Quote:
Originally Posted by patrickt
Not only will they share load, they will shift load as well. As one relay heats up, and resistance increases, current will automatically flow down the alternate path. For a fun bar room bet, have two parallel paths serving the same 30 amp load. If all things are equal, fifteen amps will flow down both paths. But if you put a five amp fuse on one leg, the fuse will not blow because the increased resistance of the heated up fuse will send the current down the other leg. The same holds true for a one amp fuse. All magically done with no user intervention.  |
I wasn't aware of that, but I'm sure my dual relay setup is operating as you indicate. When the original relay failed a few years I doubled up, installing them in parallel, and I've had zero issues since.