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Relay symbols.svg Schematic symbols of relays Electricalsymbolslibrary svg SPSTSwitch svg SPDTSwitch svg DPSTsymbol svg UTC Electricalsymbolslibrary svg User FDominec et al SPSTSwitch svg Iainf July UTC SPDTSwitch svg Iainf July UTC DPSTsymbol svg Iainf July UTC derivative work Moxfyre talk Uploaded with derivativeFX