A line of electromechanical relays for the power switching of lights, horns, compressors, window and wiper motors, security system components, fuel pumps, and related equipment is introduced by Greenwich Electronics Inc. The relays are sub-miniature PCB-mounted devices that feature heavy-duty silver alloy contacts and are available with SPST normally open and SPDT contact forms. They include the Model HG4195 and Model K with 30- or 45-A capability, 75 V dc max. switching voltage, and 500 W power.