Siemens B140 - 1-Pole 40A Circuit Breaker (10kA AIC, 120V)
Siemens B140 - 1-Pole 40A Circuit Breaker (10kA AIC, 120V)
Siemens B140 - 1-Pole 40A Circuit Breaker (10kA AIC, 120V)
Siemens B140 - 1-Pole 40A Circuit Breaker (10kA AIC, 120V)
Siemens B140 - 1-Pole 40A Circuit Breaker (10kA AIC, 120V)
Siemens B140 - 1-Pole 40A Circuit Breaker (10kA AIC, 120V)
Siemens B140 - 1-Pole 40A Circuit Breaker (10kA AIC, 120V)
Siemens B140 - 1-Pole 40A Circuit Breaker (10kA AIC, 120V)

Siemens B140 - 1-Pole 40A Circuit Breaker (10kA AIC, 120V)

Siemens
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Siemens B140 is a molded case circuit breaker designed for providing reliable overcurrent protection in single-phase electrical systems. It features a 40A current rating and a 120V voltage rating, housed within a compact 125A/BL frame with dimensions of 2.571" x 1.00" x 2.89" and a weight of 0.309 lb. The breaker is constructed with bolt-on lug connections and utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, ensuring compliance with UL, CSA, HACR, and NOM standards. Its 10kA interrupting rating at 240V and an operational temperature range of -25°C to 70°C make it suitable for use in Siemens P1 panelboards across various industrial and commercial applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal Magnetic Protection
  • Voltage Rating: 120V
  • Current Rating: 40A
  • Frame Size: 125A/BL
  • Poles: 1
  • Phase: 1
  • AIC Rating: 10kA @ 240V
  • Connection: Bolt-on
  • Terminal Connection: Lug
  • MCM Size: Min. Wire Size 8 AWG, Max. Wire Size 4 AWG (Al) / 6 AWG (Cu)
  • Functions: LI - Long-Time and Instantaneous Trip
  • Panel Type: Siemens P1 Panelboards
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Dimensions: 2.571" x 1.00" x 2.89"
  • Weight: 0.309 lb
  • Standards: CSA Certified, HACR Rated, NOM Certified, UL Listed
  • Certification: CSA Certified, HACR Rated, NOM Certified, UL Listed
  • Breaker Type: Standard
  • Family: BL Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 783643263468
  • GTIN: 00783643263468