Phoenix Contact 5043321 The thermoelectric voltage terminal block pair is a specific type designated as TC N, with a nominal operating voltage of 400 V and a maximum current capacity of 1 A. It features four connection points and two distinct positions, utilizing a screw connection method at one level with varying cross-sectional areas ranging from 0.2 mm² to 4 mm². The terminal block can be mounted using three different types (NS 35/7.5, NS 35/15, or NS 32) and comes in a gray color.