Westinghouse 4D33900G19 Industrial Power Supply

The Westinghouse 4D33900G19 Power Supply is an industrial-duty AC-to-DC converter that provides a regulated 24 VDC control voltage for automation equipment. With an input voltage range of 85-264 VAC, it is designed for use in Ovation control systems, PLC cabinets, and DCS platforms, and can be mounted in control cabinets or on rack rails as a SUB 14 sub-assembly. This unit supports reliable power distribution in distributed control systems, industrial process automation equipment, manufacturing facilities, utility plants, and other industrial processing operations requiring stable 24 VDC control power. Common replacements include Emerson Ovation 1C31129G03, Westinghouse 4D33900G21, and Siemens SITOP 6EP1437-3BA10 Power Supplies.