Siemens B390 - Molded Case Circuit Breaker, 90A 3-Pole
Siemens B390 - Molded Case Circuit Breaker, 90A 3-Pole
Siemens B390 - Molded Case Circuit Breaker, 90A 3-Pole
Siemens B390 - Molded Case Circuit Breaker, 90A 3-Pole
Siemens B390 - Molded Case Circuit Breaker, 90A 3-Pole
Siemens B390 - Molded Case Circuit Breaker, 90A 3-Pole

Siemens B390 - Molded Case Circuit Breaker, 90A 3-Pole

Siemens
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Siemens B390 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase electrical systems. It features a 90A 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. This thermal-magnetic breaker is CSA, HACR, NOM, and UL listed, ensuring compliance with key North American safety standards for use in commercial and light industrial applications, specifically within Siemens P1 panelboards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection with Long Time and Instantaneous Trip Functions
  • Voltage Rating: 240V AC
  • Current Rating: 90A
  • Frame Size: 125A/BL
  • AIC Rating: 10kA @ 240V
  • Phase: 3
  • Poles: 3
  • Connection: Bolt-on with Lug Terminal
  • Wire Size Range (MCM): Minimum 2 AWG (Al) / 4 AWG (Cu), Maximum 1/0 AWG
  • Dimensions: 2.563" H x 3.00" W x 3.122" D
  • Weight: 0.948 lb
  • Standards & Certification: CSA Certified, HACR Rated, NOM Certified, UL Listed
  • Panel Type: Compatible with Siemens P1 Panelboards
  • Breaker Type: Standard
  • Country of Origin: Mexico
  • Family: BL Series


Product Identification
  • UPC: 783643263796
  • GTIN: 00783643263796