Siemens B340 - 3-Pole 40A Circuit Breaker (10kA AIC, 240V)
Siemens B340 - 3-Pole 40A Circuit Breaker (10kA AIC, 240V)
Siemens B340 - 3-Pole 40A Circuit Breaker (10kA AIC, 240V)
Siemens B340 - 3-Pole 40A Circuit Breaker (10kA AIC, 240V)
Siemens B340 - 3-Pole 40A Circuit Breaker (10kA AIC, 240V)
Siemens B340 - 3-Pole 40A Circuit Breaker (10kA AIC, 240V)

Siemens B340 - 3-Pole 40A Circuit Breaker (10kA AIC, 240V)

Siemens
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Siemens B340 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 40A current rating and a 240V 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 and complies with key industry standards including UL, CSA, HACR, and NOM. It is typically applied in industrial and commercial settings, specifically within Siemens P1 panelboards, for safeguarding motor and distribution circuits.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, Standard Breaker Type
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Dimensions: 2.563" H x 3.00" W x 3.122" D (65.1mm x 76.2mm x 79.3mm)
  • Standards: UL Listed, CSA Certified, HACR Rated, NOM Certified
  • Applications: Motor and Distribution Circuit Protection in Siemens P1 Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-on Connection
  • Phase: 3
  • Amperage: 40A
  • AIC Rating: 10kA @ 240V
  • Connection: Bolt-on
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: 125A/BL
  • Panel Type: Siemens P1 Panelboards
  • Breaker Type: Standard
  • MCM Size: Min. Wire Size 8 AWG, Max. Wire Size 2 AWG (Al) / 4 AWG (Cu)
  • Terminal Connection: Lug
  • Certification: UL Listed, CSA Certified, HACR Rated, NOM Certified
  • Weight: 0.948 lb (0.43 kg)
  • Family: BL Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643263734
  • GTIN: 00783643263734