Phoenix Contact 1079069 To ensure safe connections, the terminal block must be disconnected first to prevent exceeding the maximum load current, which should not exceed the total current of all connected conductors. The current and voltage ratings are determined by the type of plug used, with a nominal voltage of 400V and a maximum current of 20A. A push-in connection method is recommended, and the rated cross-section range is between 0.14mm² to 4mm². Additionally, mounting hardware such as NS35/7.5 or NS35/15 is required for secure installation, while the color coding is gray.