Carpanelli® 8BRG01A full-bridge rectifier, catalog number 3416100, 13.5mm screw in, no filter. Features AC input with DC output of 88% of AC voltage. I.E. 230Vac = 202Vdc. For use with DC brakes used on motors. Rated 500Vac Max 2Amps. Black with 13.5mm thread, white AC supply wires with black/red DC power feed wires