CONTA-CLIP has extended its SRK series of screw connection terminal blocks, adding approximately 40 new double level models for nominal wire cross sections between 2.5 mm² and 10 mm². The new SRKD double level terminal blocks are available as standard models with two potentials and 2 x 2 connections, with four connections on one potential, or as a protective Ground Terminal Block with a snap-on PE foot contact. The new products are compatible to the existing SRK accessory range.