Baldor-reliance motor, .25hp,1750rpm,dc,56c,3320p,tenv,f1 features: provides an integral 50 vdc per 1000 rpm precision tachometer for closed loop drive system class f insulation 20:1 constant torque speed range with nema type control 3300p motors tenv, all others are tefc typical applications: conveyors and metering pumps where precise speed regulation is required.