UX52 Motor Speed Controller Digital Display Electric Rheostat SinglePhase AC 220V(400W ) Item Type: Motor Speed ControllerModel: UX-52 Input Voltage: 220V AC Output Voltage: 220 (V) Speed Adjustment Range: 90-1400 (rpm) Intelligent Button Control System: Yes Soft Stop/Start: Yes Display Mode: Digital display Scope of Application: Microcomputer gear reduction motor Operation Mode: Manual accuracy. Operating Voltage Range: -10%~+10% Power Frequency: 50/60hz ≦-2%~+2% Speed Setting: Continuous Speed Change Rate: 1% Speed Stability Accuracy: 1% Installation Size: Approx. 53 x 81mm / 2.1 x 3.2inIntroduction:UX‑52 intelligent AC speed governor is suitable for micro‑power gear reduction motor motors. The product has a soft start function and an intelligent button control system. The front can be reversed. It saves the old‑fashioned way of forward and reverse wiring. It has human nature It features more stable performance, more accurate driving, and can also realize the function of pause and then drive during the transfer process.