Genuine Hypertherm 128639 safety switch for:

Powermax1650 T100 Hand torch
Powermax1650 T100M Machine torch
Powermax1650 T100M-2 Machine torch
Powermax1000 T60 Hand torch
Powermax1000 T60M Machine torch
Powermax1250 T80 Hand torch
RT60 Retrofit torch for Powermax600/800/900
RT60M Retrofit torch for Powermax600/800/900
Powermax1100 RT80 Hand Torch
Powermax1100 RT80M Hand Torch
Powermax1250 T80M Machine torch