Square D FAB12020B - 20A, 1-Pole, Circuit Breaker

Meet the Square D FAB12020B 20A, 1-Pole Circuit Breaker—a compact, reliable solution designed for demanding electrical distributions. Its straightforward 1-pole design makes it a versatile fit for panelboards, switchboards, and control panels, delivering dependable overcurrent protection where it matters most.

• Precise protection at 20A to guard wiring and equipment from overloads and short circuits.
• 1-Pole configuration for flexible installation in a variety of panel layouts and spaces.
• Versatile for industrial, commercial, and OEM uses where robust protection and safe operation are critical.
• Reassuring reliability in distribution panels and motor control centers to minimize downtime and maintain system integrity.
• Easy replacement within Square D ecosystems designed to fit common panel configurations, simplifying service and maintenance.

Practical use cases — ideal for protecting branch circuits feeding motors, lighting, HVAC controls, and essential equipment in panelboards, switchboards, and control panels. In environments where uptime is essential, the FAB12020B provides rapid interruption of fault currents to keep systems safe and operations flowing.

Key specifications at a glance

• Current rating: 20A
• Poles: 1-Pole
• Breaker type: Circuit Breaker

Designed to meet the needs of professionals who demand consistent circuit protection and safe operation in distribution networks, the FAB12020B stands up to the rigors of industrial and commercial settings. Whether you’re stocking for an industrial facility, a commercial install, or an OEM project, this 20A, 1-Pole breaker helps safeguard circuits, reduce risk, and support smooth, reliable operation.