The GTMS-LT is a 3 phase earthing switch for grounding of busbars during inspection, maintenance, and repairs or for grounding capacitor banks. The GTMS-LT can be installed vertically or underhung. The switch can be provided as either a 3 phase unit, or a 4 phase unit with manual or motor operation, and is available from 15 kV to 500 kV and 20 kA/3s to 60 kA/3s.