Energy Buys LLC (406)690-1572

Xantrex C-40 PWM (Pulse width modulator) controllers can be used as PV charge controllers, DC load controllers or DC diversion regulators in 12 and 24 volt systems (the C40 can only be used in 48 volt systems). They operate in only one mode at a time so to provide both PV charge control and low battery load disconnect, two controllers will be required. When used as a charge controller, the device includes a field adjustable bulk and float setpoints and performs automatic equalization every 30 days or the optional temperature sensor thus providing a more accurate battery charge controller. An optional LCD display shows battery voltage, array amps and watts, cumulative amp-hours and a separately resettable trip amp-hour measurement. The digital display is available for mounting on the front of the charge controller or using a 50 or 100 foot cable for remote mounting in a double gang electrical box. UL listed, 2 year warranty.