End barriers and clamps mount on DIN rails and channels to prevent terminal blocks from shifting or falling off.

Terminal block jumpers and bridges connect terminal blocks to distribute a single electrical source to many. They eliminate the need to run individual wires to each circuit and are commonly used to save space in enclosed applications such as electrical panels. They can be cut to specific lengths to match the required number of poles. Additionally, it's important to note that jumpers and bridges are manufacturer specific and not universal.

Terminal block markers help identify wiring to assist with setup, reconfigurations during maintenance or repairs, and keeping track of voltage and amperage distributions.

Terminal block covers and partitions provide an additional layer of insulation between terminal blocks to shield them from damage. Block covers clip on the exposed side of a terminal block to close and protect the circuit from accidental touch. Partitions mount between sections of terminal blocks to help differentiate them and prevent electrical noise from spreading from one terminal block section to another.

These indicators attach to terminal blocks and have a LED that lights up to identify a faulty circuit when a fuse blows.