WR-TBL Terminal Blocks Würth Elektronik WR-TBL Terminal Blocks adhere to some of the highest quality standards, making them ideal for many applications. These applications range from industrial and control to security systems, automation, and more. Numerous configurations can be developed for specific applications. Many clamping technologies for fixed-mount and pluggable connectors are available from Würth Elektronik. Screw clamp terminal blocks include the following systems: wire protector, rising cage clamp, and excenter clamp. Screwless terminal blocks are available in spring clamp and push-in systems. Pluggable terminal blocks are available in screw, screwless, and IDC systems. Additional features include flanges, latches, hooks, and the possibility of reversed gender. Each product is type-tested and approved to reflect the highest international standard. WR-TBL terminal blocks are RoHS and REACH compliant.