Installing an Automatic Transfer Switch?

I’d like to install a standby generator to power all of my home’s circuits. I have a 200A service. I am going to need to have the meter pulled, so I can pull the service conductors out of the main panel and into an automatic transfer switch. Is it okay to have the service conductors run through this transfer switch non-fused before entering the main panel, or do I have need to have a Service Disconnect breaker installed upstream of the transfer switch. I.e., replacing the entire meter enclosure with one that is equipped with a 200A service breaker, or alternatively, finding a standalone Service Disconnect breaker in an enclosure mounted alongside the transfer switch, with the service conductors routed through that prior to entering the transfer switch? I was just worried because, if the service conductors traveled through the transfer switch upstream of the Main Breaker, if there was a fault in the transfer switch, the only current limiting device would be from the utility pole, which is likely thousands of Amperes. Seems crazy to me, but I don’t know what’s considered the norm for this kind of installation. Thanks

NEC article 230 covers this. The transfer switch has to be in between a service rated disconnect and the main distribution panel (whatever that may be). Man, you must have one helluva generator. Is it multiphasic as well? Heh, 200A 240V loads running off an automatic remote start generator…when Armageddon hits, I’m coming to live with you. 48,000 watts of potential load…dude, this is a Tim Allen "arr arr arr arrrrrgh" moment for me.

I really gotta say, I’ve never seen a set up like this. I just don’t see many ultra-high end installs. Do you have any money left? Need a decent HVAC guy on staff?

One Response

  1. callipygenous Says:

    NEC article 230 covers this. The transfer switch has to be in between a service rated disconnect and the main distribution panel (whatever that may be). Man, you must have one helluva generator. Is it multiphasic as well? Heh, 200A 240V loads running off an automatic remote start generator…when Armageddon hits, I’m coming to live with you. 48,000 watts of potential load…dude, this is a Tim Allen "arr arr arr arrrrrgh" moment for me.

    I really gotta say, I’ve never seen a set up like this. I just don’t see many ultra-high end installs. Do you have any money left? Need a decent HVAC guy on staff?
    References :
    I hope I was able to help. I really am impressed.

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