Front mounting illuminated momentary switches to IP53 The clear actuator versions, have fully illuminated red actuators and allow customers the option to add their own marking and legend (see 507-485, 507-302, 507-352 & 507-374) Versions marked with 'OPEN' arrows are available with blue, red or green ring illumination 5A 12Vdc versions have NO/NC contacts min. 50,000 cycles (increasing to 1,000,000 at 100mA) 50mA 24Vdc versions have NO contacts with min. 5,000,000 cycles Designed to meet the requirements of EN81-70 Panel mounting into 39mm knockout (To facilitate front panel mounting of the 12V versions, the screw terminal block can be easily removed from actuator housing, by depressing 2 retaining clips)