Square D QOB120 Single-Pole Circuit Breaker – 20 Amp

When your home or job site demands dependable overcurrent protection, the Square D QOB120 delivers. Built to the exacting standards that have made Square D a trusted name in electrical for over a century, this 20-amp single-pole breaker is engineered for bolt-on panel installations — giving electricians and homeowners alike the confidence that their circuits are protected for the long haul.

Key Features

• 20-Amp, 120/240V single-pole protection for residential and light commercial circuits
• Bolt-on design — provides a more secure connection than plug-in breakers, ideal for high-vibration environments
• Thermal-magnetic trip mechanism for fast, reliable response to overloads and short circuits
• Visi-Trip indicator — clearly shows when the breaker has tripped for quick troubleshooting
• UL Listed — meets North American safety and performance standards
• Compatible with Square D QO and Homeline bolt-on load centers

Specifications

• Model: QOB120
• Brand: Square D (Schneider Electric)
• Type: Single-Pole Bolt-On Circuit Breaker
• Amperage: 20A
• Voltage: 120/240V AC
• Poles: 1
• Mounting: Bolt-On
• Trip Type: Thermal-Magnetic
• Standards: UL Listed

Installation Notes

The QOB120 is a bolt-on breaker designed for compatible Square D QO bolt-on load centers. Always verify panel compatibility before installation. Work should be performed by a licensed electrician in accordance with local electrical codes and the National Electrical Code (NEC).