One model covers 90VDC (1/10 - 1 HP) @ 115VAC And 180VDC (1/5 - 2 HP) @ 230VAC. Operation modes of Speed or Torque. Capable of controlling DC PM or Shunt motors in a bidirectional mode. Over speed protection circuits and KB's Auto Inhibit function (to provide smooth starting) are just a few advanced features included in this drive. A 5K remote potentiometer and instructions are supplied.