For stepless speed control of single-phase motors such as induction, shaded pole or universal motorsxx. With additional switching output for slat control or for switching resistive loadsxx. The minimum and maximum speed can be set on the device. Mains voltage AC 230 V, 50 Hz. Nominal load 20 - 400 W. Minimum load 20 W. Load type single-phase motors. Load at switching output max. 2 A, cos Phi 0.6. Short-circuit protection fuse, F4.0AH. To be completed with central plate for speed controller System M MEG5251-03xx/-04xx, System Design MEG5251-60xx version 20-400 VA.