Square D QO2100 100A 2-Pole Molded-Case Circuit Breaker | QO Series

Overview

Meet the Square D QO2100, a 100 A two-pole molded case circuit breaker designed for dependable protection in standard load centers. It uses a thermal-magnetic trip mechanism and a common trip for both poles, helping coordinate safety across connected circuits without unnecessary interruptions.

The built-in Visi-Trip indicator provides a quick visual cue when a circuit has tripped, making diagnostics faster while the panel cover remains in place. Rated for 120/240 V and offering a robust 10,000 AIR, this unit is prepared for typical residential and light commercial electrical loads with reliability.

What it protects

Use this breaker for overload and short-circuit protection on circuits up to 100 A. ANSI certified and UL listed, it aligns with widely recognized safety standards and supports broad compatibility in common panel setups.

Compatibility and installation

• Compatible with QO load centers and CSED devices
• Voltage range: 120/240 V; two-pole common trip
• Relatively lightweight at about 2 lb for straightforward upgrades or replacements

Real-world use and benefits

In a home or small business panel, the QO2100 helps curb fault currents and protect conductors, reducing risk to other components. The two-pole design is suitable for multi-wire branch circuits and scenarios where shared neutrals are involved, all while maintaining straightforward installation and ongoing reliability.

• Visi-Trip visibility supports quick status checks during maintenance
• ANSI certified and UL listed for safety compliance and industry acceptance
• Designed for compatibility with QO load centers and CSED devices, simplifying upgrades

At a glance

Amperage: 100 A. Voltage: 120/240 V. Type: QO two-pole with common trip. Air rating: 10,000 AIR. Model: QO2100C. Suitable for residential service panels and light commercial installations.