A DIN rail, also known as a ‘top-hat’ rail, is a standardised, 35mm wide metal rail with a hat-shaped cross section. It is widely used for mounting circuit breakers and industrial control equipment inside equipment racks.

In addition to the 35mm size rail there are other, less widely used types, including the 15mm, 7.5mm and the G-type rail. All DIN rails should carry British Safety standard certification, as with any electrical goo (more…)