Top 10 5-2-1 Hard Start Kit – Air-Compressor Accessories

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1. Five Two One Inc

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Compressor Saver Hard Start Capacitor Model CSR U2 by Five Two One Inc

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Five Two One Inc #ad - Potential relay & start capacitor For Scroll / Reciprocating 208-240V Only. Instructions and mounting hardware included, easy installation. Brand: 5-2-1 five Two One Inc. Model number: CSRU2. For 3 1/2, 4, 5 Ton.
BrandFive Two One Inc #ad
ManufacturerFive Two One Inc #ad
Height0.1 Inches
Length0.1 Inches
Width0.1 Inches
Part NumberCSRU2
ModelCSR-U2

2. CPS

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5-2-1 CSRU2 Compressor Saver for 3/12 to 5 Ton Units

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CPS #ad - About us: with the world's most comprehensive range of Leak Detection technologies, Smart Diagnostic tools, and proven Maintenance Solutions, CPS Products has been The Workingmans Choice since 1989.

Some top-of-the-linea/c units come from the factory with 5-2-1 technology built in. Start-up booster: a 5-2-1 compressor saver significantly reduces the amount oftime your compressor is on high amp start-up. Nowyou can have a 5-2-1 Compressor Saver installed in your A/Cunit by a professional. The reliable choice: this compression savor uses a powerful multi-layer starting capacitor and a smart switch to give your compressor the boost it needs to start up quickly, draw less power and save you money, more reliably, too. Additional information: This product should only be installed by a licensed technician.
BrandCPS #ad
Manufacturer5-2-1 #ad
Height2.3 Inches
Length8 Inches
Weight0.83 Pounds
Width6 Inches
Part NumberCSRU2

3. ATMA SUPPLY

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CSR-U1 5-2-1 Hard Start Device Compressor Saver for 1- to 3-Ton AC Units

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ATMA SUPPLY #ad - This hard start kit works on 1-2-3 tons ac units, 1 x Cable Ties, package includes 1 x CSR-U1 Hard Start Capacitor Kit, 2 x Screws. Easy to install-there are only 3 color coded wires which need to be connected, the stripped wire will be connected to the start winding of the compressor, and the red wire will be connected to the run winding of the compressor.

Or you can look up for a youtube video how to change the parts, the black wire will be connected to the common side if the compressor, it's not hard at all. For any reason you are not completely satisfied, you can request a replacement or a full refund. The compression savor uses a powerful multi-layer starting capacitor and a smart switch to give your compressor the boost it needs to start up quickly, more reliably, draw less power and save you money.

A 5-2-1 compressor saver significantly reduces the amount of time your compressor is on high amp start-up. Using a powerful multi-layer starting capacitor and a smart switch to give your compressor the boost it needs to start up quickly, more reliably, draw less power and save your money.
BrandATMA SUPPLY #ad
ManufacturerATMA #ad
Part NumberCSRU1

4. wadoy

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Compressor Saver for 3.5-4- 5 Tons, Hvac Hard Start Kit, AC Hard Start Capacitor Compatible with 5-2-1 CSR-U2

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wadoy #ad - Hard star capacitor - the capacitor has been pre-wired for you. Quality guarantee - this is non-original aftermarket Parts, but the quality is much better. Start faster - significantly reduces the amount of time it takes for your compressor to start.

Csr-u2 start capacitor uses a powerful multi-layer starting capacitor and a smart switch to give the compressor the boost it needs to start up quickly, more reliably and draw less power. The striped wire will be connected to the Start winding of the compressor and the Red wire will be connected to the Run winding of the compressor. Lower electric bills - Reduces the load on your compressor & Saves Electricity. Prolonged equipment life - this potential relay reduces the amount of time your compressor is on high amp start-up, add years to the life of your compressor and other electrical components associated with your A/C system.

If you have any problem, please contact us, we will be very happy to help you solve it. There are only 3 color coded wires which need to be connected. The black wire will be connected to the Common side of the compressor.
Brandwadoy #ad
ManufacturerWadoy #ad

5. Doublelife

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SHANOER Compressor Saver for 1 to 3 Ton Units Replacement for 5-2-1 CSRU1

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Doublelife #ad - Size:8. 5x4. 5cm/3. 35x1. 77inchHxDia. Working frequency:50/60hz, Rated capacity:270-324uf. This potential relay reduces the amount of time your compressor is on high amp start-up, add years to the life of your compressor and other electrical components associated with your A/C system. Csr-u1 start capacitor uses a powerful multi-layer starting capacitor and a smart switch to give the compressor the boost it needs to start up quickly, more reliably and draw less power. Package include:1 x Compressor Saver Hard Start.
BrandDoublelife #ad
ManufacturerDoublelife #ad
Part NumberSH2020071600335

6. BlueStars

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Compatible for 4 to 5 Ton Units, Hvac Hard Start Kit, NEW 5-2-1 CSR-U3 Compressor Saver AC Hard Start Capacitor by Blue Stars

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BlueStars #ad - Now you can have a 5-2-1 compressor Saver installed in your A/C unit by a professional. No worry on getting wires for your compressor saver as we got you covered. Some top-of-the-line a/c units come from the factory with 5-2-1 technology built in. In case of satisfaction or defaulted supply we offer product replacement withno questions asked.

The wires are of top quality. Prewired for easy installation: our 5-2-1 compressor saver has been prewired making the installation fast and convenient for the professionals. Superb quality: we have designed a compression saver that uses a powerful multi-layer starting capacitor that will give your compressor the boost it requires to start up fast, become more reliable besides being power saving. The reliable compressor saver you need for you’re A/C.

Safety solution: a 5-2-1 compressor saver significantly reduces the amount of time your compressor is on high amp start-up. Cost saving: hard starts to damage your compressor, with our 5-2-1 compressor saver you save yourself from the cost of replacing the entire compressor for your A/Csystem. This 5-2-1 compressor saver improves your A/C system lifetime. 100% customer satisfaction assured: with this 5-2-1 compressor saver we guarantee you better performance for your compressor and long life for your A/C system.
BrandBlueStars #ad
ManufacturerBlueStars #ad
Height3.4 Inches
Length10.6 Inches
Width4.2 Inches
Part NumberCSR-U3

7. Five Two One Inc

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Five Two One Inc CSRU2 Central Air Conditioner Compressor Hard Start Kit Genuine Original Equipment Manufacturer OEM Part

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Five Two One Inc #ad - Shut off electrical power to the central air conditioner unit before installing this part. This compressor hard start kit part number CSRU2 is for central air conditioners. The kit may include multiple parts; refer to your parts diagram for a complete list of parts included. Compressor hard start kit csrU2 connects to the compressor terminals to help start the compressor when the power supply drops below recommended levels. Compatible brands: Five Two One Inc. Genuine original equipment Manufacturer OEM part.
BrandFive Two One Inc #ad
ManufacturerFive Two One Inc #ad
Part NumberCSRU2

8. CPS

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CPS 5-2-1 CSRU1 Compressor Saver for 1 to 3 Ton Units

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CPS #ad - With the world’s most comprehensive range of leak detection technologies, Smart Diagnostic tools, and proven Maintenance Solutions, CPS Products has been The Workingman’s Choice since 1989. It could add years to the life of your compressor and other electrical components associated with your A/C system.

Boost start-up: a 5-2-1 compressor saver significantly reduces the amount of time your compressor is on high amp start-up. About us: cps products is a business built by technicians, for technicians. Now you can have a 5-2-1 compressor saver installed in your a/c unit by a professional! The reliable choice: the compression savor uses a powerful multi-layer starting capacitor and a smart switch to give your compressor the boost it needs to start up quickly, draw less power and save you money, more reliably, too.

Affordability: the cost of a 5-2-1 compression savor is a fraction of the cost of replacing a compressor damaged by hard starts. Additional information: This product should only be installed by a licensed technician. Some top-of-the-line a/c units come from the factory with 5-2-1 technology built in. We design tools for the Professional Service Technician.
BrandCPS #ad
ManufacturerFive Two One Inc #ad
Height0.1 Inches
Length0.1 Inches
Weight0.05 Pounds
Width0.1 Inches
Part NumberCSR-U1
ModelCSR-U1

9. Rectorseal

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Rectorseal 96506 S1-02431995000

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Rectorseal #ad - Recommended by HVAC equipment manufacturers. Rector seal 96506. Proven performance and reliability. 3-year Warranty. Proven performance and reliability. Recommeneded by HVAC equipment manufacturers. The original Patented Design. Mechanical potential relay and Start Capacitor. 3-year. The original Patented Design. Ks1 kick start hard start Kit. Mechanical potential relay and Start Capacitor.
BrandRectorseal #ad
ManufacturerThe Rectorseal Corporation #ad
Height8.5 Inches
Length3.5 Inches
Weight1 Pounds
Width2.75 Inches
Part Number96506
Model96506

10. Sealed Unit Parts Co., Inc.

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

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Sealed Unit Parts Co., Inc. #ad - Increased compressor starting torque. Designed for use on permanent split capacitor single phase a/C and heat pump systems. Relay/capacitor hard start kit 500% incr starting torque. The country of origin is china.
BrandSealed Unit Parts Co., Inc. #ad
ManufacturerSUPCO #ad
Height6.5 Inches
Length6.5 Inches
Weight0.3 Pounds
Width7.25 Inches
Part NumberSPP6
ModelSPP6