Boards in 1 GitHub repository, designed in KiCad, that use the RTD14012F by TE Connectivity (-40℃~+85℃ 10A@400VAC、16A@250VAC 12V 16A 360Ω 400V@AC 400mW 6ms 8ms AgNi One set changeover: 1C (SPDT - changeover) DIP,12.7x29mm Power Relays ROHS). See how each wires it, with its parts, size, README and files; the RTD14012F’s symbol, footprint and pinout are on its own page.
PE1RGU/hf-antenna-switch
Remote HF antenna switch: 3 radios x 4 antennas (path to 8), outdoor relay unit with a hardware safety chain, controlled over Cat6 from a shack interface. KiCad 10, open hardware, designed together with an AI.