I agree as to resetting the gas valve, if the gas valve is electric. Now, I cannot speak for the entire world ... but in my experience, electric valves are few and far between.
Absent such a valve, there is no need for anything special - it all - gas and power - gets reset when the trigger mechanism is reset. That's all you need.
As for the difference in resetting a shunt trip vs. resetting a contactor .... it is true that a shunt trip will require a second step to restore power. Not only must the trigger mechanism be reset, the breaker must also be reset. Which method you use is purely a design choice; I can point to situations that favor each.
Last edited by renosteinke; 04/25/09 11:35 PM.
