The Square D HOM240 Plug-On Circuit Breaker is a 2-pole, 40A device designed for electrical protection in miniature circuit breaker applications. With a maximum amperage of 40A and voltage rating of 120/240V AC, this black-colored circuit breaker is compact with dimensions of 2.90" in height, 3.20" in length, and 1.80" in width. This reliable and efficient component from Square D is ideal for use in various electrical systems requiring a current rating of 31-40 A.