The GS2AH105 is a direct frontal rotary handle from the Schneider Electric TeSys GS range, designed for front-mounting on a GS-series disconnect switch rated 1250 A IEC. It provides two handle positions — O (off) and I (on) — with a black handle and integral padlocking capability for lockout/tagout compliance.
The 1250 A switch rated current (IEC) tells you this handle is sized for the largest TeSys GS disconnect enclosures — it operates the switch mechanism, not the current path itself. The handle's mechanical interlock and padlocking provision (with padlock) are what matter for safety isolation procedures: the O-I positions give clear visual indication of switch state, and the padlock feature allows multiple padlocks for group lockout.
The handle is listed to IEC standards, which governs its design for use in IEC-based switchgear assemblies. No UL, CSA, or other regional certification is noted in the listing — verify acceptance for your jurisdiction if replacing a handle in a UL 508A panel.