Sorensen 33V 33A programmable DC power supply, model number DCS33-33EM15. Used. These units are in good condition with some minor scratches around the mounting holes and on a few spots on the cases (see pictures). Input voltage set at 230VAC (user adjustable for 115VAC input). To view a full specification sheet for the DCS33-33 EM15 unit (PDF), click here. Please note that Sorensen is now part of the Elgar/Xantrex/Ametek brand.