A new series of double ridge waveguide electromechanical relay switches performs over broader frequency bands, making them ideal for applications involved with electronic warfare, electronic countermeasures, microwave radio, VSAT, radar, test instrumentation, and research and development. This comprehensive selection of 12 double ridge waveguide electromechanical switch models is now available, featuring broadband multi-octave frequency coverage spanning 6.5 to 40 GHz in SPDT and optional DPDT configurations. Designs support WRD-650, WRD-750, and WRD-180 waveguide sizes. Impressive typical performance includes 2.5 dB insertion loss, 80 dB isolation, and up to 8.5kW power handling capability. Desirable features include latching self-cut-off actuators, TTL logic, position indicators with manual override, and patented motor drive with arc suppression. These fully weatherized rugged MIL-grade packages are designed for 100% humidity exposure across -40 to +85ºC operating temperatures and support an environmentally-sealed quick-connect DC-control connector with mate.