The 016870022, also known as the PR5, is a symmetrical mounting rail used as an accessory for terminal block installations. It is constructed from durable zinc-plated and passivated steel, ensuring robust support for mounted components. The rail has a height of 15 mm and a width of 35 mm. To prevent flexing and ensure stability, fixing is recommended every 500 mm. For improved accessibility, it can be used with EM45 offset brackets to achieve a 45-degree orientation.