FeaturesM22 now offers an attractive chrome metal bezel that will enhance appeal to your 22 mm pushbutton applicationsMost pushbutton operators and contact blocks exceed 5 million mechanical operationsThis highly versatile line features field convertible functions and customized laser engraving capabilitiesLED indicators offer 100000 hr of life in high vibration environments and lenses specifically designed for LED illuminationAll components feature an IP66 rating and some carry IP67 and IP69K for washdown environmentsRound plate for use with emergency stop operators22.5 mm size