Touting variable speed operation, a new series of rotary ac switch has three major functions. It serves as a main power switch; as the switch is rotated into the on position, it enters the ...

Elma MR50 rotary switches are small yet robust for compact control panels and portable devices in building site machinery, vehicles and agricultural applications. Operation is across -45 to +85°C (IEC ...

When you need to make very tiny measurements, even noise in closed relays can throw you off. [Marco] was able to observe this effect and wanted to build a switch that didn’t have this problem. He ...