The 20-1050CUL-DC is a 12 VDC to 120 VAC inverter with a built-in battery charger/conditioner, transfer relay and KKK Spec 12V Portable Equipment Charging Circuit. This unit is equipped with an AC line cord for connecting AC input power (shore/utility power) and a receptacle with a Ground Fault Circuit Interrupter (GFCI) for AC output. This enables you to plug AC loads directly into the inverter. The DC cables have quick connectors to facilitate installation and pre-wiring of emergency vehicles. The 12V Portable Equipment Charging Circuit has a spring clamp for ease of installation.
The transfer relay is powered by +12Vdc, the unit must be connected to the DC source for the transfer relay to work. The 20-1000TUL-DC is a 12 VDC to 120 VAC inverter with transfer relay and KKK Spec 12V Portable Equipment Charging Circuit. This unit is equipped with an AC line cord for connecting AC input power (shore/utility power) and a receptacle with a Ground Fault Circuit Interrupter (GFCI) for AC output. This enables you to plug AC loads directly into the inverter. The DC cables have quick connectors to facilitate installation and pre-wiring of emergency vehicles. The 12V Portable Equipment Charging Circuit has a spring clamp for ease of installation.
The transfer relay is powered by 120VAC, the transfer relay will engage without the unit being connected to the DC source.