Possessing the guarding function against overload,
under-voltage and phase failure;

1. This product applies to 50Hz380V14~190KW 3-
phase asynchronous motor's infrequently self-coupling
step-down start;
2. Steel plate welded shell with plastic-sprayed surface;
3. Inside mounted auto-transformer, AC contactor thermal
relay, time-relay, intermediate relay, fuser and indicator
etc;
4. Possessing the guarding function against overload
under-voltage and phase failure;
5. Steelpipe and cable wiring;
6. Can be customized according to user's requirements.
7. Suitable for GB3836-2000IEC60079, GB12476.1-2000
IEC61241 standard request.