The Hercules 3 is a trigger cord style power controller. It provides the opportunity to utilize an independent 15 amp outlet to run an appliance via the cord i.e. operate a dehumidifier. Your gear can be activated by the trigger cord set via an environmental controller or timer. The Hercules 3 comes with a 15 foot trigger cord set and a heavy duty ballast rated relay to handle the heaviest of power loads. Will operate any 120 volt appliance at 15 amps. Plastic enclosure resists dust, rust and moisture.