ELCB is place in the incoming. You put only for specific load? very wrong.

The water heater breaker are really good. Well unless you buy some unknown brand of water heater than is difference. You can test the water heater breaker frequent to reduce the risk.

If you don't know much of electric and current please skip some lunch use the money to hire proper electrician. You don't want to become Automan.

[quote=NelsonBoy,Aug 24 2011, 08:18 AM]
30mA normally use for water heater Not incoming

[/quote]
30mA is not sensitive enough.
If you guys dont have anything to contribute rather than comment, please leave this thread alone.

Forum is place for people to contribute and not comment.

Thank you.

[/quote]

Wow, you own this forum? Can you define contribute and not comment? and point us the the rules and regulation area so we know your statement is correct.