the 400 amp generac switch has a single 400 amp rated switch, at least the ones i installed years ago. They were so damn expensive, hardly anyone uses it UNLESS you have a generator that outputs greater than 200 amps, than you cant use a 200 amp or double 200’s. In this case, you HAVE to use the larger switch.
parts manual for 400 amp switch….single mechanism
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if your lucky you have a meter set on a pedistal away from the house and you can add the transfer switches and generator away from the house. A big issue is where do you place the switches. They are aprox 14” x 30” units.
you can use an older generac switch on a newer generator with minor modifications (adding a fuse block for T1 power). You can use a newer generac transfer switch on an older generator, but the enclosed load shed module most likely wont work (its a crapshoot whether the older governor controlled generators will provide true enough waveform for the SACM load sheds used today, as compaired to the electronically controlled newer units). But you can always add SMM load shed modules, as these remotely sense a drop in frequency and shed a load. Be aware though, there are a series of generac units out there…..not sure of the model number though, that only came from factory with 58 hz output. Have no idea why this was done. They play havoc with the SMM load shed modules, and make clocks run slower when on generator.
, but I did go back and find the system I was thinking of.
