Phoenix Contact 3072804 For manual operation of the disconnect slide, the terminal block with a knurled screw must be disconnected, suitable for applications at nominal voltages of 500 V and currents up to 41 A. The connection method is a screw connection with one level, allowing for rated cross sections ranging from 0.5 mm2 to 10 mm2, and it can be mounted using the NS 35/7.5, NS 35/15, or NS 32 types.