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If you get 120volts between the two hot lines, that's not enough voltage for the coil of the third relay. It won't actuate (instead, it makes a rather angry buzzing noise), which leaves both hots on the socket disconnected.I have not seen 208/240 volt relays close at 120 volts, myself.
If you get 120volts between the two hot lines, that's not enough voltage for the coil of the third relay. It won't actuate (instead, it makes a rather angry buzzing noise), which leaves both hots on the socket disconnected.
I have not seen 208/240 volt relays close at 120 volts, myself.