Phoenix Contact 3038529 A double-level spring-cage terminal block is available with a nominal voltage of 500 V and a maximum current capacity of 22 A, utilizing a spring-cage connection for both the first and second levels of the connection. The rated cross-sectional area is specified at 2.5 mm2, with a range of 0.08 mm2 to 4 mm2 being available, and this product can be mounted using either NS 35/7.5 or NS 35/15 mounting types, distinguished by their blue color.