Switch disconnector, 250 A, no overload protection
It is built to the IEC frame size 250 and carries a maximum AC operational voltage of 690 V at 50/60 Hz and a DC operational voltage of 500 V. Per the datasheet, this unit is specified without overload protection and without short-circuit protection — it functions purely as a load-break disconnect for isolation and switching duty, not as a protective device. The 250 A continuous rating means this disconnect can carry full load current in a panel feeder or machine supply circuit without derating under normal ambient conditions up to 70 °C. Because there is no integral trip unit, upstream overcurrent protection must be coordinated separately — this is a disconnect-only device.
Main circuit connections are busbar-type, front-terminal arrangement — this matches standard MCCB panel footprints and busbar systems for 250 A frame sizes. The unit includes a nut keeper kit per the description, which simplifies busbar mounting in the panel.