Transfer switch 50 amp

[djred870]

Does anyone know the proper transfer switch to replace a 2000 winnebago chieftain mine went and The original owner put in a wrong one he replaced it with a 30 amp It has problems now with wiring and factory installed says it has to be 50 amp I need to know what was or is factory make to find online if possible please any help

[wa8yxm]

There are basically two types of 50 amp transfer switches.. One has two sets of contactors (Relays) and the "At rest" (no power) state is "Not Connected" when you plug in one set locks in and in so doing locks out the other set, When you start the generator, after a time out (usually 30 seconds to 1 minute) the other set locks in and locks out the first.. I can see an advantage to this but I also like the concept of KISS.

Intelletec models the "At Rest" (no power) is connected to Shore, when you start the generator, after the time out, it transfers.

There is also a 3-way transfer used on some rigs with Inverters (I actually suspect the 1st one is a 3-way, that would put the at-rest (no shore or generator power) mode "INVERTER" and make sense.

So unless you need a 3 way, I would go with the Intelletec type.

Page 2..... The only other difference is size shape and mounting, that is, the holes may be in different places or one make may be wider or thicker, so if it fits. it should work. Since the 30 amp switch is smaller physically the PO already drilled new holes.

the bottom line:
No need to worry about the make and model, they all should work the same, just worry about the size of the box.

[BFlinn181]

If you go to this link, you'll find all the wiring diagrams for Winnebago Chieftains. 30 amp shore power uses a 3 conductor cord, a 50 amp service uses 4 conductors. I'm curious how the previous owner changed from 50 amp to 30 amp. If he downsized to a 30 amp ATS, did he also rewire the service panel to tie both legs of the 50 amp service to the single hot in the 30 amp? Check all the wiring to see if other mods might have been done.

[Lt Dan]

Originally Posted by djred870

Does anyone know the proper transfer switch to replace a 2000 winnebago chieftain mine went and The original owner put in a wrong one he replaced it with a 30 amp It has problems now with wiring and factory installed says it has to be 50 amp I need to know what was or is factory make to find online if possible please any help

Here is the cover with model number, etc on my Itasca (Winnebago) and the way the wiring should look for a 50 amp hookup. I converted mine from the factory 30 amp to 50 a couple of years ago, but luckily it already had a 50 amp ATS. The brand is Magnetek and I have also attached a circuit diagram for the 5070 and the installation instructions.

As the previous post said, did the former owner put a jumper on the ATS or in the breaker box to combine the two power legs? 50 amp service is two 110 volt legs for a combined 220 volt. A 30 amp service is only one 110 volt input with it jumpered to both sides of the circuit breaker.