Want to prevent anyone from tampering with your hazardous kit? This key switch from Siemens keeps it firmly locked down. You can use it to activate one of two circuits by simply inserting the included key and rotating it left or right by 45°. The locking mechanism lets you limit control to trained and authorised personnel, lowering the risk of an injury. Devices like this are a vital safety measure in power distribution, alarm panels and industrial automation networks.

• AC or DC operating voltage for use with standard electrical sources
• Works without a glitch in temperatures between -25°C and +70°C
• Mounting dimensions of 49.4 (H) x 29.5 (W) x 49.7mm (D) let you squeeze it into tighter spaces
• Tested up to 6kV for protection against sudden electrical surges

Yes, it can. This key switch has an IP67 rating, which indicates that it's fully dust-proof, as well as waterproof up to a depth of 1m.