My home is wired with a 50 amp transfer switch for a portable generator. I just purchased an 8000 watt generator and was wondering if I can still use that transfer switch. The generator has a 30 amp( 4 prong ) outlet instead of the 50 amp( 4 prong ) outlet. Can I just replace the generator end of my power cord with a 30 amp( 4 prong ) connector, or do I need to install a new 30 amp transfer switch and make a whole new power cord.

You do not need to change the transfer switch. Replace the connector and things should be fine, if all other connections are in order.

Or just get one of these from any RV dealer.

eBay Motors: 30 Amp (Male) to 50 Amp (Female) RV Power Adapter (item 180332379143 end time Apr-27-09 16:58:06 PDT) (http://cgi.ebay.com/ebaymotors/30-Amp-Male-to-50-Amp-Female-RV-Power-Adapter_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c66 Q3a2Q7c65Q3a12Q7c39Q3a1Q7c240Q3a1318Q7c301Q3a1Q7c2 93Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZ item180332379143QQitemZ180332379143QQptZMotorsQ5fR VQ5fTrailerQ5fCamperQ5fPartsQ5fAccessories)

Or just get one of these from any RV dealer.

eBay Motors: 30 Amp (Male) to 50 Amp (Female) RV Power Adapter (item 180332379143 end time Apr-27-09 16:58:06 PDT) (http://cgi.ebay.com/ebaymotors/30-Amp-Male-to-50-Amp-Female-RV-Power-Adapter_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c66 Q3a2Q7c65Q3a12Q7c39Q3a1Q7c240Q3a1318Q7c301Q3a1Q7c2 93Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZ item180332379143QQitemZ180332379143QQptZMotorsQ5fR VQ5fTrailerQ5fCamperQ5fPartsQ5fAccessories)


The 30A input/50 amp output will probably NOT be UL Listed.

The 50 amp transfer switch is rated UP TO 50 amps, so connecting a 30 amp source will not overload the transfer switch.

Change the input plug on the switch to match the 30 amp output from the generator.