Mean Well MW 1000W Single Output DC-DC Converter Computer Uninterruptible Watt PSU 1000w Power Supply 48V 21A (SD-1000H-48 48V/21A/1008W/Power Supply)

NEW, MEAN WELL Power Supply.
Positive sensing. The +S signal should be connected to the positive terminal of the load. The +S and -S leads should be twisted in pair to minimize noise pick-up effect. The maximum line drop compensation is 0.5V.
RNegative sensing. The -S signal should be connected to the negative terminal of the load. The -S and +S leads should be twisted in pair to minimize noise pick-up effect. The maximum line drop compensation is 0.5V.
Open collector signal, referenced to pin4(GND). Low when PSU turns on. The maximum sink current is 10mA and the maximum external voltage is 13V.
These pins connect to the negative terminal (-V).
Auxiliary voltage output, 10.8~13.2V referenced to pin6(AUXG).The maximum load current is 0.25A.
Auxiliary voltage output ground. The signal return is isolated from the output terminals(+V & -V).
Founded in 1982, MEAN WELL is one of the world's few manufacturers dedicated to standard power supply products. It is ranked the 3rd in global power supply (DC output) makers according to a report by Micro Technology released in March, 2023. 99% of MEAN WELL sales are of standard power supply products sold under the MEAN WELL brand name. The other two companies' products are ODM/OEM.