Schneider Electric QO240 Mini Circuit Breaker, 40A, 2 Pole, 120/240VAC, 10kA, Plug-in Mount

Description

Features

• The QO215 is a premium 2-pole, 40-Amp Miniature Circuit Breaker designed for Square D QO load centers. It provides simultaneous overcurrent protection for both "hot" legs of a 120/240V circuit. It is a heavy-duty choice commonly used for high-demand residential and commercial appliances, such as electric water heaters, central air conditioning units, and EV chargers.
• A signature feature of the QO240 is the patented Visi-Trip red indicator. When the breaker trips due to a fault or overload, a highly visible red flag snaps into view in the window. This allows you to identify the specific tripped circuit instantly among a sea of black handles, even in dark electrical closets or basements.
• This breaker is engineered exclusively for Square D QO "Blue Label" load centers and NQ panelboards. It uses a 1.5-inch wide (two 3/4-inch spaces) plug-on design. Note: It is not cross-compatible with Square D Homeline, Eaton, Siemens, or GE panels. Always check for the "QO" branding on your panel door before purchasing.
• The QO240 is built with an internal common-trip mechanism. If a short circuit or overload occurs on just one of the poles, both poles trip at exactly the same time. This prevents "single-phasing" a condition where a motor or heater remains partially energized, which can lead to overheating, equipment failure, or electrical fires.
• The Square D QO240 is UL Listed and CSA Certified with a 10,000 AIR (Amperes Interrupting Rating). It features high-quality pressure plate terminals that ensure a secure, gas-tight connection for copper or aluminum conductors (#8 to #2 AWG). Its "Quick-Make, Quick-Break" mechanism reduces internal arcing, significantly extending the life of the breaker.

Documentation & Downloads

Specifications