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Square D B0.20 - Miniature Circuit Breaker 20A 1-Pole

Square D
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Square D B0.20 is a miniature circuit breaker designed for overcurrent protection in electrical distribution systems. It is rated for a voltage of 120/240 VAC and a current of 20 amps, with a 10 kAIC rating for interrupting fault currents. The unit features a thermal-magnetic trip type, a 1-pole configuration, and a compact frame size suitable for panelboard installation. This breaker complies with UL 489 standards for safety and performance. It is commonly used in residential and light commercial applications for branch circuit protection.

Key Features & Specifications
  • Type: Miniature Circuit Breaker, thermal-magnetic trip
  • Voltage Rating: 120/240 VAC
  • Current Rating: 20 Amps
  • AIC Rating: 10 kAIC
  • Poles: 1
  • Frame Size: B0
  • Trip Type: Thermal-magnetic
  • Circuit Breaker Mounting Style: Plug-on
  • Standards: UL 489
  • Weight: 5.19 lb


Product Identification
  • UPC: 78590158757