Dry contacts

Tim_15

What are dry contacts on a heat timer. Can an electrical source flow through them from a limit control.

Alan(CaliforniaRadiant)Forbes

\"Dry\"

means they are not energized; it is a switch and will close on a call for heat to enable another device (boiler, relay, pump, etc.) and the manufacturer will usually rate the maximum load, i.e. 220 volts, 6 amps.

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Dan Peel

Not powered

If your limit control passes through any current then seperate the dry contact side with a relay. The dry contact is only a switch and may not have any power applied. Enjoy...Dan

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oil-2-4-6-gas

what model heat-timer and what is your application //////// B-B is your limit circuit wired in parallel with your aquastat its a dry contact you supply 1 side w/voltage