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Kelvin S36

Simple to install, silent operation, powerful performance and easy expandability define the Kelvin Series.  The silent high-performance ceramic pump is strong enough to support considerable expansion, should you decide to include GPU blocks and/or additional radiators in the same loop.

The Kelvin Series water cooling systems are constructed from enthusiast class components. Both the CPU block and the radiator are made from pure copper, for maximum performance and an increased product life span with zero maintenance required.

All modern CPU sockets are supported by the versatile, easy-to-use mounting kit.

Key features

  • Fantastic cooling performance
    • The strong pump and the full-copper construction places the Kelvin Series water cooling system ahead of the pack in cooling performance.
    • Pump resistor included for the ability to optimize the system to a lower noise level, while maintaining impressive performance levels
    • Dynamic GP-12 PWM fans for quiet operation with significantly large airflow
    • Wide PWM speed range, 500-2000 RPM, providing accurate and better fan speed control with quieter operation
  • Expandable system. Just open it up to get the full benefits of custom water cooling, with the ability to add any components you want to the loop, such as a graphics card cooler.
    • High pressure pump allows strong water flow rates even when an additional CPU or GPU water block or an additional radiator has been added to the loop.
    • Standard G 1/4" thread fittings for compatibility with the vast majority of enthusiast water cooling products.
    • The tubes are fastened with two-part brass fittings, providing a secure seal while being easy to open and re-seal with a standard wrench.
    • Easy refilling with dedicated fill port. Extra strong fill port that can be accessed by hand, with an allen key or with a coin for easy durable handling.
  • Made with enthusiast-grade components developed in cooperation with Alphacool
    • Highly reliable ceramic bearing pump, with custom tuned maximum RPM for the optimal balance between performance and noise level
    • made with a revolutionary copper/nylon radiators
    • Full copper CPU Water block design featuring strategic jet plate improvements
  • Avilable in many radiator configurations
    • Available with a triple fan radiator, a 30mm thick 360, providing a much larger area than nearly all other pre-filled water cooling units
    • Also available in the two most common formats: thin 240mm and thick 120mm
  • Long lifetime. The performance of most pre-filled water cooling systems degrade quite significantly over time,  because of galvanic corrosion and water loss.
    • Galvanic corrosion occurs over time when two metals with different galvanic potential (such as aluminum and copper) are in contact. It can be slowed with anti-corrosion additives in the water, but the best way to maintain performance over time is to use metals with similar galvanic potential. The Kelvin Series water cooling system is constructed with pure copper in both the radiator and the water block, along with brass fittings.
    • To avoid the common issue of most pre-filled water cooling units (that tend to lose performance over time due to water loss in the tubes), Fractal Design equipped the Kelvin series with a fill dedicated port.

General Specifications:

  • Block/pump assembly measurements: 69*69*40 mm 
  • Tubing Measurements: 320mm long, 11mm outer and 8mm inner diameter 
  • Fitted with anti-kink coils for worry-free installation 
  • Kelvin S36 Radiator Measurements: 30*124*397mm
  • Thread class for fill port and all tube fittings: G 1/4" 
  • Supported sockets:  Intel: 775,1150,1151,1155,1156,1366,2011,2011-v3; AMD: AM2,AM2+,AM3,AM3+,FM1,FM2,FM2+ 
  • Fans included: 3 pcs
  • Fractal Design Zero™ Thermal Paste ; 1 g syringe, sufficient for multiple mountings 
  • Colors Available: Black 
  • Net weight - Base unit only, not including mounting or fans: 1.4 kg
  • Net weight - Dynamic GP-12 PWM fan, per fan: 159 g
  • Net weight - Total excluding packaging and manual. Includes fans, mounting kit for all platforms, cooling paste (including packaging for the cooling paste) and adapter cable: 2.2 kg
  • Package dimensions - W x H x D: 440*253*151 mm
  • Package weight: 3.0 kg

Fan Specification:

  • Fractal Design Dynamic GP-12 PWM fans
  • 500 - 2000 RPM
  • PWM control 
  • Max air flow: 87.6 CFM 
  • Max pressure: 2.30 mm H2O 
  • Acoustical noise: 32.2 dB(A) 
  • DC 12V, 0.20A 

Pump Specification:

  • Ceramic bearing 
  • 2400 RPM 
  • Voltage control 
  • Maximum water flow: 72 l/h 
  • Maximum pressure: 1.0 m H2O 
  • Acoustical noise: 25.0 dB(A) 
  • DC 12V, 0.27A 

Package Contents:

  • Fractal Design Kelvin S36 pre-assembled Water Cooling Unit
  • 3 Fractal Design Dynamic GP-12 PWM controlled fans
  • Intel 775,1150,1151,1155,1156,1366 mounting hardware (including back plate)
  • Intel 2011, 2011-v3 mounting hardware
  • AMD AM2,AM2+,AM3,AM3+,FM1,FM2,FM2+ mounting hardware
  • PWM splitter cable
  • Low speed cable for pump (9V)
  • Fractal Design Zero™ Thermal Paste, 1g Syringe
  • Long and short radiator mounting screws
  • User manual

Additional information:

  • Product Number: FD-WCU-KELVIN-S36-BK
  • EAN Code: 7350041082576
  • UPC code: 817301012577 

Block/pump assembly measurements

  • 69*69*40 mm

Tubing Measurements

  • 320mm long, 11mm outer and 8mm inner diameter
  • Fitted with anti-kink coils for worry-free installation

T12 Radiator Measurements

  • 46*132*163 mm

S24 Radiator Measurements

  • 30*124*275

S36 Radiator Measurements

  • 30*124*397

Thread class for fill port and all tube fittings

  • G 1/4"

Supported sockets

  • Intel: 775,1150,1155,1156,1366,2011
  • AMD: AM2,AM2+,AM3,AM3+,FM1,FM2,FM2+

Fans included

  • 2 pcs (T12 & S24)
  • 3 pcs (S36)

Fan Specification

  • Fractal Design Silent Series HP 120 mm
  • 800 - 1700 RPM
  • PWM control
  • Max air flow: 62.4 CFM
  • Max pressure: 2.33 mm H2O
  • Acoustical noise: 26.9 dB(A)
  • DC 12V, 0.18A

Pump Specification

  • Ceramic bearing
  • 2400 RPM
  • Voltage control
  • Maximum water flow: 72 l/h
  • Maximum pressure: 1.0 m H2O
  • Acoustical noise: 25.0 dB(A)
  • DC 12V, 0.27A

Thermal Paste

  • Fractal Design Zero™ Thermal Paste
  • 1 g syringe, sufficient for multiple mountings

Colors Available

  • Black


"With this being Fractal Designs first entry into the world of CPU cooling I have to give them credit for doing alot of things right, the all copper radiator is a big bonus, The expandability offers people a level of customisation you don’t normally see in AIOs and The cooling power is simply sensational.Fractal Designs Kelvin S36 is a true enthusiast level AIO cooling solution, the ease of use, great aesthetics and stunning performance say it all really.The collaboration with Alphacool really has paid off and Fractal Design have delivered a truly great product in the form of the Kelvin S36 and as such I’m pleased to award it The Game Technician Platinum Essential Award."



"Nyt sitä voi suositella luottavaisin mielin lähinnä käyttäjille, jotka haluavat panostaa äärimmäisen hiljaisuuden sijaan jäähdytystehoon tai ovat valmiita vaimentamaan koteloaan riittävästi halutun lopputuloksen saavuttamiseksi."

Read Full Review At Muropaketti.com

 PC.SK 2015-11-16

"Situáciu nakoniec vyriešil doplňovací port na samotnom CPU bloku chladiča Kelvin S36, pýtate sa ako? Vodou som naplnil len samotný radiátor. Následne som všetko prepojil (CPU-> GPU-> radiátor) s tým, že som nezapojil intake hadicu od CPU k radiátoru a outake z radiátora."

Read Full Review At PC.sk



"Het maakt de Kelvin S36 voor mensen op zoek naar een leuke kant en klare waterkoeler een prima koop, en vooral zij die op zoek zijn naar een 360mm model zullen blij zijn te leren dat de Kelvin S36 niet alleen de goedkoopste 360mm AIO momenteel op de markt is, maar tevens ook één van de weinige die daadwerkelijk verkrijgbaar is."

Read Full Review At Techtesters.eu

GAMESITE.SK 2015-10-11

"Kelvin S36 sa počas nášho testovania ukázal byť prémiovým uzavretým chladením s rozmerným radiátorom, ktorý si dokáže v bezpečných medziach poradiť aj s tými najnáročnejšími procesormi, a pritom nezaťažuje okolie hlukom lietadlovej turbíny. Možnosť pridať do obehu ďalšie radiátory a komponenty je naozaj skvelá správa pre hráčov."

Read Full Review At Gamesite.sk

LAB501.RO 2015-09-24

"Daca in cazul racirii cu aer am ales un cooler bine cunoscut (Noctua NH-D15) pentru a exemplifica utilizarea unui AIO am ales un model produs de Fractal Design, mai precis Kelvin S36."

Read Full Review At LAB501.ro


CRAZYPC.RO 2015-08-23

"Un utilizator care dorește să scape de orice incompatibilitate cu memoriile RAM sau cu plăcile video dar și să aibă de asemenea temperaturi cât mai scăzute la procesor Kelvin S36 rămâne una dintre cele mai inspirate opțiuni."

Read Full Review At Crazypc.ro

PC.SK 2015-09-22

"Montáž to nebola nijak komplikovaná a ani komponenty neboli špičkové. A tu je práve priestor pre vás čitatelia nakoľko skrinka a chladič bude k dispozícii je pre jedného z vás! Na našom fóre beží totiž súťaž a jeden z vás dostane od nás k dispozícii skrinku Fractal Design Define S s chladičom Fractal Design Kelvin S36 (ktoré mu už zostanú), na ktorých môžu ukázať svoje umenie. Latku som nenastavil vysoko a tak sa môžete ukázať."

Read Full Review At PC.sk



"the Kelvin S36 AIO CPU cooler has struck a good balance between size, performance and aesthetics well positioning this as a high-end all-in-one water cooling unit that is capable of nearly keeping up with a custom loop. Fractal Design have impressed us with this unit. Not only is it capable of cooling the very toasty Intel Skylake processor under some very demanding conditions, but when you are not overclocking your system within inches of its life it’s nearly inaudible to the ears."

Read Full Review At Performancepsu.com


OVERCLOCK.PL 2015-07-21

"De­biu­tanc­kie chło­dze­nie Frac­tal De­sign to pstry­czek w nos dla wszyst­kich tych, któ­rzy ni­czym man­trę po­wta­rza­ją, że w sfe­rze pre­kon­fi­gu­ro­wa­nych ukła­dów wod­nych nie mo­że wy­da­rzyć się nic cie­ka­we­go. Na prze­kór scep­ty­kom Szwe­dzi przy­go­to­wa­li ze­staw, któ­ry w do­sko­na­ły spo­sób łą­czy za­le­ty de­fi­ni­cyj­nych ukła­dów wod­nych z za­le­ta­mi chło­dzeń all-in-one."

Read Full Review At Overclock.pl

WATERMOD.NET 2015-06-10

"Commercialisés respectivement autour de 120, 140 et 170eur, ces Fractal Kelvin T12, S24 et S36 se posent comme de sérieux rivaux auprès de la concurrence. Avec de bonnes performances, un look sobre et classe, une modularité que peu d'autres AIO possèdent, ils ont de quoi séduire un public aussi bien amateur qu'averti."

Read Full Review At Watermod.net

KITGURU.NET 2015-05-19

"The Kelvin S36 cooler is a beast of a system that clearly isn’t stressed by a Core i7. With the BIOS set to silent it cools tolerably well and as you step up through the cooling profiles the temperatures drop." 

Read Full Review At Kitguru.net


MADSHRIMPS.BE 2015-05-19

"The Kelvin series continue to build a bridge between the closed loop AIO's and the Do-It-Yourself water loops. Combining a pre-filled loop, thus the ease of installation and the need of zero maintenance, with upgradeability and all this at a very low noise output. Especially the latter was something vital that was missing from most AIO solutions. As cooling performance could only be warranted when being used with high speed fans. All this till now as Fractal Design has truly raised the bar with this Kelvin S36. Time for Asetek and co to step-up, wouldn't you agree:)" 

Read Full Review At Madshrimps.be


OCAHOLIC.CH 2015-02-02

"Darüber hinaus ist die Kühlleistung schlicht ausgezeichnet."

Read Full Review At OCaholic.ch



"Proposé à un tarif d'environ 135€ le Fractal Design Kelvin S36 peut paraitre cher mais il ne faut pas oublier qu'il propose un radiateur tout en cuivre et une modularité qui permettra d'ajouter par exemple un waterblock pour carte graphique, au final cela sera bien moins onéreux que de passer directement à un watercooling "home made". Il sera capable de refroidir une grosse config gamer overclockée sans le moindre problème."

Read Full Review At ConseilConfig.com


EUROGAMER.DK 2015-03-12

"Hvor skal jeg starte? At sige at Fractal Design har haft en succesfuld køler-debut er en underdrivelse af rang. Temperaturene jeg målte, overgik mine forventninger..."

Read Full Review At Eurogamer.dk


HWT.DK 2015-01-24

  "Forventingerne var store da jeg fik pakken og fik pakket Kelvin S36 køleren ud. Vi er jo alle sammen vant til at Fractal står for kvalitet og funktionalitet og jeg må sige de har leveret varen atter en gang. Kelvin S36 ser godt ud og køler godt når den kører på fuld knald, selv når man overclocker. Når man står med køleren i hånden er man ikke i tvivl om at Fractal på ingen måde har skåret nogen hjørner, men derimod har lavet et produkt der oser af kvalitet og styrke."

 Read Full Review At Hwt.dk


TWEAK.DK 2015-01-30

  "De præsenterer også nogle rimelige priser, og det sætter jeg især op imod det faktum, at kølerne let og enkelt kan udvides til at køle grafikkort, chipsets, RAM, VRM eller hvad man nu måtte ønske. Det er faktisk kun fantasien, og ultimativt selvfølgelig pumpens liter pr. time, der sætter begrænsningen. Jeg tildeler testen en samlet score på 9, hvoraf T12 desværre må nøjes med 7.5, mens S24 rammer 8, og S36 bliver vinderen af det flotte 9-tal og en Great Product Award."

 Read Full Review At Tweak.dk


TWEAKTOWN.COM 2015-01-27

 "The system is attractive with its shiny black top plate on the head unit that matches the shine of the tubing and the coils around it. Even when we get to the radiator, it isn't painted with the typical dull black paint; all of it is sleek, yet simple, and the company name on the radiator and the head unit really shows the branding well in a chassis. On top of just being the typical AIO, there is still the option of expandability, and with the Kelvin S36, there is not a better solution to try from Fractal Design."

Read full Review At Tweaktown.com


"The Fractal Design Kelvin S36 does perform really well, and even though we had to tinker around a bit to find the right balance we were more than happy with it. Yes there are issues but you have to remember nothing is perfect, if it was it would make our job of writing a review boring."

Read Full Review At Skratchwizpc.net


KITGURU.NET  2015-01-06

"Overall we are very impressed with that the Fractal Design Kelvin S36 has to offer.  It is is a refreshing to see a manufacturer entering the all-in-one liquid cooling market with a product which actually offers something different to the existing products on offer[...]The build quality and design of the cooler is nothing short of excellent"

Read Full Review At KitGuru.net


OVERCLOCK3D.NET  2014-12-16

"The King is Dead", "Long Live the King".  Yes Ladies we have a new performance cooler at the top of the charts.  It comes in the shape of the brand new S36, which, as the name alludes to is a 360mm radiator based AIO cooler from Fractal Designs new Kelvin series.[...]With straight tens the S36 takes our gold award and as an extra scoops the Silence award that recognises the chaps at Fractal Design achieving what AIO manufacturers should have done years ago."

Read Full Review At Overclock3d.net 



"First up, build quality. Overall Fractal Design have done well on this front. We noticed no defects in the construction and materials used. The fittings feel solid and there were no areas of flex or cheap plastic on show. In fact the pump with its minimalist design looks rather nice compared to some alternate models.[...] Well designed, good build quality and potential for future upgrades. All good aspects which compliment some high end performance".

Read Full Review At Hardwareheaven.com 


"Le S36 s'est montré le plus performant. Logique, vu la taille de l'engin. Très à l'aise dans tous les sens, avec ou sans ses ventilateurs d'origine, en devant supporter une carte graphique, il ne faillira pas. Nous n'irons pas jusqu'à dire que les Kelvin sont silencieux, mais ils font clairement partie des moins bruyants!"

Read Full Review At Comptoir-Hardware.com

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