This breaker is designed to fit RXBH-17A05J, RXBH-17A15J, RXHJ-21B05J, RXHJ-24B05J, RXQJ-A10J, RXQJ-A15C, RXQJ-A15J, and RXQJ-B15J. Current rating (A): 30 | Electrical connections: Lug 1/4 inch quick connect | Maximum voltage rating (VAC): 230 | Mounting style: DIN rail | Number of poles: 2 | Type: QOU Installation by a qualified technician is recommended. It is important to disconnect from the power supply before servicing. Supplying Demand replacement parts are compatible with Major Brands, but you should always verify fitment with your specific application. SD products come in Supplying Demand packaging.