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SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting Torque

4.6 4.6 out of 5 stars 1,758 ratings

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Purchase options and add-ons

Brand Sealed Unit Parts Co., Inc.
Shape Round
Product Dimensions 6.5"W x 7.25"H

About this item

  • Relay/capacitor hard start kit 500% incr starting torque
  • Increased compressor starting torque. Designed for use on permanent split capacitor single phase a/C and heat pump systems
  • The country of origin is china
See more product details

Customer ratings by feature

Easy to install
4.8 4.8
Value for money
4.6 4.6
Longevity
4.4 4.4

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$12.52
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Ships from and sold by MRO Next Day.
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Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
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SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting Torque


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Product Description

Relay/CAPACITOR hard start kit 500% incr starting torque,increased compressor starting torque. Designed for use on permanent split CAPACITOR single phase a/c and heat pump systems. Multiple use includes: room air conditioner units, residential or commercial psc AC units.. the country of origin is china.

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SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting Torque
SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting Torque
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Price-20% $12.52
Typical:$15.69
$28.53$19.99-6% $16.99
Typical:$17.99
$13.77$12.28
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Easy to install
4.8
4.4
4.8
Value for money
4.6
3.8
4.7
Sold By
MRO Next Day
HVAC Pros
AMIPARTS
Redparts
AMIPARTS
YELLOW HAT HVAC LLC
maximum voltage
277 volts
288 volts
288 volts
288 volts
operating voltage
277 volts
115 volts
288 volts
288 volts
288 volts
shape
Round
Round
Round
Rectangular
Round
Round

Important information

Bulb Voltage

230 volts

Customer reviews

4.6 out of 5 stars
4.6 out of 5
1,758 global ratings

Customers say

Customers like the ease of installation using the capacitor. They mention that it's easy to hook up and that it saves them money. They also appreciate the noise reduction, saying that the compressor runs smoothly and without much noise. Customers are also satisfied with quality, and performance. However, some customers report issues with ease of starting the AC unit, saying it takes awhile to set and that the unit is hard to start. Opinions are mixed on the ability to kick start.

AI-generated from the text of customer reviews

172 customers mention140 positive32 negative

Customers are satisfied with the performance of the power booster. Some mention that it works fantastically, produces great results, and is easy to install. The compressor starts much smoother, and the air conditioner runs well. Overall, most are happy with their purchase and recommend it to others.

"So far, it works very well. It starts the compressor quickly and without much noise. Let's see how long it lasts." Read more

"This worked great. I have a champion 3400 generator inverter and it would not start my 13500 btu dometic brisk air 2...." Read more

"Easy to install, seems to work fine." Read more

"It worked perfectly, started the compressor immediately!" Read more

120 customers mention120 positive0 negative

Customers find the installation of the product to be easy. They mention that it's super easy to install, hook up, and hear the difference every time the ac unit starts. They also say that it seems to get started much easier, and is a very convenient fix.

"...So I figured for 13 bucks it's worth a try. Installation is very easy you just piggy back it to your stock hard start capacitor it plugs right in...." Read more

"...This is a very convenient fix. You do not have to be an electrician to install it. It is very easy.Watch a YouTube video...." Read more

"...A little about the installation. It's super easy. You wire it in parallel with the run capacitor...." Read more

"Easy to install, seems to work fine." Read more

97 customers mention94 positive3 negative

Customers appreciate the value of the tool. They say it's well worth the money, reasonable, and saves them a lot of money. Customers also say it works perfectly and is a life saver.

"...So do your research because this saved me tons of money I was pretty close to buying another generator to pair up with my original...." Read more

"Not really a standout from the competition except its reasonably priced. In fact, its 1/2 the cost from a popular appliance parts place here...." Read more

"...And it's cheaper when you buy it from Amazon. And it comes with instructions." Read more

"Perfect for price and need for the ac unit" Read more

17 customers mention17 positive0 negative

Customers are satisfied with the quality of the product. They mention that it is a great quality product, with a stronger starting sound. The generator never faltered, and it is fast dependable repair. Customers are also happy that the breaker has not tripped all summer, and that it's an excellent hard starter.

"...Installed this and generator never faltered the slightest. Put on a 13,500 btu unit. Easy installation. Great results." Read more

"...so I bought this to replace and extremely happy the breaker has not tripped all summer." Read more

"...Best $12 I've spent in a long time. Quality seems good for something so inexpensive." Read more

"...I bought this item, had it installed and the breaker has not tripped EVEN ONCE! If you are having this problem the product is a life saver!..." Read more

12 customers mention9 positive3 negative

Customers like the noise of the capacitor. For example, they say it runs smoothly, without making a rattling noise at startup. They also mention that the unit sounds better when it starts and that it solved the breaker buzz problem.

"So far, it works very well. It starts the compressor quickly and without much noise. Let's see how long it lasts." Read more

"...We have had breaker buzz on start up since new. It solved the breaker buzz problem although that was not the original purpose...." Read more

"...The units start quicker and quieter. The generator does not strain so much and the units actually run quieter over all...." Read more

"...The sound of the A/C unit is now constant with no humming/buzzing anymore. Unit is just over one yr old on my one yr townhouse...." Read more

8 customers mention8 positive0 negative

Customers are happy with the power of the relay. They say it helps start up with less amps, reduces inrush current, and takes the load off of the generator when the AC starts. They also say the small internal battery gives more peak voltage to the starter and even out voltage spikes. Overall, customers are satisfied with the performance of this tool.

"...helps extend the life of the small internal battery, gives more peak voltage to the starter, and even out voltage spikes, and buffer voltage..." Read more

"...RV able to use both AC units because of these relays they help start up with less amps. Love these price is Great easy DYI Project...." Read more

"It definitely does what its designed for, no more surge power consumption. Now the generator work smoothly , great value for tge money" Read more

"These wok great make Rv ac start easier and with less amp draw at start up" Read more

16 customers mention10 positive6 negative

Customers are mixed about the ability to kick start. Some mention that it provides an extra starting boost for the compressor, while others say that it didn't work.

"...I immediately could notice the extra starting boost the compressor had. I needed to dry camp and planned to use a Yamaha 2400HC generator...." Read more

"...AC unit (14 years old) was not working correctly - the compressor was not coming on, and the fan required me to push it to get it going...." Read more

"Gives the kick your compressor needs!! This is just temporarily until I replace the original capacitor...." Read more

"...used it yet but I have used them before and they are great for helping get a compressor started makes compressors start a lot eaiser especially on a..." Read more

12 customers mention0 positive12 negative

Customers have negative opinions about the ease of starting the tool. They mention that it takes awhile to set, and the installation process was a few minutes long. Some customers also mention that the capacitor makes the AC unit hard to start.

"...Very frustrating because it's the whole reason I bought the 3400. I did alot of research and read about capacitors and how they work...." Read more

"...the system pressurizes - that’s when the generator could not re-start the compressor easily...." Read more

"...Before the installation, they would labor to start up. If we were running the generator, it would bog down...." Read more

"I love what these do but there is very little instruction for installation...." Read more

Good
4 Stars
Good
Good for ac compresor
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5.0 out of 5 stars Speedy delivery & good products.
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