Camco Vari-Pak DC Motor Speed Control unit in a NEMA-12 rated enclosure. Front panel features ON, STOP, and OL indicator lights, a speed control knob scaled 0–100%, and a RUN/JOG/STOP pushbutton. Unit is open/disassembled in photos showing internal circuit boards including a KB Electronics KBPI Main Board (REV A1, dated 03.15.95), a secondary control board marked A34226, a filter board marked A34355, and gold-bodied power resistors. Wiring leads exit the bottom of the enclosure. Rear of enclosure shows finned aluminum heat sink. Sold as-is, untested.

See all photos for condition details including internal board layout and external enclosure wear.