The FD series is APEM's latest innovation in the wide range of illuminated pushbutton switches. Designed after a traditional pushbutton, the FD series integrates an innovative technology of superposed filters which reacts to green and red light only, allowing the display of different legends depending on the illumination color. The FD series includes two different legends on a single switch, making it ideal for integrated designs where additional switches or indicators are not necessary. Three standard high quality, screen printed legends are available (I /O, ON/OFF, and START/STOP) with additional legends upon request. The FD series pushbutton offers an attractive combination of high quality luminosity with the sealed and shock-resistant durability expected from APEM. The large but lightweight FD series is available with Ø 24 mm threaded bushing or Ø 26 mm snap-in mounting, and in single or double pole.