The Series 51 is a versatile flush-mounting switch collection which offers a low behindpanel depth - just 34mm including the contact block. With a compact mono-block design, they mount faster and easier, and provide more room for additional system components.

The range comprises expertly-designed illuminated pushbuttons, indicators, selector switches and key switches in a choice of sizes, shapes and materials – hard-wearing plastic and aluminium. Many different lens and bezel colour combinations are possible to create the best functioning and looking controls.