Is there a 120 volt Relay-25?
The Relay-25 fits in a standard single gang box. It is used in conjunction with the 4iE® Smart thermostat series as well as the Tempo thermostat, in order to expand the original 15 amp capacity. For special applications that require 120V, a 120 volt relay-25 is availible.
See the product specifications and wiring diagrams here.