Manually operated chassis trolley/trolley for ABB VD4 VS1 VM1/ Eaton NVU 3AS4 /Siemens 3AH /-VCB circuit breakers
1. In closing state, when handcart in working or isolated position, and with handle operating, the handcart won’t move, so that to prevent to pull handcart on- load.
2. When handcart in working position, earthing switch can’t close, to avoid closing earthing switch.
3. When handcart back to isolated state, after earthing switch closing, the handcart can’t be moved to working position to prevent closing with earthing wire.
4. Once handcart is away from isolated position, when push the handcart with handle to working position, during the way, can’t carry on closing operation.While after reached to working position, closing operation can be made.
5. After handcart getting into cabinet, as long as handcart is not in isolated position, it can’t draw out from the cabinet.