The single-contact 400A high-power cam power connector independently designed and produced by KUPO has a non-conductive locking screw passed through the copper guide pin to stably fix the guide pin in the insulating sleeve. It is easy to install and disassemble without using tools, and can be compatible with international brand 400A power connector. Compatible with CAM-type 400A high-power cam power connector. It is suitable for temporary power supply for indoor and outdoor stage performances, film shooting, exhibitions and displays, and professional connections for generators and other equipment.