Phoenix Contact 3212444 A double-level terminal block features a plug-based connection system where current and voltage are defined by the specific plug used, with standard specifications including a nominal voltage of 500 V and a maximum nominal current of 16 A. The connection method employs push-in or plug connections, applied to both the first and second levels of the terminal block, with a rated cross-sectional area ranging from 0.14 mm2 to 1.5 mm2. Mounting is typically done using the NS 35/7,5 or NS 35/15 type, with a distinctive black coloration.