IronHorse GSD4 series DC general purpose drive, 120/240 VAC, 1-phase, 1/50 to 1/8hp at 90 VDC and 1/25 to 1/4hp at 180 VDC, 1.2A, open frame, panel mount, field-install reverse, potentiometer input, SCR output.
New in opened factory box with instructions.