DC MOTOR ,CE,CCC,ISO are approved ! Series Z4 dc motors are newly developed products of our works. ... be derived on request. 3.Rated speed: 3000, 1500, 1000, 750, 600, 500, 400, 300 and 200 r/min ... gases which corrode insulation. D. Duty: Continuous (SI); E. Armature and field circuits for motors may be either ... GB755. Fundamental technical rules for electrical machinery. DC motor (132KW/1000rpm)