RIB® Dry Contact Input Relay RIB21CDC Enclosed Pilot 120-277VAC 10A SPDT RIB21CDC

The dry contact input rib series offers all the advantages of the standard rib line; plus it can be activated by a wide range of dry-contacts such as thermostats switches other relays solid-state switches etc. The dry contact input rib provides the low-voltage (class 2) power needed to activate the relay (self-powered) - just close the dry-contact input. The power to energize the relay can be brought to the relay on a separate pair of wires along with the control output of the controller or can be a local power source near the relay. The relay contacts are isolated from the input power and the dry contact input; thus they can be wired to switch any other power-load or low-voltage load (see specifications for contact ratings). One model can be used for many installations (model rib21cdc can operate from any voltage from 120vac - 277vac; see specifications for the input power of other models).

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