Illuminated Momentary Action Pushbutton Switch Available in 18mm and 25mm square bezel sizes Wedge base lamp required: 6V, 12V or 24V. Available separately Eaton RMQ 16mm Range A range of control devices with an IP65 protection rating and conforming to IEC 947-5-1. Standard fixing aperture is 16mm. Behind panel depth (including terminals) is only 49mm. ,The devices can be butted together allowing a greater number of devices to be fitted into a smaller area compared to 22.5mm devices. ,One or two normally open or normally closed contacts, which are available separately in this range, can be fitted to each switch. Colour coded contacts 230V/4A, having low current voltage switching with a life expectancy of three million operations.