 1/0 AWG
  • Family: BL Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643263772
  • GTIN: 00783643263772