Overview
The Square D QO220CP is a 2-pole miniature circuit breaker designed for overcurrent protection in residential, commercial, and light industrial electrical systems. Rated at 20A, 120/240VAC, this unit delivers 10kA interrupting capacity and plug-in mounting for seamless integration into QO-series load centers. The thermal-magnetic trip mechanism provides fast, reliable protection against overloads and short circuits.
Key Features
- Qwik-Openâ„¢ Technology: Trip reaction within 1/60th of a second, ensuring rapid circuit isolation
- Visi-Tripâ„¢ Indicator: Red trip indicator makes it easy to spot a tripped circuit breaker
- Compact Form Factor: 3/4 in wide format helps minimize panel space and footprint
- Quick-Make/Quick-Break Action: Over center, trip free toggle mechanism with positive handle indication
- Thermal-Magnetic Protection: Overcurrent protection and switching on ac and dc systems with trip free toggle mechanism
Technical Specifications
This unit combines proven thermal-magnetic technology with Square D’s industry-leading trip speed and manual handling. Dimensions are approximately 2.99 × 1.50 × 2.91 inches with a weight of 0.60 lbs.
Typical Applications
- Residential panel protection and branch circuits
- Commercial electrical distribution and switchgear
- Light industrial overcurrent protection
- UPS input/output feeder breakers
- Maintenance bypass and battery-string protection (verify DC suitability)
Compatibility & Replacements
Compatible With
- Square D QO-series load centers and main panels
- QO plug-on neutral systems
- Standard 120/240VAC single-phase distribution
- Auxiliary switches, shunt trips, and alarm switches (factory-installed options)
Replaces / Drop-In Replacement For
The QO220CP directly replaces other QO-series 20A 2-pole breakers rated 120/240VAC with identical mounting and panel footprint. Verify specific model interchangeability with your system integrator before ordering.
Works With
- Square D QO miniature circuit breaker series
- UL-listed electrical panels and enclosures
- Molded-case breaker assembly and customization options
