Rotary Switches

Rotary Switches, as the name suggests, operate when rotated and are often used in applications that demand 2 or more switching and circuit changing operations to be carried out by the same switch.

A Rotary Switch, often called a Cam Switch, contains a central spindle and a contact arm with an array of terminals arranged in a circle around the spindle. When the rotary switch is turned it can switch between these terminals are their associated circuits, there is usually a detent system that provides positive feedback in the form of a click and a degree to retention ensuring the circuit is held until the switch is turned again. Rotary switches can contain many terminal layers within its construction allowing for a greater range of switching options.

Rotary switches were a common occurrence on early Television sets, CB radios and are commonly found in many industrial applications such as applying or cutting the primary circuit power or for switching between various operational systems of a process.

Kempston Controls, a leading stockist of electrical and electronic components stocks a select range of Rotary Switches from market leading brands including Eaton, Kraus and Naimer, ABB, Moeller, Salzer and more. Give our dedicated sales team a call on +44 (0) 1933 411411 or use the contact form above to discuss your Rotary Switch requirements.