It carries a maximum AC operational voltage of 690 V at 50/60 Hz and a DC rating of 500 V, with an insulation voltage (Ui) of 800 V. The part is designed as a manual load-break disconnect — no overcurrent protection, no short-circuit release — so it is specified where a visible break and safe isolation are needed, not where the device itself clears faults.
The 15 000-cycle mechanical endurance is typical for a switch disconnector in panel isolation duty; if your application needs frequent switching under load, the cycle count governs service life. The three built-in auxiliary switches (HQ type) give you status feedback — open/closed position — without needing separate limit switches. Optional motor drive allows remote operation, but the base unit is manual-trip only.
The 3VA1 frame (76.2 mm wide, 130 mm tall, 70 mm deep) matches the standard SENTRON MCCB footprint for 160 A frame size. The front terminals are accessible with the panel door closed, so it works in a dead-front switchboard layout.