Phoenix Contact 3024478 A knife-disconnect terminal block features a test socket with screws for easy insertion of test plugs, rated for 400 V and 10 A nominal current. Connections are made through screw connections with cross sections ranging from 0.2 mm² to 4 mm², suitable for both the first and second levels of connection. The mounting options include NS 35/7.5, NS 35/15, and NS 32, while the terminal block itself is a gray color.