Current Production Square D
Square D QO
Square D QO breakers are the gold standard for residential and light commercial circuit protection. Known for reliability and quality, QO breakers are found in millions of load centers nationwide.
Type
MCB
Voltage
Low (< 1kV)
Rating
15A - 200A
Typical Applications
Residential panels
Light commercial
HVAC circuits
General purpose
Key Features
Visi-Trip indicator
Quick-open mechanism
Interchangeable
UL Listed
Specifications
- Manufacturer
- Square D
- Series
- QO
- Type
- MCB
- Voltage Class
- Low (< 1kV)
- Rating Range
- 15A - 200A
- Status
- Current
Support & Lifecycle Services
Need Help?
Our engineers can help with part identification, replacement recommendations, and technical specifications.
Ready to Get Started?
Submit your part number, specifications, or requirements. Our team will respond with availability, pricing, and lead times.