Din Rail
A DIN rail is an industrial metal rail designed to hold electrical components such as terminal blocks and circuit breakers. DIN rail is standardized in size and shape so that electrical equipment can be easily mounted and dismounted. This is a common practice in enclosures for many sorts of electrical control devices. When we talk about DIN rails, we're really talking about two things: the relatively simple guide rail that makes it easy to attach and remove parts in an enclosure, and the global standard (IEC 60715) that defines not just the size and shape of the rail but also how parts should be attached to it.
What makes DIN rail systems functional is their modularity, which allows a great variety of components to be mounted on the rail. Unmated components can be mounted on a platform by using an enclosure base, and mounted on both base and rail when using an enclosure cover. Then, from the inside out, with either a horizontal or vertical wiring layout, the assembled system can be connected to incoming signals and outgoing power. DIN rail systems boast not only ease of configuration but also, thanks to split modules and covers, ease of reconfiguration. They can be organized to accommodate whatever need arises in transitions to new installations, making them a common sight in both industrial and commercial enclosures.
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