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50A Transfer Switch - Metal Box - 120V/240V AC
(159 reviews)
Price: $233.01
In Stock
Progressive Dynamics
50A Transfer Switch - Metal Box - 120V/240V AC
Part Number: PD52
In Stock
$233.01
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- Reviews (159)
- Q & A (0)
- Photos
Progressive Dynamics RV Transfer Switch - PD52
- 50 Amp
- 120V
- 240V
- Shore Power to Generator
- Shore Power to Inverter
- Progressive Dynamics
This transfer switch automatically changes from shore power to generator power when needed. Protects your electrical system from AC power backfeed.
Features:
- Transfer switch automatically reroutes your RV's AC input from shore power to generator power when activated
- Can also be used with an inverter in place of a generator
- Time delay function only allows one input to feed your RV's breaker panel at a time
- Protects system from AC power backfeed
- 50-Amp double pole switch includes 2 separate 120V legs
- Durable metal case with cord knockouts
- Made in the USA
Specs:
- Amperage:
- Line rating: 50 amps
- Neutral rating: 70 amps
- Voltage: 120V/240V
- Dimensions: 10-3/8" long x 6-7/8" wide x 4-1/2" tall
- Weight: 7 lbs
- 2-Year warranty
This transfer switch has been pre-wired to automatically change the primary source of AC current from shore power to generator or inverter power when activated. It has a 50-amp double pole switch that includes (2) 120V legs, which can provide 240V service if needed. To prevent electrical interruptions, the time delay circuit board allows the alternate power source to stabilize before a transfer occurs. Additionally, since the switch only accepts one active source, it protects your electrical system from dangerous backfeed that can damage your equipment.
The metal case has cord knockouts for the various connections.
Automatic Transfer Switch Installation
The switch wires to your shore power input and generator or inverter input. Both inputs are wired to the AC panel.
PD52V Progressive Dynamics Transfer Switch - Metal Enclosure - 50 Amp - 120V/240V AC
Replaces PD52
Installation Details
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
- Product did not meet expectations
- Wrong item was ordered
- Defective
Ratings & Reviews
4.8
159 reviews
by:
Brian
08/30/2026
2006
Jeep
TJ
Worked well as a replacement for our failed transfer switch on our Rv. Was an easy swap. Significantly less expensive than replacing with what failed. Nice that this unit has a metal box compared to the plastic one it replaced.
by:
Gary
10/26/2026
Works great, exact replacement for what I needed. Easy install in place of the defective unit that was damaged by a brownout. Delivered in time, I had a upcoming camping trip.
by:
Chad
09/08/2026
Everything was good. Chrissy was very helpful and knowledgeable. The only thing was the shipping timeline. The received time of the unit did not happen in the timeframe that was given. Other than that was exact replacement.
by:
Clayton
10/02/2026
Free shipping. payed for next day shipping and it arrived next day. Good quality product. Installed and worked as it should.
Customer service was excellent
Thank you
Customer service was excellent
Thank you
by:
Gerry
05/12/2025
Solid construction with a durable metal housing. Easy to remove lid for access. My only suggestion is that the 1” cable clamps should be provided with the unit.
by:
George
08/25/2026
Fit in my motorhome just fine has worked as it should for a year now.
by:
Dan
09/22/2026
Got great help and was exactly what I needed for my 2001 motor home. Thanks.
by:
Nick
07/21/2026
I think it’s great to have air conditioning after a week of 90 to 100 degrees in my motor home. Thanks for allowing me to get my AC voltage back on.
by:
Matthew
07/03/2026
Works well as a replacement for the original equipment in my 2020 Intech 32' custom trailer.
by:
Joseph
09/30/2026
Worked perfect, and $58 cheaper then the dealer. Even the manufacturer told me to buy from them, it's cheaper.
by:
Scott
04/22/2026
Great communication with Breanna during the delivery process. Her personal follow up with me was impressive and appreciated. I would highly recommend etrailer for any needs.
by:
Brent
09/20/2026
Works well Shipped quickly and great communication
by:
Matt
01/19/2026
this was bought as a replacement to a different brand in a RV. the fit was great, and wiring was simple. delivery was pretty quick, leaving minimal down time on a RV that's out almost every weekend of the year, not much room for error and down time.
by:
Chris
10/29/2025
This item shipped fast and was exactly as described. The automatic email with tracking information was a nice touch. I have used etrailer for many parts and as always they have never dissapointed.
by:
Tony
07/25/2026
Prefect fit and change out for our unit. Solved our problem. Delivered well packaged and in a timely manner. Thanks!
by:
Tonya
07/28/2026
Came quick and customer support was amazing
by:
Rafael
04/22/2026
Another satisfied customer.
Mike L.
4/22/2026
Thanks Rafael, we appreciate your business!
by:
Harold
07/09/2025
One year after replacing the transfer switch in my trailer with this model I have had no further problems with my electrical system. Installation was easy as well.
by:
Tina
05/26/2026
Perfect! Fixed our problem!
by:
Doug H.
05/15/2024
It was a crazy situation and I called and I can’t tell you how happy I was with your service, you guys totally took care of me right away, and I’m greatly appreciate your kind response and great customer service, no issues so far and will definitely pass on this website to my friends…you guys are awesome and thank you !!
Doug H.
5/17/2025
Its still going strong, and i highly recommend upgrading with Etrailor for superior results like i have, this company cares and agian, thank you so much!!!
Nick S.
5/20/2025
@DougH That is awesome to hear after a year Doug, especially after the crazy situation you had mentioned before! We are always here to help, but glad that we got you taken care of. What kind of trailer do you have this on?
by:
Bill
05/06/2026
Delivery was fast and the product was exactly as described.
by:
Samuel
03/19/2026
Quickly shipped and works as expected.
by:
Cadin s Quest Mobile RV Services
04/23/2026
2010
Keystone
Raptor 5W Toy Hauler
Arrived earlier than expected
by:
Marty
08/05/2025
fast shipping, arrived with no noticeable damage. well packed.
by:
Ted
01/22/2023
Ordered a transfer switch for my Newmar diesel pusher. The model Newmar recommended was in stock. It showed up on time as promised. Install was relatively easy.
Highly recommend etrailer!
Highly recommend etrailer!
Ted
1/22/2024
Transfer switch has perfectly...
25
159
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Show More Reviews
See what our Experts say about this Progressive Dynamics RV Transfer Switch
- Upgrading Progressive Dynamics 9160 Converter for Lithium BatteriesHey Bob, thanks for reaching out. The standard PD9160A was designed around lead-acid charging profiles, so that won't provide a proper charge to your lithium batteries. The best move will be to upgrade to the Progressive Dynamics 9300 Series RV Converter Charger # PD79RR. This works with lithium batteries so it'll give your battery bank the charge it needs. The good news is your existing wiring should already support the 60-amp converter since the lithium version is basically a direct replacement. For...
view full answer... - Replacement Transfer SwitchHey Jimmy! Do you have 50 amp service on your RV? Assuming you do, the Progressive Dynamics 50A Transfer Switch - Metal Box - 120V/240V AC # PD52 is a good option and will work as a replacement.
view full answer... - Using the PD52 50 Amp Transfer Switch with 30 Amp Service Hey Marc, Thanks for reaching out. Yes, the Progressive Dynamics Automatic Transfer Switch # PD52 is compatible with both 120V and 240V systems, so it can absolutely be used with a 30-amp service. For a 30-amp setup, you would connect your shore power's hot conductor to the HOT1 terminal, while the HOT2 terminal would remain unused. This can be a nice option if you think you may upgrade to 50-amp service in the future or simply want the added durability and capacity of a 50-amp transfer...
view full answer... - Is There a Replacement For The Progressive Dynamics PD52DCSD Transfer Switch With Surge Protection? Don't worry Gilles, even though your Progressive Dynamics PD52DCSD is obsolete you can replace it with the Transfer Switch # PD52. If you wish to still have the surge protection you can add the Power Watchdog # HU27FR in line of the transfer switch since the new transfer switch does not have it built in like your old one. The new surge protection will Bluetooth to your phone rather than use the panel like you currently have.
view full answer... - Availability Of Control Board For PD52 Auto Transfer SwitchHello Tim, thanks for reaching out. We do offer the Progressive Dynamics # PD52 transfer switch, but unfortunately the control board for this unit is not available separately. The only solution we can offer is to replace the entire transfer switch with a new one.
view full answer... - Is a Lead Acid Battery Needed When Winterizing RV in Cold WeatherHey Michael, welcome back! You do not necessarily need to purchase another battery but there isn't a super low cost solution. A correctly installed AC bypass switch would provide the winter-storage functionality you're looking for without requiring the Victron to operate without batteries. For a 50 amp transfer switch you can use the part # PD52. Which again you might just consider a super cheap lead acid battery.
view full answer... - Is There Way to Wire Progressive Dynamics Transfer Switch So Shore Power is DominantHey Brad, while the standard wiring for the Progressive Dynamics transfer switch part # PD52 is to have it switch to the generator any time a generator is active and that circuit becomes dominant you can chose to have your shore power ran to the dominant circuit on the switch and it would operate opposite.
view full answer... - Can Progressive Dynamics Transfer Switch Replace PS-260SHey John, yes the Progressive Dynamics Transfer Switch part # PD52 that you referenced would replace the one that you have now. Did yours fail or why are you replacing it?
view full answer... - 50A Transfer Switch Needed for My RVHey Virgil, thanks for reaching out! Sounds like the Progressive Dynamics 50A Transfer Switch # PD52 is what you're looking for!
view full answer... - Troubleshooting 50 amp Transfer Switch that Requires Manual SwitchingHey Tim this is a great question but If the contactor of your # PD52 closes easily with very light manual pressure, the contactor itself is probably not sticking mechanically. Since you've confirmed you have 120V on both legs of the incoming power and your distribution panel breaker is good, the next thing to check is whether the transfer switch coil is receiving the proper control voltage when shore power is applied. Is the contactor coil receiving the correct voltage when shore power...
view full answer... - Replacement Transfer Switch for PD52DCSHey Bob, the Progressive Dynamics Transfer Switch - Metal Case - 50 Amp - 120V/240V # PD52 (Alternatively PD52V) and the PD52DCS/PD52DCSV are both part of the PD52 series but there are some differences. Both share the same voltage rating and current ratings. The # PD52 is slightly smaller in size and weight, and has a different control board. It also does not include a remote, which the PD52DCS has. The other differences are additional features the PD52DCS has that the # PD52 does not....
view full answer... - Is 50A Transfer Switch Progressive Dynamics Generator DominantHey Brad, when you wire up the Progressive Dynamics Transfer Switch part # PD52 you would need to wire it to the dominant power source you are wanting to use as the primary source and then use the other power source in the other position so that when the primary source doesn't have power it will then look for power on the other side. You can make either the generator or shore power.
view full answer... - Replacement Converter for Magnetek 6332 with Inverter and Transfer SwitchThe Replacement Converter for Parallax/Magnetek or WFCO RV Power Centers # PD4635V that you referenced was designed specifically for replacing the 6332 model Magnetek converter you have so this would work great. You'd remove the converter you have now and install this in it's place. You would need to use a transfer switch like the part # PD52 as well to go between shore power and generator power. The panel was designed for adding a transfer switch and has a section in the attached instructions...
view full answer... - Recommended 50 Amp Transfer Switch To Accommodate Shore Power, Generator Power, And Inverter PowerA transfer switch is only going to have two receptacles to accept power from so you wouldn't be able to connect all of your systems together, but I do have a solution for you. You would need to use a 50 amp transfer switch like the Progressive Dynamics Transfer Switch # PD52 and connect it to your shore power and generator power to the trailer, giving you an automatic switch over between the two sources, as you can see in the attached video below. With that installed you can then wire...
view full answer... - Replacement Transfer Switch For Progressive Dynamics PD52I have a solution for you. As you know the unit you are looking for is no longer available and we do not have replacement parts either. However, I do have the replacement for that unit which is the following part: **Progressive Dynamics Transfer Switch - Metal Case - 50 Amp - 120V/240V # PD52. This PD52V will be the exact replacement for your old PD52 style unit.
view full answer... - Comparing Progressive Dynamics PD52 to PD52DCSThe Progressive Dynamics Transfer Switch - Metal Case - 50 Amp - 120V/240V # PD52 (Alternatively PD52V) and the PD52DCS/PD52DCSV are both part of the PD52 series but there are some differences. Both share the same voltage rating and current ratings. The # PD52 is slightly smaller in size and weight, and has a different control board. It also does not include a remote, which the PD52DCS has. The other differences are additional features the PD52DCS has that the # PD52 does not. It has open...
view full answer...
- Can Progressive Dynamics Transfer Switch PD52 Be Installed In The Vertical Position?I attached a section of the instructions which shows you should mount the Progressive Dynamics Transfer Switch - Metal Case - 50 Amp - 120V/240V # PD52 in the vertical position. It should not be installed in the horizontal position. If you need longer wire then I recommend looking on the attached link so you can match up some wire that is the same gauge you are currently using. You will likely use 10 gauge like 10 Gauge Primary Wire - Blue - per Foot # 10-1-1. You may need some connectors...
view full answer...
- Can I Use 50 Amp Transfer Switch With 30 Amp RV SetupIt is possible to use a 50 Amp transfer switch with a 30 amp setup since you plan on upgrading in the future however, the Furrion Transfer 50 Amp Switch is made for 50 Amp setups. I recommend to use Progressive Dynamics 50 Amp Transfer Switch part # PD52. This 50 Amp transfer switch will allow you to hook up the 30 Amp shore power to the HOT 1 connection in the box. When you decide to upgrade to a 50 amp setup, you will use HOT 1 and HOT 2.
view full answer... - Recommended Replacement Transfer Switch for Todd Engineering TES-350From the specs available to me, yes the Progressive Dynamics Transfer Switch, # PD52 is a good replacement option for the Todd Engineering TES-350.
view full answer... - Transfer Switch to Replace Parallax 5070 in TrailerThanks for reaching out and we can get you a new automatic transfer switch to replace your Parallax 5070. That, like you said, is a 50 amp, 120V/240V rated transfer switch, and since these are interchangeable I would go with the manufacturer with the best quality, which is Progressive Dynamics: - 50A Transfer Switch - Metal Box - 120V/240V AC # PD52 From what I was able to find on your Parallax 5070, it with its mounting bracket measured 11-1/4” long x 8-1/4” wide x 5-1/4” deep, and while...
view full answer... - Transfer Switch For A 50 Amp RV To A 30 Amp Shore ServiceRealistically you should be using a 50A transfer switch like the: -Progressive Dynamics Transfer Switch # PD52. As using a 30A transfer switch would leave one leg of your panel unhooked, which isn't ideal. However, with that being said you can use your 30A transfer switch with a 50A service.
view full answer... - Can Progressive Dynamics Transfer Switch PD52 Have Shore Power on Normally Closed ConnectionI reached out to Progressive Dynamics to find out if you could have the shore power on the Normally Closed position for the Progressive Dynamics Transfer Switch # PD52, and this is what I was told via our tech contact: "I think there is confusion here; the PD52 uses two normally open contactors not a single relay with normally closed contacts in the inactive position as with the PD51. Second, the RV transfer switches are designed as "Generator Priority" that means that whenever AC voltage...
view full answer... - Progressive Dynamics Transfer Switch and InverterYes, Progressive Dynamics Transfer Switch, # PD52 automatically changes from shore power to generator power when needed and can also be used with an inverter type generator or an invertor. To isolate the charger you would need to place a switch in the circuit.
view full answer... - Replacement Transfer Switch for Parallax ATS501Your Parrallax ats501 transfer switch is a 50 amp transfer switch like what the Progressive Dynamics Transfer Switch - Metal Case - 50 Amp # PD52 that you referenced was designed to replace. This would be a solid choice that would work great and be very reliable long term. I attached a review video for this for you to check out as well.
view full answer...
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Info for this part was:
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Installed by:
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Expert Research:
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Video by:
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Video Edited:
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Updated by:
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5/13/2026
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