Phoenix 3100091 A thermoelectric voltage terminal block pair is specified with a nominal voltage of 400 volts and a maximum current capacity of 1 ampere. It features four connection points and two distinct positions, secured via screw connections and available in various cross-sectional areas ranging from 0.2 to 4 square millimeters. The terminals are mounted using the NS 35/7.5, NS 35/15, or NS 32 system and have a gray coloration.