These NEMA frame fractional HP DC motors include both wound field and permanent magnet designs. Wound field designs are available through 3 HP and permanent magnet designs through 5 HP. All are designed for adjustable speed operation from SCR controls. Applications include conveyors, extruders, packaging equipment, mixers, winders, printing presses and metering pumps. Most designs are constructed so a tachometer may be added for closed loop applications and are offered with 90 or 180 VDC armatures and 20:1 constant torque speed range.