The Square D by Schneider Electric QO 20 Amp Single-Pole  Circuit Breaker is intended for overload and short-circuit protection of your electrical system. This breaker  is compatible with Square D QO load centers, CSED devices, and NQOD panel boards. The ANSI-certified and UL-listed unit is rated for 120/240 VAC and 10,000 AIR. All QO circuit breakers are equipped with the exclusive Visi-Trip indicator. When a QO Visi-Trip circuit breaker trips, the handle snaps to a midpoint position between in OFF and in ON and a highly visible, red indicator easily identifies the tripped breaker. This enables you to easily distinguish which breaker has tripped in a load center that may contain up to 42 different circuit breakers. QO circuit breakers have features no other manufacturer can offer. They come in many different sizes and can meet the needs of virtually every function in your home or business. These types of quality, industry exclusive products keep the Square D brand ahead of the competition and are builders' and electrical contractors' first choice in electrical protection.

• QO-120 one-pole circuit breaker
• Plug-on design, easy to install
• Compatible with Square D QO breaker boxes, CSED's and NQOD panel boards with 1 space
• For installation in 120/240-Volt AC systems
• 10,000 AIR
• Limited lifetime warranty