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The Reliance Controls 30-amp (120/240v 10-circuit) transfer switch w/ interchangeable breakers & inlet has been discontinued and is not available for purchase at this time.


Reliance Controls 30-Amp (120/240V 10-Circuit) Transfer Switch w/ Interchangeable Breakers & Inlet

Reliance Controls Power Equipment and Accessories
Model: Q310A
(Based on expert analysis, manufacturer ratings and customer reviews)
4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5
50 Reviews
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  • Features
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Amp Rating
NEMA L14-30R
Safest Way to Distribute Power
Eliminates dangerous backfeeds and electrical overloads

Multiple Circuit Combinations
Mix any combination of single and double pole circuits
(6) 15A 1-pole, (1) 20A 2-pole and (1) 30A 2-pole

Built-in Wattage Meter
Track power input to ensure proper load balancing

10 Total Circuits
UL Listed
Certified for use by Underwriter Laboratories
Product Specs
120/240 Single-Phase
60 Hertz
Rated Watts
7500 Watts
Rated Amps
30 @ 240 Volts (Single Phase) Amps
Conduit Length
Number of Circuit Breakers
Max Generator Input
30 Amps
Maximum Wattage
7500 Watts
UL Listed
Transfer Switch Circuits
15A 120V
20A 240V
30A 240V
Circuit Breaker Protection
Each Circuit
NEMA L14-30R
Made in USA
20 Pounds
Product Length
13 Inches
Product Width
11.75 Inches
Product Height
4.5 Inches
Consumer Warranty
2 Years

NEMA L14-30R
Need Help? Ask Our Experts.
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How-To Library
  14 Questions
Q: I have an older house built in 1969 which has a fuse panel not a breaker box , is this transer panel compatible with a fused panel? Thanks in advance
by Danny from Minnesota on May 19, 2015

A: Thanks for your inquiry.

Yes it will definitely work. Fuses were never part of any testing lab tests since they had been replaced by circuit breakers for so long. But fuses are arguably better protection than circuit breakers and the transfer switch would install and work the exact same way as it would if the panel had circuit breakers.

by Mike, Product Expert

Q: Is the model Q310A come prewired
by Larry from Maryland on September 13, 2013

A: Thank you for your inquiry!

The Reliance Controls, Q310A comes prewired and ready to connect directly to your existing circuit panel.

by Mike, Product Expert

Q: I just purchased a Westinghouse WH7000EC generator. I have central AC connected to my main breaker panel via a 30a double pole.Would you suggest the Reliance Q310A?Whether I use AC or not I believe I'll need a 10 circuit transfer switch.Does the Q310A come prewired(and/or with any accessories)?Thank you
by Tony from West Virginia on September 10, 2013

A: Thank you for your interest in Electric Generators Direct!

We do not recommend the use of central air conditioning units while operating on a portable generator. The A/Cs consume a considerable amount of power which most often will cause faults within the generator itself.

If you were looking for a recommendation of a 30A manual transfer switch, then the Reliance Controls, Q310A is a good option. This switch does come pre-wired but will not have the power inlet installed due to federal restrictions. You also require a 30A 240V (4-prong) power cord in order to connect efficiently.

30A Power Cords
by Mike, Product Expert

Q: Are these breakers replaceable with standard Murray or Cutler hammer breakers?

by Keith from New York on August 05, 2013

A: Per the owner's manual found in the specs tab and download document section on the product page....

This product is UL approved for use with the following field-installed breakers:

Siemens Type QP
Square D Type HOM
Eaton Cutler-Hammer Type BR
Murray Type MP

30 amps maximum in positions A and B, 20 amps maximum in all other positions.

Q Series Manual

by Mike, Product Expert

Q: I like the Q310A transfer switch. However, I have space problems. It is not possible to install a transfer switch beside the power panel. Can the transfer switch be installed directly above the power panel?
by Chuck K. from Maine on December 11, 2012

A: You can install the transfer switch in any location that you require, you just need to make sure the proper wiring is used when you change out the prewired whip....consult with your installing electrician since they will be familiar with your local codes.

by Mike, Product Expert

Q: hello, I want to install a transfer switch outside, next to the panel (90A sevice). My questions:
1. this nema1R enclosure is reliable for exterior?
2.if I get the Q310A what generator would you recommand
3. I see that this transfer switch come with the outlet, so the only accessorry that I would have to buy is the cord?

Thank you for your reply!

by Florence from California on September 22, 2012

A: A NEMA 1 enclosure is indoor mount only and cannot be mounted outdoors.

The Q310A is rated for up to 7500 watts so any generator up to that capacity will work well with the switch.

The outlet can be mounted on the face of the switch as long as your local code allows it. Otherwise you will need to purchase a power inlet box.

Here is a link to the outdoor switches we offer.....

Outdoor Mount Switches

by Mike, Product Expert

Q: Is the Reliance Q310C a good choice for my Generac XP7000E. My electrician indicates a need for a 20A 2pole and a 15A 2 pole as well as several single pole breakers. Are the replaceable breakers similar to the Murray that are so available.
Is the Reliance PB30 inlet box a good choice?

by Allan Peck from Massachusetts on May 24, 2012

A: You cannot use the Q310C with the Generac XP generators. The control panel on the XP models is GFI protected so you must use a GFI type transfer switch. The Reliance Controls "X Series" switches are recommended. Here are a couple models and they are very versatile....

30A GFI Transfer Panels

The PB30 inlet box is a good choice.

by Mike, Product Expert

Q: I have 200 amp service, with a 30 amp 5500 wattt generator, looking for a manual transfer switch. I plan on selecting the circuits that I want to have on. Just a transfer 200 amp....which one do you suggest..
by Richard from Arkansas on April 30, 2011

A: The following switch would be the perfect switch for your needs.

200A Manual Transfer Switch

A 30A outdoor "Power Inlet Box" would be needed.

30A Power Inlet Boxes

by Mike, Product Expert

Q: Can you replace the factory breakers on the transfer switch with piggyback/tandem breakers so that you will be able to power more than 10 circuits with the Q310A
by Joel from Louisiana on February 08, 2011

A: The way this switch is set up internally you cannot use the mini breakers in this unit to increase the number from 10 to 20. The top on off switch only operates each breaker location and to have multiple breakers in one slot it will not operate properly. To have better control over your existing panel a whole house type manual transfer switch should be selected based on your panels amperage rating.

100A Manual Switch

200A Manual Switch

by Mike, Product Expert

Q: I have a 5550 watt portable generator but i noticed that in the manual it states that it has a starting wattage of 8550 watts. Will i need a transfer switch that can handle 8550 watts?
by Lou from Pennsylvania on February 06, 2011

A: Transfer switches are based on the running wattage of generators as the starting wattage is normally only run for a matter of milliseconds.

You will want to base the transfer switch size matched to the largest outlet you have available on your generator. So, if you have a 30A 4-Prong outlet then you would want a 30A transfer switch and a Power Inlet box that is 30A with 4-Prongs. The 4-Prongs allows for 120/240V operation.
by Mike, Product Expert

Q: Does the Q306C come as pictured with 6 breakers installed, or do I provide the breakers?
by Bob from Maryland on February 05, 2011

A: This product is supplied with a combination of 15- and 20-amp circuit breakers. In some cases, a 30 amp double-pole breaker may be supplied in the A and B positions.
All circuit breaker positions will accommodate 15- and 20-amp circuit breakers, and may be easily changed in the field.
by Mike, Product Expert

Q: On the Q310A, could I pull the 20 amp 2 pole breaker out and install two 20 amp 1 pole breakers? Also is the only difference between the Q310A and the Q310C is the plug in that comes with the Q310A?
by Steve Bill from Minnesota on February 04, 2011

A: Since both the Q310A and Q310C have interchangeable breakers, yes, the 2-pole breaker can be switched out to two 1-pole breakers.

The only difference between the Q310A and the Q310C is the addition of the plug outlet included with the Q310A model.

by Mike, Product Expert

Q: Hello. What are the main differences between the Q310A and the 31410CRK switches?
by Raegen Carr from Florida on January 23, 2011

A: The "Q" Series Reliance Controls transfer switches have interchangeable breakers and their "Pro/Tran" Series do not.

Advantage of interchangeable breakers allows you to adapt the switch to your specific needs.
by Mike, Product Expert

Q: I have a new Honeywell HW7500E portable generator that I wish to use for backup in my manufactured home. I'm looking at your Reliance Model Q310A 30 amp transfer switch. I can mount the switch under my panel where it will be about 2 feet from the outside wall. On the other side of that wall is my generator which I would like to keep about 20 feet from the house.
My question is this: What components, other than the switch, will I need to get the power from my generator, through the wall and into the house and from there, into the Model Q310A 30 amp transfer switch?

by Terry Miller from Arizona on January 22, 2011

A: You would need to purchase a outdoor power inlet box which is basically an outlet you plug the generator into outside. This inlet box is then wired directly to the transfer switch providing the needed power from the generator.

How to Pick the Perfect Power Inlet Box

And of course you will need to purchase the correct length cord to work with the inlet box and your generator. A 30A (4-Prong) cord would be needed.

30-Amp Cords

30-Amp Boxes

by Mike, Product Expert

Reliance Controls Q310A Reviews & Ratings
Overall Rating
4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5
I'd Buy It Again (9)
High Quality (8)
Easy To Use (7)
Easy To Install As Each ... (6)
Price (6)
Expensive (2)
94% of respondents would recommend this product to a friend
50 Reviews  Sort by 
Purchased from Power Equipment Direct
Purchased 7/15/12
Total Helpful Votes
20 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
Excellent Transfer Switch & Good Service
First, I want to thank EGD for their excellent customer service and fast shipping.

Its amazing to me, that the hardest part of installing one of these switches is the mounting of the unit and channeling the conduit. Especially if your load center is flush mount. That part took me the better part of 2.5 hours and a trip to the hardware store. Connecting the wiring was the easiest part done in about 45 minutes.

The nice thing about this switch is you can run one heavy duty appliance with... more
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Tullytown, PA
Purchased from Power Equipment Direct
Purchased 9/24/11
Total Reviews
9 Reviews
Total Helpful Votes
32 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
A Good Example Of An Inter-changable Model
Installation was pretty easy... Planning ahead on which circuits to use will help quite a bit.

If you double click on the Transfer box, the far left came as a double pole 30 amp breaker.I removed it swapped over two 15 amp breakers. If we had an electric water heater, it would have stayed.Also replaced 5 of the 6 -15 Amp breakers with 5- 20Ampers. Electrician friend and I swapped. We kept the double pole 20Amp for a thru the wall large Air Conditioner..24Kbtu.
Electric stove, washer, dryer... more
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Total Reviews
2 Reviews
Total Helpful Votes
54 Helpful Votes
4 out of 54 out of 54 out of 54 out of 54 out of 5
Great Switch!
Local power outages lately seem to coming more often, and of longer duration. In July 2012 west suburban Chicago had a huge storm, and we were out for 5 days.

I wanted / needed a transfer switch for safety, and ease of hook up (the wife might need to hook up sometime).

Jim helped me select a Reliance Q310C, and Iím very satisfied with the choice. It covers all my essentials, and delivers power to hard-wired items like the furnace, well, bathroom and kitchen lights. No more extension... more
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Danbury, CT
Purchased from Power Equipment Direct
Purchased 10/11/12
Total Reviews
2 Reviews
Total Helpful Votes
10 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
Best 30-amp 10-circuit Transfer Switch
We ran 60 feet of #8 wire from the our shed to this transfer switch (in schedule 40 pipe), then had an Electrician buddy wire the panel for me- it was a lot easier than you would think. Just make sure you distribute the loads evenly. He was impressed with the versatility of this unit because the wires and unit were clearly labeled.

We needed a 30 amp double pole to power the 55 gal. electric hot water heater and this was the only transfer switch we found that had a 30 amp circuit. (You just... more
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Lonny Wagener
Greensburg, IN
Purchased from Power Equipment Direct
Purchased 2/18/10
Total Reviews
7 Reviews
Total Helpful Votes
35 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
Nice Piece Of Equipment
I have a 6500 Watt generator and own a home with geothermal heat and electric water heater, and a gas fireplace for backup heat.

This 10 circuit switch is a tad bit large for my generator, but I wanted the capability to have lights, microwave, sump pump, and refrigerator circuits powered, or by turning these circuits off during the day, I can turn the hot water heater on to heat our water.

Once the water is hot, I can shut the 220 circuit off and turn all eight of the remaining circuits... more
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Newton, NJ
Purchased from Power Equipment Direct
Purchased 9/6/11
5 out of 55 out of 55 out of 55 out of 55 out of 5
Happy Customer
I purchased my Reliance Q310A transfer switch from Electric Generators Direct after hurricane Irene left us without power for five days. It arrived earlier than promised and impressed me as a well-made and well thought-out product. After watching Relianceís on-line instructional video and determining which circuits I wanted to route through the switch, the actual installation took only a few hours. The Q310 has interchangeable circuit breakers and I had to swap out a few of the supplied ones to... more
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Michael Young
Weaverville, NC
5 out of 55 out of 55 out of 55 out of 55 out of 5
American Made With Pride
Reliance Controls has helped to restore my faith in AMERICAN and MADE with PRIDE.

It is high quality, built well, and functions perfectly as advertised- well worth the investment.

I give it a five star rating... I made my own hinged plexiglass cover to prevent dust intrusion from the shop.

Excellent experience and service from Electric Generators Direct, I would definitely purchase from them in the future.
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Thomas Newton
New Haven, KY
Purchased from Power Equipment Direct
Purchased 9/10/09
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Product
I installed this unit without a hitch. I recessed the switch in the wall.

I took the NEMA Plug out and Hard wired the switch. The directions were good.

Don't mind the patchy drywall. It is temporary until I get a new sheet to cut a one-piece replacement.

I would buy Reliance from this website again.

Fast shipping, no problems.
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Purchased from Power Equipment Direct
Purchased 1/1/13
5 out of 55 out of 55 out of 55 out of 55 out of 5
After about 6-8 weeks on back-order status, it shipped. Arrived in good order. Next job was to line up a qualified electrician to install it

I know other posters have installed this unit themselves with seemingly little expertise and minimal stated time expended, but I did not want to take any chances of a costly or dangerous mistake and so hired an electrician. No regrets. He had 30 years experience and indicated that he was seeing more and more customer transfer switches being installed... more
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George M.
Randolph, NJ
Purchased from Power Equipment Direct
Purchased 9/28/13
Total Reviews
2 Reviews
5 out of 55 out of 55 out of 55 out of 55 out of 5
Reliance Transfer Switch
My Electrician hooked it up in less than an hours time and it covers mostly everything except the BIG electric items....STOVE, DRYER and Washing Machine and 3.5 TON A/C Unit.Otherwise, the entire house is wired including the oil fired heating system, Sump Pump, 2 refrigerators, lights, TV's and computers. It is a medium sized Split roughly 2,500 sq. ft. All of this on 10 circuits.
Pros: I'd Buy It Again, Features, Price, Exceeded Expectations
George Recommends This Reliance Controls Product
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Myron A.
Greer, SC
Purchased from Power Equipment Direct
Purchased 9/7/12
5 out of 55 out of 55 out of 55 out of 55 out of 5
So Good My Electrician Wanted One
I ordered this switch when it was on backorder, but it was shipped and received as promised.

I already had a six circuit transfer switch on my 200 amp home service and a reliable 6500 generator. My intent was to upgrade to whole-house by using manual load sharing, including my high efficiency 3 1/2 ton Trane air conditioning that covers my 2400 sq ft residence, using the dual 30 amp breakers to do so.

I had abandoned the idea of putting in a whole-house natural gas standby... more
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