This DPDT 30 Amp 240 V Relay Kit should be used in conjunction with an Ovation™ ATS for connection to certain generators for signaling purposes.  The generators that we have tested with our Ovation Series ATS that require this Relay kit include:  Briggs and Stratton® (Cutler-Hammer®), Cummins®, Generac® and Kohler® stationary generators.  Please note that this is not a complete list of generators that may require this relay for connection with our Ovation™ ATS.