The Square D QOU170 Miniature Circuit Breaker is a single pole unit with a current rating of 70A and voltage compatibility of 120/240VAC. It features a Type D tripping characteristic and a manual reset control style with thermal overload protection and a trip indicator. The circuit breaker is designed for interior use and has a DIN rail mounting style, suitable for branch circuit applications. With a compact design and ABS/plastic construction, the Square D QOU170 offers reliable protection against electrical overloads and shorts in a variety of settings.