Similar to the function of a push button, the key switch operates in a similar fashion, typically with an on/off function. The key differentiation between the two however is that the key switch is more secure, requiring a key to control the device. Schneider Electric bring you the Harmony XB4 series of key switch, designed with your electrical industrial controls security in mind. The Harmony XB4 series of products produced by Schneider Electric are tested rigorously to ensure a high quality product reaches you, that's why there's an 18-month warranty with this product.
Strengths
Tough Chromium plated metal, giving the key switch a smooth, silver finish. Highly resistant to corrosion
Compact 22 mm mounting diameter, perfect for when space is tight
18-month manufacturer warranty with Schneider Electric
Supplied with contact blocks, can be mounted inside certain enclosures
Silver alloy contacts for reduced contact resistance
Selector Switch XB4 features two positions, capable of turning at 90° angles
Supplied with contact blocks
Applications
Dangerous equipment such as motors that requires human intervention to operate
Public buildings to control lighting in rest rooms, corridors etc