The Square D DOM20B6 is a 20 amp, Type B, circuit breaker designed for electrical wiring. It has a DIN rail mounting style and is suitable for interior walls. With a tripping characteristic of Type B, this supplementary protector has a white plastic housing and operates with an on/off method. Made in France, this circuit breaker is reliable and efficient for various electrical applications requiring a maximum amperage of 20A. The Square D brand ensures quality and durability in its construction and performance.