bikerboy108
Receiving a whole house Generac 16 kw Generator today...70351 ... They keep backordering the generac 150 amp transfer switch # RXSW 1503 A3 ....   Should I wait? ..Any other options ? Best Option?

Thanks
Quote
Gray
A 200 amp Tfer switch will also work...that is what came standard with my Honeywell (Generac) 16kw. Do they have 200 amp models in-stock?
Quote
Gray
Ziller has your 150A Tfer switch showing in stock right here: https://www.zillerelectric.com/collections/generac-residential-transfer-switches/products/copy-of-generac-rtsw150a3-150-amp-service-rated-automatic-transfer-switch
Quote
bikerboy108
Nope they are back ordered till Jan. 8 ....None of the online  sellers have one of these in stock...  Was told by Generac and Ziller and others since I have a 150 amp main panel MUST use the  RXSW 1503 A3 not the 200 ??   checking on local distributors to see if they might have one
Quote
bikerboy108
Anyone know of any in local stock?
Quote
Geoff Z
Thank you for calling and letting me know you found the switch elsewhere. I'm glad. January 8 is when it is tentatively scheduled to leave Generac. Transit time to us will be a few days. Our receiving processing and shipping will will take a few more days. Could be a week and a half after. We just sold out and I haven't had time to mark it out of stock. I have never one time heard of an inspector allowing a 200a switch on a 150a service. Even if using 200a SER cable between transfer switch and panel and knowing you are terminating to a 150a main breaker. I would argue the main on the house panel would not allow more than 150a on the system. NEC doesn't see it that way.
Quote
Gray
Mr. Z,

Yes, you are correct, that seems sort of gnat strangling. If 150 is what is supplied, why would the capability (in excess thereof) of the equipment matter.
Quote
george6488
If panel is rated for 200amps.........install new main breaker (and wiring) and use 200amp transfer switch. The 150amp transfer switches are more expensive than 200amp so it is a trade-off.
Quote
Geoff Z
Purchased separately the switches are the same price. The 200amp included with a generator package is cheaper. He has a 150amp service. That is a good idea to change the panel main if it could be found. However I fear the panel would only be rated at 150amps. The other consideration if it is an overhead service he would have to confirm he has 200amp wire up to the weather head. 
Quote