Carrier HN 680 001 Model 821 Time Delay Relay 46BA59330 / P284-1203
These items are pre owned but have been cleaned, bench tested prior to listing by a certified hvac journey man to ensure functionality. Item will also be tested in running unit prior to shipping to ensure that the customer receives a fully working timer relay; as I’m aware having no heat is not ideal.

I’ve sold about 16 of these with zero complaints;

I also have brand new 821 relay and other new old stock parts for the same style furnaces