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  • Parallax Power Supply (ATS501) 120/240 Volt 50 Amp Transfer Switch
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Parallax Power Supply (ATS501) 120/240 Volt 50 Amp Transfer Switch

15 customer reviews

Price: $338.44 + $10.71 shipping
Only 9 left in stock.
Ships from and sold by Offshore Wake.
  • Parallax Power Supply Line Generator Switch Model ATS 501
  • With a flick of the generator switch, the ATS 501 line generator switch from Parallax transfers power smoothly between shoreline power and generator/secondary power source, regardless of line voltage conditions
  • ATS 501 is engineered for superior reliability in 50 Amp, 120/240-volt electrical systems (per the new UL Standard 1008)
  • Electronic circuit board design is proven in extensive cycle testing to withstand heat and torque
  • The low-profile chassis measuring just 3-1/2 high allows mounting in areas not possible with other 50 Amp transfer switches, and installation can be made without cover removal
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2 new from $338.41
$338.44 + $10.71 shipping Only 9 left in stock. Ships from and sold by Offshore Wake.

Frequently Bought Together

Parallax Power Supply (ATS501) 120/240 Volt 50 Amp Transfer Switch + Progressive Dynamics (PD9260CV) 60 Amp Power Converter with Charge Wizard
Price for both: $535.44

These items are shipped from and sold by different sellers.

Buy the selected items together

Product Information

Technical Details
BrandParallax Power Supply 
Item Weight1 pounds
Product Dimensions12 x 10.1 x 3.8 inches
Item model numberATS501
Manufacturer Part NumberATS501
  
Additional Information
ASINB002SSEXSC
Best Sellers Rank #360,577 in Automotive (See top 100)
Shipping Weight7.6 pounds (View shipping rates and policies)
Domestic Shipping Item can be shipped within U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First AvailableOctober 14, 2009
  
Warranty & Support
Warranty, Parts: Parts

Product Warranty: For warranty information about this product, please click here
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Product Description

Parallax Power Supply Line Generator Switch Model ATS 501. With a flick of the generator switch, the ATS 501 line generator switch from Parallax transfers power smoothly between shoreline power and generator/secondary power source, regardless of line voltage conditions. ATS 501 is engineered for superior reliability in 50 Amp, 120/240-volt electrical systems (per the new UL Standard 1008). Electronic circuit board design is proven in extensive cycle testing to withstand heat and torque. The low-profile chassis measuring just 3-1/2 high allows mounting in areas not possible with other 50 Amp transfer switches, and installation can be made without cover removal. Manual shut-off for time delay optimizes use with inverters. 8-3/4 Inch Weight x 3-1/2 Inch Height x 11-3/4 Inch Depth. 7 pounds.

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

6 of 7 people found the following review helpful By george kenson on February 22, 2013
Verified Purchase
When plugged in to a campground with only 20 or 30 amp service, when wife wants to use toaster or Microwave and the A/C is on, meant we had to either kill some power device user or we would blow the circuit breaker. I would have to go out in what ever weather we were having or maybe its breakfast and we are in our pajamas. Would have to unplug from the camp ground and plug into the generator plug so we had a full 50 Amps. Then reverse the procedure after we toasted or whatever.

Now I just click on the generator switch inside while she needs extra power and shut if off when she is through.

This device senses generator power when it comes on and disconnects you from the campground by a large relay. When Generator stops relay kicks it back to campground power.
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3 of 3 people found the following review helpful By Benjamin C. Gerlich on July 6, 2013
Verified Purchase
This is exactly what a switch should do. I have a solar set up in my garage to run the man cave. the last switch I had would only run the house current no matter how I hooked it up. My goal was to run off solar until the battery bank droped off and then switch to grid. So now when the inverter shuts down because of low voltage it switches over to the grid and when the inverter kicks back on when the voltage is back up the switch senses the voltage and switches back to the battery bank. love it!! great buy.
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7 of 9 people found the following review helpful By Jeremy on May 6, 2013
Verified Purchase
I bought Two of these units for my RV one for my shore power and generator, and one for my inverter. The one I use most has been working fine so far. The other one was only used for a few hours then it failed. My return window had expired to return it back to amazon since I only take my RV out every few months. So I turned to the Manufacturer as it was still under warranty. I told them via their electronic form that I bought it from Amazon and they sent me a new unit that has been working so far. I sent in the old one per their tech support. A month later I got it back in the mail with a bill for 250.00!!!! They had not even tested the unit or fixed it. And they billed me over 14.00 in return freight, after I paid over 18.00 to send it in!!! They said Amazon was my warranty not the MFG, and they voided my warranty. No where in their warranty information does it say they will not honor purchases from Amazon, they never called or emailed to say there was any issues with the return. And they already knew I bought it from Amazon before I returned it!!!

Amazon was great in returning the unit and I got a full refund of 170.00 which included the restocking fee. So now I am out almost 140.00 after getting charged 250.00 from the MFG, restocking fees and shipping back and fourth!!!! I could have almost bought a new unit for that!!! I believe that Connecticut Electric / Parallax Power are unethical, fraudulent, and provide a have horrible customer service. I have issued a claim with the Good Sam RV action line, and I will be making reports the BBB for their area.
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3 of 3 people found the following review helpful By K. Radtke on May 14, 2014
Verified Purchase
Would recommend it very highly, it did the job,by going Parallax Power Supply, they told me how to check old unit.
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2 of 2 people found the following review helpful By Terrance L on July 20, 2014
Verified Purchase
The switch itself is fine and meets all my expectations.

It is the extremely sharp edges on the the cabinet that gave me pause. There are no fitting/grommets/strain relief connections for the wiring.

The way the lid fits against the holes there is no way to use any know method of protection for the inbound wiring and get the lid back in place. It took quite a bit of work with a wiz wheel to get the lid modified to fit again, once the appropriate strain relief fittings had been used.
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2 of 2 people found the following review helpful By John on March 19, 2014
Verified Purchase
I used it for being able to run a well that can be powered by two different sources and supplies water to buildings across the property.
I am also looking to use this for a generator power transfer at my house.
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1 of 1 people found the following review helpful By Judy S. Miller on October 28, 2014
Verified Purchase
This is a new item that replaced the old one that was discontinued. Don't think this is just a quick exchange. It is not. That being said, we called the company and they were very helpful in explaining how to install. Warning, when you call them you might want to have pencil and paper ready because their directions are not just one, two, three! They need to know about your system in order to tell you how to make the exchange. Get ready to locate in a different area if space is tight. This box is larger than my old one. I had to do this however my wires were long enough to allow a short distance move. Cluddo's to the person on the other end at the company. He was patient and seemed to enjoy helping this novice person on the other end. Item did work correctly on the first try but I have to admit that I was not exactly sure of myself. Without his help I would have been lost. So if you purchase this item do not be afraid when you get something different. As I said, it is not a mark wire A,B,C and plan to put them back in the same place. At least it was not for me. However, just call the company. They were extremely helpful and if I did it then you should be able to also!
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2 of 2 people found the following review helpful By Anne Soustek on July 29, 2013
FIts well, installs easy, well labelled and well built. There is even a 4th channel (cut the jumper wires if needed) to make it work in a pinch or if one of the others goes bad.
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Want to discover more products? Check out this page to see more: 50-amp automatic transfer switch