DIN rail

DIN rail examples:
(1) DIN rail (2) DIN rail with breaker and residual current device (3) DIN rail with terminal block

A DIN rail is a standardized metal rail that is widely used in the electrical field to mount many different types of electrical equipment including breakers, fuse holders and terminal blocks. These components will either snap onto the DIN rail or can be tightened down with a screw.

=Terminal blocks

Terminal blocks are used to create safe and secure connections. They are frequently used to transition between wire types or are connected together to create a busbar for parallel connections.