--- product_id: 445341882 title: "50 uf 370/440V" brand: "bluestars" price: "AR$72849" currency: ARS in_stock: true reviews_count: 13 category: "Blue Stars" url: https://www.desertcart.com.ar/products/445341882-50-uf-370-440v store_origin: AR region: Argentina --- # 50 µF ±5% precision 370-440 VAC high voltage range UL & TÜV safety certified 50 uf 370/440V **Brand:** bluestars **Price:** AR$72849 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your AC with confidence — the capacitor that keeps you cool and in control! ## Quick Answers - **What is this?** 50 uf 370/440V by bluestars - **How much does it cost?** AR$72849 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/445341882-50-uf-370-440v) ## Best For - bluestars enthusiasts ## Why This Product - Trusted bluestars brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Power Boost:** 50 µF capacitance with tight ±5% tolerance ensures optimal motor performance every time. - • **DIY-Friendly Installation:** Direct drop-in replacement with clearly labeled terminals—no rewiring or adapters needed. - • **Certified Safety Assurance:** Meets rigorous UL, CUL, CEL, and TÜV SÜD standards for peace of mind and durability. - • **Lifetime Protection Guarantee:** Backed by a 100% lifetime warranty, so you’re covered for the long haul. - • **Universal Voltage Compatibility:** Seamlessly replaces both 370 VAC and 440 VAC capacitors—one capacitor to rule them all. ## Overview The BlueStars 50 µF ±5% CBB65 motor run capacitor is a premium, UL-certified component designed for AC condensers and heat pumps. Compatible with both 370 and 440 VAC systems, it offers precise capacitance, robust safety certifications, and a straightforward DIY installation. Engineered to meet US and Australian standards, it features a durable aluminum casing and a 100% lifetime warranty, making it the smart, cost-effective choice for proactive HVAC maintenance or emergency replacement. ## Description [UL Certified] BlueStars 50 uF MFD ± 5% 370-440 VAC CBB65 Volt Motor Run Round Capacitor - Compatible for AC Condenser Straight Cool or Heat Pump Conditioner: desertcart.com: Industrial & Scientific Review: Easy and fast repair - Capacitor is as described. Works great in my AC unit. For $20 vesus $150 or more that the HVAC company was going to charge. Just pull the power on the wall, remove the cover and then one screw and 3 wires is all it takes. Even people less handy can do this and save a bunch of money. Review: Solid product and a good value - Capacitors are wear items that are best either proactively replaced before they go bad or, at the very least, you should keep a properly rated spare on hand for when the one in your current AC unit inevitably quits. Furthermore, replacing a capacitor is a job that is well within the average DIY’er with nothing but the most basic tools required. There are plenty of YouTube videos on how to do it and do so safely. That is, unless you want to pay an HVAC repair company $200/$300/$400 or more when your capacitor quits (and it will eventually) on the hottest day of the year. Yes, that is what they charge to replace a capacitor. This Blue Stars brand dual run capacitor arrived promptly and when tested with my Klein MM700 multimeter was almost spot on the label rating and well within the claimed 5% tolerance. Replaced an aging Dayton (Grainger) part number 2MEK3B of the same specifications (50 + 7.5 mfd) in a 20 year old Lennox central air unit (not the original capacitor). The dimensions of the Blue Stars capacitor (both diameter and height) matched the Dayton unit being replaced exactly and were consistent with the product listing. The capacitor being replaced was still working and tested OK so it will go on the shelf as a spare. The capacitor itself is clearly marked (C=common, FAN, and HERM (compressor)). Terminals feel solid as does the metal (aluminum) casing. Did not weigh it but felt as heavy (if not slightly more) than the capacitor it was replacing. The product labeling clearly shows China as the place of manufacture but claims it is UL (USA) and CE (Europe) certified (but I have no way to verify this). Product listing in desertcart states a 100% lifetime warranty. Can’t vouch for that either. When installed and tested, the AC unit fired right up with the new capacitor. Far less expensive than I could find locally (Southwest Ohio). Certainly inexpensive enough to either purchase to have a spare on hand or, like me, proactively swap out an aging part before a problem occurs so I could do it at my convenience and schedule. As noted above, replacing a capacitor is not rocket science and within the ability of anyone that can replace a household light switch. Just make sure you get a capacitor of the right microfarad (MFD) rating for your application and TURN OFF THE POWER before you even think about starting the project. This means either flipping the circuit breaker in the main panel for the AC unit off or using the exterior safety disconnect switch where the AC interconnects to the house power. Simply turning off the switch on the furnace or thermostat IS NOT ENOUGH. Also, a capacitor, even one that has failed, can hold a residual charge and, therefore, make sure you discharge the old unit. Again, there are many videos available on how to do this and do it safely. Do some homework if this is new to you as saving a few dollars is not worth a serious injury or electrocution. Can’t comment yet on durability or service life but will update if it fails prematurely. Otherwise, a good solid product and an excellent value. Five (blue) Stars. DISCLAIMER: I am a member of the desertcart Vine program. This means that I receive some products free of charge to use and review. I only request/accept items I will actually use. My reviews are based on this real-world usage – they are not mere regurgitations of the desertcart product description or insincere hype. I am not a shill and I do not consider the fact that an item was provided without charge as part of my ratings. I have given Vine products one star, five stars, and all points in between. I put serious effort into my reviews and they represent my honest opinion of the product. My hope it they will help someone make an informed, educated choice whether or not a product is right for them. ## Features - PART NUMBER: 50 uf or 50 MFD Microfarad Run Round Capacitor. Replaces BOTH 370 VAC & 440 VAC capacitors. - PREMIUM QUALITY: Compliant with the TOUGHEST US and Australian Standards for AC motor run capacitors, including UL & CUL, CEL and TÜV SÜD. - SPECIFICATIONS: - Dimensions: 1.97 x 4.728 inch / 50 x 120 mm - Operating Temperature Range: -13℉ to +158℉/ -25°C to +70°C - No PCBs. Engineered for safety 10000 AFC anti explosion pressure switch. - EXACT REPLACEMENT: The capacitor replacees C350 C350R 97F9802BX 97F9802 JARD 12725 MARS 12225 CR15370R - EASY TO REPLACE: Direct replacement, No wiring or adapter changes required. AC Capacitor has 2 terminals on the top are labeled "Herm" for the compressor motor or "Fan" for the fan, and "C" for the common line. - 100% LIFETIME PROTECTION: Enjoy reliable performance with our lifetime protection, ensuring that your product will always be covered for any defects or issues that may arise. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B094CL1H2K | | Best Sellers Rank | #1,345 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Industrial Electrical Capacitors | | Brand Name | BlueStars | | Capacitance | 50 Microfarad | | Capacitance Tolerance | 5 | | Customer Reviews | 4.6 4.6 out of 5 stars (2,197) | | Included Components | 50 MFD 370-440 VAC CBB65 Capacitor | | Item Shape | Round | | Manufacturer | BlueStars | | Material Type | 50 MFD 370-440VAC | | Maximum Storage Temperature | 158 Degrees Fahrenheit | | Maximum Voltage | 440 Volts | | Model | 50 MFD uf ± 5% MFD | | Mounting Type | Rack Mount | | Operating Voltage | 440 Volts | | Part Number | 50 MFD uf ± 5% MFD | | Upper Temperature Rating | 70 Degrees Celsius | ## Product Details - **Brand:** BlueStars - **Capacitance:** 50 Microfarad - **Material:** 50 MFD 370-440VAC - **Maximum Storage Temperature:** 158 Degrees Fahrenheit - **Shape:** Round ## Images ![50 uf 370/440V - Image 1](https://m.media-amazon.com/images/I/71zRl7ATjQL.jpg) ![50 uf 370/440V - Image 2](https://m.media-amazon.com/images/I/71Rz1Ki1fdL.jpg) ![50 uf 370/440V - Image 3](https://m.media-amazon.com/images/I/71z7emy8CkL.jpg) ![50 uf 370/440V - Image 4](https://m.media-amazon.com/images/I/81X4+reoPPL.jpg) ![50 uf 370/440V - Image 5](https://m.media-amazon.com/images/I/81k0a0EvkkL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy and fast repair *by L***R on April 26, 2026* Capacitor is as described. Works great in my AC unit. For $20 vesus $150 or more that the HVAC company was going to charge. Just pull the power on the wall, remove the cover and then one screw and 3 wires is all it takes. Even people less handy can do this and save a bunch of money. ### ⭐⭐⭐⭐⭐ Solid product and a good value *by D***. on April 13, 2024* Capacitors are wear items that are best either proactively replaced before they go bad or, at the very least, you should keep a properly rated spare on hand for when the one in your current AC unit inevitably quits. Furthermore, replacing a capacitor is a job that is well within the average DIY’er with nothing but the most basic tools required. There are plenty of YouTube videos on how to do it and do so safely. That is, unless you want to pay an HVAC repair company $200/$300/$400 or more when your capacitor quits (and it will eventually) on the hottest day of the year. Yes, that is what they charge to replace a capacitor. This Blue Stars brand dual run capacitor arrived promptly and when tested with my Klein MM700 multimeter was almost spot on the label rating and well within the claimed 5% tolerance. Replaced an aging Dayton (Grainger) part number 2MEK3B of the same specifications (50 + 7.5 mfd) in a 20 year old Lennox central air unit (not the original capacitor). The dimensions of the Blue Stars capacitor (both diameter and height) matched the Dayton unit being replaced exactly and were consistent with the product listing. The capacitor being replaced was still working and tested OK so it will go on the shelf as a spare. The capacitor itself is clearly marked (C=common, FAN, and HERM (compressor)). Terminals feel solid as does the metal (aluminum) casing. Did not weigh it but felt as heavy (if not slightly more) than the capacitor it was replacing. The product labeling clearly shows China as the place of manufacture but claims it is UL (USA) and CE (Europe) certified (but I have no way to verify this). Product listing in Amazon states a 100% lifetime warranty. Can’t vouch for that either. When installed and tested, the AC unit fired right up with the new capacitor. Far less expensive than I could find locally (Southwest Ohio). Certainly inexpensive enough to either purchase to have a spare on hand or, like me, proactively swap out an aging part before a problem occurs so I could do it at my convenience and schedule. As noted above, replacing a capacitor is not rocket science and within the ability of anyone that can replace a household light switch. Just make sure you get a capacitor of the right microfarad (MFD) rating for your application and TURN OFF THE POWER before you even think about starting the project. This means either flipping the circuit breaker in the main panel for the AC unit off or using the exterior safety disconnect switch where the AC interconnects to the house power. Simply turning off the switch on the furnace or thermostat IS NOT ENOUGH. Also, a capacitor, even one that has failed, can hold a residual charge and, therefore, make sure you discharge the old unit. Again, there are many videos available on how to do this and do it safely. Do some homework if this is new to you as saving a few dollars is not worth a serious injury or electrocution. Can’t comment yet on durability or service life but will update if it fails prematurely. Otherwise, a good solid product and an excellent value. Five (blue) Stars. DISCLAIMER: I am a member of the Amazon Vine program. This means that I receive some products free of charge to use and review. I only request/accept items I will actually use. My reviews are based on this real-world usage – they are not mere regurgitations of the Amazon product description or insincere hype. I am not a shill and I do not consider the fact that an item was provided without charge as part of my ratings. I have given Vine products one star, five stars, and all points in between. I put serious effort into my reviews and they represent my honest opinion of the product. My hope it they will help someone make an informed, educated choice whether or not a product is right for them. ### ⭐⭐⭐⭐⭐ Easy install, fixed the heater right away *by R***L on January 29, 2026* Installed this BlueStars 7.5 µF capacitor as a replacement and it was super easy to install. The fit was correct and everything hooked up without any issues. Once installed, the heater started working great immediately. No humming, no delays it did exactly what it was supposed to do. Solid replacement part and saved me from a more expensive repair. Would definitely buy again. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/445341882-50-uf-370-440v](https://www.desertcart.com.ar/products/445341882-50-uf-370-440v) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-03*