The GS2AHT520 is an external frontal rotary handle from the TeSys GS range, designed to operate TeSys GS disconnect switches rated 32 A, 50 A, or 63 A under IEC standards. It gives you three handle positions — Test, O (off), and I (on) — with the handle padlockable in the O position for lockout/tagout. The red handle on a yellow front plate is the standard visual indicator for a disconnect function.
IP65 and where you use it
Rated IP65, so the handle mechanism and its seal keep out dust and low-pressure water jets. That makes it suitable for panel doors on washdown zones, outdoor enclosures, or anywhere the disconnect needs to survive a hose-down without letting moisture track into the switch. The handle mounts to the enclosure door frontally; the rotary shaft couples through to the switch body inside.