Motor Speed Controller JD1A-40/11/90 Electromagnetic Speed Motor Controller with Wire Speed Switch 220V. Product name: Electromagnetic speed regulating motor controller. Controllable motor power: 0.55-11KW. Speed change rate:? 3%. Input power: AC 220V±10% 50-60HZ. Controllable Motor Power: 0.55-11 kW. Input Power: 220 V AC ±10%, 50-60 Hz. Weight: 0.95 kg. Controllable Motor Power: 15-40 kW. Speed Variation Rate:? 3%. Input Power: AC 220V ±10% 50-60 Hz. Controllable motor power: 45-90 kW. Input power: 220 V AC ±10%, 50-60 Hz.