These Terminal Blocks are preferred for applications using wires of a large cross section. The wire is crimped to a ring/fork type lug (ferrule) and is screwed on to the flat current bar on the Terminal Block. The range includes Terminal Blocks for wire sizes from 16 sq-mm to 120 sq-mm. CTS35LS Terminal Blocks have a threading in the current bar, eliminating the need of locking nuts. Partition/Isolation Plate must be used with every Terminal Block. The Protective Cover is designed to be mounted on a specially designed slot in the Partition Plate.