Relay to control mains

[bc250]

I'm thinking to use a double pole relay to control devices powered from mains (as a remote controlled plug socket), one contact of the relay for the live wire and the other for neutral.
If the relay fails, is it possible for one contact to remain stuck (live) and the other to disengage (neutral). Is this type of failure possible? What can I do to eliminate this risk?

 

[AnalogKid]

Yes it is possible. One way to reduce the risk is to oversize the relay, such as 20 A rated contacts for a 5 A load current.

ak