Using AC rated switches on DC circuit

[smashweld]

I have a 3 pin on off on rocker switch rated 10a 250v/ 16a 125v...want to use it on a 24v circuit to control 2 relays, if my el cheapo multimeter is telling the truth it's only 80 milliamps draw
Any risks?
I'm fairly sure it'll be fine! But wondering what could happen with heavier loads...

 

[Anguz]

if inductive they can weld together

 

[daleyd]

I have a 3 pin on off on rocker switch rated 10a 250v/ 16a 125v...want to use it on a 24v circuit to control 2 relays, if my el cheapo multimeter is telling the truth it's only 80 milliamps draw
Any risks?
I'm fairly sure it'll be fine! But wondering what could happen with heavier loads...

Switchgear (Switches, contactors etc) usually derated a bit for use on DC circuits, on most industrial stuff you will see 2 ratings - 1 for AC and another for DC.

If the draw is that low, I would think you should be fine - below is a pic of a switch contact block with the ratings - rated at 6a 230v ac it should also be ok for up to 3a 24v dc

 

[smashweld]

Thanks, that's a good help

 

[frank horton]

if it's that low a current it'll be fine.....just use a decent make.....not a Screwfix 50p special.....I always like Crabtree etc.....
PS....I used a vehicle rad switch to turn on off my mains solar water heater pump without probs for years....