RSP-3000 series is a  3000W enclosed type switch mode power supply with power factor correction (PFC Function), featuring 15.6W/inch3 of extreme high power density. The RSP-3000 series can provide full output power up to 50 Deg C. With the innovative trim function, output voltage can be adjusted from 20% to 110% of the rated voltage by adding 1-5.5v of external control voltage. Standard functions include remote sense, remote ON/OFF control, 12v/0.1A auxiliary output, and alarm signal output (both relay and TTL signal). The RSP-3000 series uses constant current limiting plus delay shut down as overload protection which enables the unit to power both capacitive and inductive loads and still provide full protection for the customers system at the same time. If you require a continuous constant current for charging purpose, just select through the jumper then the "shut down" mechanism can be cancelled.