Ah, so it is maybe graphically similar to the double-throw switch schematic symbol. https://wiringengineabt.z19.web.core.windows.net/double-pole-double-throw-s

Ah, so it is maybe graphically similar to the double-throw switch schematic symbol. https://wiringengineabt.z19.web.core.windows.net/double-pole-double-throw-switch-schematic.html https://wiringengineabt.z19.web.core.windows.net/double-pole...