What happens if we exceed output voltage ratings of SSR?

[teepee]

Hello!

If I have a SSR with output voltage rating of 240VAC. Is it gonna blow if the voltage across output terminals is above 240VAC when there is no control voltage. I mean that the relay is not turned on.

When the relay gets control signal then the voltage is max. 240VAC.

Teepee

 

[DrWhoF]

Re: Voltage ratings

I think most of these devices should withstands voltages of up to 300Vac with or without control signal.
DrWho

 

[teepee]

Re: Voltage ratings

But is there any difference if the control is on or off?

The voltage is nearly 400VAC when the relay is OFF-state.

There is one relay connected to first phase voltage and another relay connected to second phase voltage. Relays are controlled separately so phases are swapped.

When the other relay is ON the voltage over another relay is same as between two phases.

teepee

 

[DrWhoF]

Re: Voltage ratings

This voltage seems to high for standard 240Vac device.
I think you should find one rated for 400-630Vac.
DrWho