Cebora 130 Turbo MIG - Thermal Switch Info

[sparkout]

The plastic case which holds the thermal switch against the transformer windings has broken on my Cebora Turbo 130. I have not found any source for the replacement part so was thinking to just make a suitable bracket and use one of the easily available switches instead.

Does anyone know the cut out temperature spec of the switch? The old plastic part of switch did have some part no./spec on it but it was either intentionally obscured or faded through age.

 

[eddie49]

Hello and welcome to the Forum !
I found this reference ( not specifically for the Cebora ) :
https://weldtalk.hobartwelders.com/...6-mig-welder-transformer-operating-temp-range
That mentions 145 F, about 63 degrees C, which sounds like a relatively safe temperature limit.

 

[sparkout]

@eddie49. Thanks for the hobart link. I will have a search of the schematics/parts for some of the major manufacturers and see what else I can find although most seem not to specify.
For now I managed to do a crude fix to the plastic bracket which holds the original Cebora switch in contact with the transformer. I have an IR temp gun so when I get time I will remove the original switch and check what temps it opens & closes again.