Phoenix Contact 3037009 To determine the terminal block's current and voltage specifications, it is necessary to consider the type of plug used, with nominal voltages ranging from 400V. The maximum continuous thermal current is 20A and can be achieved through a spring-cage connection, while the rated cross-sectional area ranges from 0.08 mm2 to 4 mm2. Additionally, the terminal block features multiple mounting options, including NS35/7.5 and NS35/15, with a color specification of gray.