Square D QOB2151021 - 15A, 2-Pole, Circuit Breaker

Square D QOB2151021 is a 15A, 2-Pole circuit breaker engineered for dependable overcurrent protection in demanding electrical environments. Designed to drop into panelboards, switchboards, and control panels, this unit ensures reliable performance where it’s most needed.

With a two-pole configuration, it interrupts both hot legs of a 240V circuit simultaneously, delivering safer shutdown during fault events and reducing the risk of backfeed. The 15-amp rating makes it ideal for protecting moderate-load branch circuits without nuisance trips, balancing protection and usability in everyday operations.

Ideal for industrial, commercial, and OEM applications, the QOB2151021 is a smart choice for distribution panels and motor control centers where reliable protection and safe operation are critical. Whether you’re upgrading existing infrastructure, stocking a maintenance kit, or configuring a new control panel, this breaker integrates seamlessly within a Square D ecosystem to keep systems running smoothly.

• Two-pole protection for simultaneous disconnection of both hot legs in 240V circuits
• 15A current rating delivers targeted protection for moderate-load branch circuits
• Versatile compatibility fits panelboards, switchboards, and control panels within industrial, commercial, and OEM settings
• Reliable overcurrent protection keeps distribution panels and motor control centers safeguarded against faults
• Easy integration designed for straightforward replacement and seamless incorporation into Square D installations

Practical use scenarios include protecting lighting and HVAC controls in commercial facilities, safeguarding motors and feeders in industrial equipment, and serving as a dependable component in OEM enclosures. When installing, follow all local electrical codes and the manufacturer’s instructions to ensure proper fit and safe operation.