Phoenix Contact 3044720 The terminal block's specifications are determined by the type of plug used, with a nominal voltage of 500 V and a corresponding current rating of 30 A. The connection method is a screw connection, and the cross-sectional area ranges from 0.14 mm² to 6 mm². Additionally, the disconnect zone requires mounting according to the NS 35/7,5 or NS 35/15 standard, with a color specification of gray.