Powered from AC or DC source, MicroMax GPS350 integrates Normally Closed AC/DC solid state relay that can interrupt up to 60 A with on/off cycles of less than 4 sec, and 80 A with 4-sec cycles or longer. Relay also provides voltage suppression which absorbs inductive energy released during on/off switching. Supplied in hardened enclosure for extreme conditions, MicroMax GPS350 can be programmed using built-in keypad or via USB. Unit functions in continuous, daily, dated, and interference modes.