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, current switches, other relays, solid state switches, etc. The dry contact input RIB® accepts local power to provide the low voltage (Class 2) power needed to activate the relay by closing 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 a 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, the relay contacts can be wired to switch any other power load or low voltage load. One model can be used for many installations.