Vostermans Varifan Variable Speed Drive (VSD-1C)
This variable speed module has a maximum load of 15 amps. Compatible with a 0-10 volt or 4-20 mA input signal. Internal minimum speed adjustment with possibility to work continuously at minimum speed. Comes in a rugged, seal enclosure that protects from light, moisture and dust. Includes extended supply voltage range and a radio interference filter.