Rated 63 A continuous current (Iu) on a 160 A frame, it handles 690 V AC 50/60 Hz and 500 V DC maximum operational voltage. The front terminal busbar connection suits panel builds where the disconnect doubles as a service switch ahead of a motor starter or distribution block. This is a pure disconnect — no overcurrent release, no undervoltage release, no communication module.
Sizing and fit — what the ratings mean
The 63 A continuous rating (Iu) on a 160 A frame means this disconnect is sized for branch circuits up to that load, but the frame itself can handle higher short-time currents. Power loss at 38 W maximum matters for thermal management inside a closed panel — derating adjacent components may be needed if the enclosure is tightly packed.
Mounts in the standard 76.2 mm wide (3-inch) MCCB cutout on a DIN-rail adapter or panel plate — the same footprint as the 3VA1 molded case circuit breakers. Front terminals accept busbar connection for the main circuit; the auxiliary and alarm switch contacts are wired separately via the HQ terminal block. Mechanical endurance is rated at 15 000 operating cycles — suitable for daily switching in a production line, not for high-cycle applications like a welding press that cycles thousands of times per shift. An optional motor drive (product extension) allows remote switching via a PLC output.