Cant identify this machine symbol.

[heinz57]

Ive looked everywhere and can't find the definition of this (see link) welding machine symbol. Its off of a Messer 200amp TIG welder thats about 15 years old. I think it relates to the foot pedal but this could be completly wrong. Im sure the experienced guys can help, thanks fellas.

 

[shenion]

Located above a 2-pin connector? That would be the remote contactor switch.

 

[Robotstar5]

I would say it's a switch symbol.

 

[heinz57]

Ah-ha!!! Thanks fella's, it's been driving me mad for the past couple of days. I thought it could possibly be the foot pedal switch but I guess not.