Phoenix Contact 1410656 The coupler connector is designed to be used in conjunction with a specialized tool and comes in black coloration. It features five positions and can accommodate conductor cross sections ranging from 1.5mm² to 6mm², making it suitable for 690V AC systems with maximum currents of up to 35A. The connection method employs a screw-and-socket design, while the cable diameter requirement ranges from 8mm to 21mm, with an optional variant for use with the tool, providing versatility in installation applications.