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07-17-2023, 10:47 AM
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#1
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Montana Fan
Join Date: Aug 2020
Location: Weddington
Posts: 143
M.O.C. #26813
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Anyone have a dead Auto Transfer Switch they want rid of?
Hello Everyone, I hope you are doing well!
I am sure you are all aware that the factory installed Progressive Dynamics PD52DCSD Auto Transfer Switch that switches from shore to generator power has had a very high failure rate. My first one failed after only 6 months and I got a second complete box under warranty. That one has now failed after just over two years (just past the warranty...)
I reached out to Progressive Dynamics and they tell me they no longer make the model PD52DCSD (with surge protection) as they can no longer get the parts since COVID, so I would have to purchase a plain PD52 (no surge protection and no remote display, but a different, better?? contactor set). I also understand that Keystone has stopped installing these somewhere around the '22 model due to the high failure rate. I do not know what they are installing now.
The failure mechanism is the main contactor relay for the shore power as it is always engaged when connected to shore power. It runs quite warm when engaged. Since I still had the old assembly, so I just swapped the bad shore power contactor with the still good generator contactor from the old box. This works fine and should be good for a while longer.
Two questions, what brand and model do you recommend when this one eventually fails? (I have a separate hard wire surge/voltage protector so I don't really need that functionality).
Second, does anyone have an old, bad Progressive Dynamics PD52DSCD Auto Transfer Switch that failed and is collecting dust that I could salvage the generator contactor relay from (cheap!)?
Thanks, Mike
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Mike & Doreen
2021 Montana 3120RL Legacy - Sterling - Super Solar
2020 Chevy 2500HD High Country
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07-18-2023, 09:21 AM
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#2
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,708
M.O.C. #24086
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We are currently on the road. We are doing months of dry camping this summer (in Canada, nice and cool). I have been manually switching between generator and inverter (twice a day due to generator hours). When we get home I'm installing a new ATS for sure.
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Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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07-18-2023, 01:40 PM
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#3
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,173
M.O.C. #6433
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Maybe epoxy a small heatsink to the contractor? Maybe even fan cooled?
https://www.amazon.com/Pieces-copper...63493580&psc=1
Is there a model number on the contractor you can google to search for availability?
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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07-18-2023, 04:38 PM
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#4
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Montana Fan
Join Date: Aug 2020
Location: Weddington
Posts: 143
M.O.C. #26813
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I have thought about trying a fan for cooling but that is still not the right fix. I can see the paper wrapping turning brown due to the heat on the solenoids on the bad contactors. A fan may extend their life a bit but I want a longer term fix. I think ultimately I will ditch the ATS altogether and install just a manual transfer switch... “Shore - Off - Generator”. I found one rated for 240VAC and 63 amps for $65 on eBay. I don’t really use my generator enough to justify the ATS. With 2400 watts of solar I avoid using it as much a I can!
Thanks, Mike
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Mike & Doreen
2021 Montana 3120RL Legacy - Sterling - Super Solar
2020 Chevy 2500HD High Country
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07-18-2023, 06:56 PM
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#5
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,558
M.O.C. #2283
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I prefer a manual transfer switch. I made mine. I used Square D industrial breakers. It will last thousands of switches. I worked for 2 days on it. It’s custom built for the space in my camper. Pull a lever up for the generator and down for shore power. The real advantage, it was fun to make.
Lynwood
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07-18-2023, 08:45 PM
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#6
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Montana Master
Join Date: Aug 2004
Location: Livermore
Posts: 5,150
M.O.C. #1920
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Mike, at rally we replaced ours with the Hughes Watchdog EPO hardwired in place of the transfer switch. I talked with Matt and the only purpose for that transfer switch on the Super Solar was that it had EMS. You may have changed it. We just left the PD panel in place. I can send pictures if you want.
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Ron and Terrie Ames - MOC #1920/KF0NTA
2021Montana 3230CK Super Solar Legacy Package
2021 Ram 3500 Laramie Longhorn, BIM Charging
4x4, SRW, LB, Crew Cab, Pullrite 3900 Hitch
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07-19-2023, 05:44 AM
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#7
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Montana Fan
Join Date: Aug 2020
Location: Weddington
Posts: 143
M.O.C. #26813
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Hello Lynwood, I am curious why you used two breakers in your design. I assume these are 50 amp breakers. There is always a 50 amp breaker on the campground power pole and the unit has a 50 amp breaker in the breaker panel. Additional redundancy??
Hi Ron, good to hear from you. I have installed a Honda EU2200i generator for those occasions when I can't make enough solar power. I like having the original ATS to auto switch between shore power and the generator without having to run a drop cord between the generator and the shore power cord. I also like the remote indicator inside to confirm that everything is working well. I have also installed a hard wired EMS box (not Hughes but Progressive Industries) since the ATS has surge protection only, no hi/low voltage protection.
I am hoping to get another couple of years out of my reworked ATS using the two good generator contactors from the two boxes I have. Again, if anyone has an old factory installed Progressive Industries ATS that has failed, I would love to harvest the generator contactor from it. In the meantime, I am considering this manual transfer switch off eBay. It would be a very simple install (need a box) and has no solenoids to overheat
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Mike & Doreen
2021 Montana 3120RL Legacy - Sterling - Super Solar
2020 Chevy 2500HD High Country
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08-02-2023, 03:22 PM
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#8
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Montana Fan
Join Date: Apr 2018
Location: Peachtree City
Posts: 110
M.O.C. #21599
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When mine (2019) failed last November (2022) I replaced it with a Bridea #HGAS-01
RV Transfer Switch, Briidea Automatic Transfer Switch 50 Amp Applied to RV, Speedboats, 240 VAC https://a.co/d/55zeAyz
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2019 3931FB, 2011 F450 DRW KR
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08-02-2023, 04:06 PM
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#9
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,558
M.O.C. #2283
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Hello Lynwood, I am curious why you used two breakers in your design.
Because they made the transfer switch easy to make and very reliable. The flip switch has an eight inch hole through them and you a put one where the off position is on and the other one is on. I put a 3/4 square block between them so when you move the 3/4 square block one way up or down it cuts one on and the other off so there is no way to have both on or off.
Besides it’s fun to make make stuff better than you can buy it. For the cost of 2 SquareD breakers and 2 days work I have a transfer switch. You can look at my campers and tell a machinist with a lot of time on has hands owns them.
Lynwood
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08-02-2023, 04:15 PM
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#10
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Established Member
Join Date: Mar 2022
Location: Amarillo
Posts: 16
M.O.C. #30607
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Are you going to this years MOC? If so, I'll bring my failed unit that you can have.
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08-02-2023, 04:25 PM
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#11
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Montana Fan
Join Date: Aug 2020
Location: Weddington
Posts: 143
M.O.C. #26813
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Hello Dgerber, unfortunately I do not plan to go to the MOC rally in Sept. thank you for the offer though. I tried to PM you but it would not go, can I offer you $50 to throw it in a box and drop it at the post office?
__________________
Mike & Doreen
2021 Montana 3120RL Legacy - Sterling - Super Solar
2020 Chevy 2500HD High Country
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