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Square D B051 - Miniature Circuit Breaker 15A 120/240V

Square D
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Square D B051 is a miniature circuit breaker designed for overcurrent protection in electrical distribution systems. It is rated for 120/240 volts AC and 15 amps, featuring a compact construction with a thermal-magnetic trip mechanism. This device complies with UL 489 standards for branch circuit protection. It is commonly used in residential and light commercial load centers and panelboards.

Key Features & Specifications
  • Type: Miniature circuit breaker, thermal-magnetic trip
  • Voltage Rating: 120/240 V AC
  • Current Rating: 15 A
  • Dimensions: 1-inch width per pole
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Overcurrent protection in load centers and panelboards
  • Poles: 1
  • Amperage: 15 A
  • AIC rating: 10 kAIC at 120/240 V AC
  • Connection: Plug-on
  • Protection: Overcurrent and short-circuit
  • Frame Size: 1-inch
  • Trip Type: Thermal-magnetic
  • Breaker Type: Miniature circuit breaker
  • Circuit Breaker Mounting Style: Plug-in
  • Terminal Connection: Screw terminals
  • Frequency Rating: 60 Hz
  • Phase: 1
  • Installation Type: Plug-on
  • Weight: 5.19 lb


Product Identification
  • UPC: 78590158721
  • GTIN: 00785901587217