Phoenix Contact 1044423 The fuse terminal block is a modular unit with various specifications. It has glass or ceramic fuses in the G type configuration, measuring 5 x 20mm and rated for 250V nominal voltage. The thermal continuous current capacity is 28A, and it features screw connections with a rated cross section of 4mm2. The available cross sections range from 0.14 to 6mm2, also using screw connections. The terminal block can be mounted using the NS35/7,5 or NS35/15 mounting types, and its body is typically gray in color.