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Availability:
In Stock.
Arrives
Thursday, Sep 10
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Features
- Includes full manufacturer warranty
- Includes full manufacturer warranty
- Includes full manufacturer warranty
- Includes full manufacturer warranty
- Includes full manufacturer warranty
Description
Reliance A510C 120/240-Volt 50-Amp 10-Circuit Pro/Tran 2 Indoor Transfer Switch
Operation Mode: Manual
Current Rating: 50 A
Operating Voltage: 240 volts
Contact Type: Normally Open
Connector Type: Screw Terminal
Brand: Reliance Controls
Switch Type: Hinge Lever
Terminal: Normally Open
Material: Alloy Steel
Item dimensions L x W x H: 11.75 x 4.5 x 11 inches
Operation Mode: Manual
Current Rating: 50 A
Operating Voltage: 240 volts
Contact Type: Normally Open
Connector Type: Screw Terminal
Switch Type: Hinge Lever
Terminal: Normally Open
Circuit Type: mixed (single-pole and double-pole)
Mounting Type: Surface Mount
Actuator Type: Hinge Lever
Number of Positions: 10
Control Method: Remote
Connectivity Protocol: X-10
Wattage: 12500 watts
Color: black
Item Dimensions: 11.75 x 4.5 x 11 inches
Unit Count: 1 Count
Number of Items: 1
Material Type: Alloy Steel
Contact Material: Brass
International Protection Rating: IP54
Specification Met: UL
Brand Name: Reliance Controls
Model: A510C
Manufacturer: Reliance Controls
UPC: 815181012236
Item Weight: 18 pounds
Part Number: A510C
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Sep 10
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
We had this installed by an electrician for our backup generator. We got the 50A version to have some upgrade option even though our generator is only 30A. The construction is decent for an indoor mount system. The box itself is metal. The little door covering the load switches is plastic. The switch handles are plastic similar to a breaker in feel. So not built like a tank but decent quality and given that it will probably only be touched once every few years - plenty good enough. There was no problem with the install. It actually took fewer hours to install than they bid which was a nice surprise. Note this is indoor installation only. This one has 10 single circuits but 2 of them are doubled if you want to use them for a 220 circuit. So you really get 2x 220V circuits and 6x 110V. This worked fine for our setup. The way this works is when it is hooked into your main panel you basically have two sources for the selected circuits in your house. Think of it as a "Y" connection connecting your house circuit to either the utility OR to the generator inlet. Each circuit in this box can be individually switched to the utility OR the generator OR turned off from both. This allows you to only turn on high-current loads such as a water heater or AC or something when you need it. Thus you can load balance your generator if all your loads together are too much for the generator. Just as a reference it cost us about $500 to get this installed by an electrician. We had to buy an $40 external weatherproof generator plugin box to mount on the outside of the house. We also had to buy a $50 NEMA L14 extension cord to go from the generator to the plug box on the house. So around $1000 for the parts and installation.
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Reviewed in the United States on June 7, 2021 by Robot Power
I installed flush mount recessed into sheet rock wall using trim kit, as photo shows: https://www.amazon.com/dp/B00REJVYYG?psc=1&ref=ppx_yo2ov_dt_b_product_details Very well built and well laid out to install yourself. Cables all labelled to match throw switches. Get a good layout of your house breakers before you begin, so you know which ones to run through the transfer switch. I removed the jumper for positions C&D and only used A&B for 220V. That left me 6 15 amp and 2 20 amp for other circuits. Will run everything I need plus bottom floor air and heat. Good videos on YouTube to install the Reliance Pro/Tran. Reliance Contral Products customer support is fantastic and quick. Had some questions, contacted them by email, and had answers the same day. Guenther handled my emails and was great to deal with. This is a super product, very well laid out, and very well made. Cable tails are plenty long to reach anywhere in the breaker box. I had to cut length off all of mine. Give this one a look if looking for a transfer switch. Mine will work from an outside portable generator. I ran 6-3 w/grd from the transfer switch to an outside wall plu,g to plug the generator in. Got great plug from Amazon also. It is also a Reliance Control Product: https://www.amazon.com/dp/B004HSO1JW?psc=1&ref=ppx_yo2ov_dt_b_product_details As you can see from photo I fixed a label under each transfer switch poooooosition showing the breaker number it was feeding. The only suggestion I would have to improve the box install is the have terminals to attach to for incoming wire from the gerator instead of have to splice with connectors, but was not a big issue.
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Reviewed in the United States on February 9, 2023 by curlgary
Used with off grid solar inverter with batteries. It was easy to install and works great.
Reviewed in the United States on June 12, 2026 by Amazon Customer
A very quality product - highly recommended! I was originally going to go the "suicide cable" approach since I would "never make the mistake" of having an energized cable with two male ends.. uh huh. I'm getting older, and I do do dumb things at times. Installing this Reliance panel was the smart thing! 2.5 hr installation time overall, and it looks and works great! Once I looked at this product, I realized it was much simpler than I thought it would be, AND much more flexible. I worked for an electrician in a previous life, so I was very comfortable with the connection to the circuits in the panel. I also got the flush-mount kit, and it really made me happy with the completed project. (FYI, I have a 30' cable to connect to the generator, which sits outside - 10' from the panel, so I installed the panel-mounted inlet inside.) UPDATE 4/23/23 - I just completed installing a second panel at my son's house. I continue to be impressed by the ease of installation and how flexible this panel lets us be! The most time-consuming part of this installation is recessing it into a finished wall. If this was installed with a surface-mounted panel, you could easily install it in an hour. GREAT product!
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Reviewed in the United States on April 17, 2023 by AmzCust
The generator is solid and started up right away. I like the fact the remote was already paired and charged. Assembly was easy and the price was great for the value. Came with the oil to add to the crankcase. The controls are easy to access and use. Plenty of receptacles and optins. Overall, I am pleased so far with the product
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Reviewed in the United States on January 23, 2025 by Robert P.
First off, the vendor was very prompt in answering my questions as best they could. I can’t give the transfer switch five stars because I felt there were deficiencies. First, a cabinet screw that holds in the switches was missing. There was a nut rolling around in the switch assembly that didn’t seem to fit anywhere and there were no instructions of any kind included in the unit. For $400, I expected instructions. I also received a single white 8 awg wire for the neutral hookup. I did not receive a matching line wire or ground. This struck me as odd. The wires attached to the bus bars are 10 awg wires. This is sold as a 50amp switch. The vendor said the 10 gauge wires were fine for 50 amps because they were special wires that could take the extra heat. Maybe so. I’m not comfortable sending 50 amps into 10 gauge wire and can’t imagine how that would ever pass inspection. I’m changing out those wires. Not all that hard to do but again, for $400 I shouldn’t have to do any of that for a transfer switch advertised and sold as a 50 amp unit. Except for the unfortunate wiring, I like the switch.
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Reviewed in the United States on August 1, 2023 by drive-by critic
The transfer switch was easy to install. the feeding of wires through the flexible steel conduit was a bit of a challenge. Videos on the manufacture site were excellent. I wrote the manufacture when I connected my 6AWG wires to the red and black wires inside the transfer switch. The transfer switch uses 10AWG (red and black) for connection to your 6AWG wires for the 50Amp service to the switch. This counters my knowledge of using 6AWG copper wires for 50Amp circuits. The manufacture emailed me back and said NEC doesn't apply to wiring inside enclosures like the transfer switch. UL reviewed the switch and approved the wiring used for the 50AMP feed based upon temp rise of wires, the type of wires being used, and the fact it is inside an enclosure and not an inwall or conduit application. Here is what the manufacture said. "I had the same question when I came to work at Reliance Controls in Tech Support. Here is the answer. Wire in a Panel is rated differently than typical Conduit wiring as rated by the NEC. The wire size that is typically associated with 50-amp is 6-gauge or 8-gauge when using 75° C wire, but the wire size does not apply to internal wiring inside of panels. Wire rating is arbitrary, once that is understood, everything should make more sense. The NEC wire ratings are specific to specific conditions. There are all sorts of wire ratings based on insulation temperature, type of insulation, and whether it's in a conduit or an open space cabinet/enclosure. It is not true that 10-gauge wires are 30 amps, and 8-gauge wires are 40-amps, and 6-gauge wires are 50-amps. The attached table 310.15 (B) (16) in the NEC shows this. Even so, this table does not apply to factory build control panels; it is just setting forth rules for wiring circuits in buildings through conduit. Nor does the table refer to 10-gauge MTW wire that is rated for 105° C which is used in the Transfer Switches. 10-gauge wires can handle way more power than the NEC depicts in the table, as they want wiring in residential to be overrated. The wiring in our transfer switch is 10-AWG (105° C) MTW, but per the testing lab Underwriter's Laboratories (UL), none of these matters. They run very stringent heat rise tests with much higher amperages (for example, our 30-amp toggle switches must pass 60-amps for over 5,000 operations). The wire size in this transfer switch or other factory wired control panels that have testing lab certifications to a certain temperature rise unless there is a claim of a fraudulent marking for the certification. We have been passing 50-amps (plus) testing for nearly 20 years with 10-AWG 105° C wire, a lot has to do with the fact it's in an open enclosure versus in a conduit where the heat factor is much higher in a conduit. Now if you were running wire in a conduit between an inlet box and the transfer switch, that falls under applicable building codes, and different rules must apply (like using 8-AWG). But not in the transfer switch. "
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Reviewed in the United States on January 12, 2024 by K. Kittinger
Good quality and instructions are clear. Uses square D breakers and instructions come with a replacement parts list. On the expensive side of switches but the quality is great. The flexible conduit is a bit tight for all the wires on the 10 switch model but they can be pulled through. Installed and testing went well.
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Reviewed in the United States on July 7, 2025 by David H.