The GS2AHT120 is an external rotary handle from the TeSys GS range, designed for front-mounting on a 30 A compact UL disconnect switch. It provides three handle positions — Test, Off, and On — with the Test position allowing mechanism check without closing the main contacts, which is useful during commissioning or lockout verification. Rated for NEMA 3R/12 environments, the handle assembly suits indoor or sheltered outdoor enclosures where rain, sleet, or falling dirt are a concern — NEMA 3R covers rain and sleet resistance, while NEMA 12 adds protection against circulating dust and dripping non-corrosive liquids. The red handle and yellow front plate are standard for disconnect visibility in a panel. The handle includes a padlocking provision, enabling lockout/tagout compliance at the disconnect point without needing a separate padlock adapter.
The 30 A switch rated current is the maximum continuous current the disconnect switch (not the handle itself) can carry under normal conditions. The handle is the operator interface — it drives the switch mechanism, so the handle's mechanical rating must match the switch's electrical rating. This handle is specified for use with the GS 30 A Compact UL disconnect, so the pair is coordinated. NEMA 3R/12 means the handle assembly is sealed against rain, sleet, and dripping water (3R) plus circulating dust and non-corrosive liquids (12). This is a common spec for outdoor or washdown-adjacent enclosures in food processing, water treatment, or light industrial settings. The Test-O-I handle positions allow the operator to test the switch mechanism (Test) before closing the main contacts (On), or to positively isolate the circuit (Off). This is standard for disconnect handles that need to support lockout procedures.