
The WEL2210R is a robust red 40 mm mushroom-head twist-to-reset control/emergency switch, typically mounted on a stainless steel GPO plate. It features dual isolated contacts — one NO (normally open) and one NC (normally closed) — supporting a wide current range up to 10 A at 24 VDC, down to 5 mA, with ≤50 mΩ contact resistance and >100 MΩ insulation resistance. The unit measures approximately 70 × 115 × 50 mm (W×H×D) and is rated for operation between –25 °C and +55 °C.