Phoenix Contact 3036042 A multi-level terminal block features a nominal voltage of 500 V and a maximum current rating of 20 A with six connections. The connection method is a spring-cage design, and the cross-section varies by level from 0.08 mm² to 4 mm² at each of the first, second, and third levels. The terminal block is mounted using one of two types: NS 35/7,5 or NS 35/15, with a standard color of gray.