--- product_id: 51561237 title: "MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty" brand: "maxrun capacitors" price: "S/.10" currency: PEN in_stock: true url: https://www.desertcart.pe/products/51561237-maxrun-45-5-mfd-uf-370-or-440-volt-vac store_origin: PE region: Peru --- # 45/5 MFD 370/440 VAC 10,000 AFC MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty **Brand:** maxrun capacitors **Price:** S/.10 **Availability:** ✅ In Stock ## Summary > 🔧 Upgrade Your AC Game with MAXRUN! ## Quick Answers - **What is this?** MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty by maxrun capacitors - **How much does it cost?** S/.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/51561237-maxrun-45-5-mfd-uf-370-or-440-volt-vac) ## Best For - maxrun capacitors enthusiasts ## Why This Product - Trusted maxrun capacitors brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Engineered with a 10,000 AFC safety pressure switch for peace of mind. - • **Unleash Dual Power:** Effortlessly runs both compressor and fan for optimal cooling. - • **Precision Engineering:** Built to EIA-456-A and IEC 60252-1:2001 standards for reliability. - • **Universal Compatibility:** Works seamlessly with both 370 and 440 volts for versatile applications. - • **Hassle-Free Installation:** Quick and easy replacement process to get you back up and running. ## Overview The MAXRUN 45+5 MFD Dual Run Capacitor is a high-performance component designed for air conditioners and heat pumps. Measuring 4 inches tall and 2 3/8 inches wide, it operates efficiently at both 370 and 440 volts. Built to stringent safety standards, it features a 10,000 AFC safety pressure switch and is free from harmful PBA materials. This capacitor is engineered for easy installation, ensuring a quick replacement process for your cooling systems. ## Description SPECIFICATIONS FOR THE MAXRUN 45/5 MFD 370/440 VOLT CAPACITORThe capacitor is 2 3/8" in diameter by 4" in height - Please check your specifications carefully.This Capacitor is rated for 440 Volts which means it will work at 370 or 440 VAC. It will also run from -40 C. to +70 C. It is safety rated at 10,000 AFC.A dual run capacitor, such as this 45/5, combines two capacitors into one unit. It will power a compressor motor and a fan motor, and has three terminals on the top. They are labeled "Herm" for the compressor motor, "Fan" for the fan, and "C" for the common line.Run Capacitors work hand in hand with Electric Motors that power the compressors and condensers that make air conditioning work. For this purpose, the Capacitor works the same way as a battery. It stores and releases a large charge very quickly. This released charge gives the motor the spin it needs to start and run correctly.As Air Conditioning Capacitors age, they lose their ability to hold a charge and get weaker.As the capacitor gets older, the motor may get louder and seem to run slower. If replaced before they get weaker, its possible to lengthen the life of the motor. Eventually, the capacitor will get too weak to start the motor and if the motor can't start, it can short out. Timely replacement of the capacitor is essential to Air Conditioning Maintenance.SAFETY TIPS FOR REPLACEMENTWhen replacing a capacitor always be sure to turn off the power to the air conditioning unit and place a screw driver between the terminals of the capacitor to release any stored charge. MaxRun Capacitors are designed to be the correct fit, but it's best to measure the height and width of the capacitor to double check that the replacement unit matches the original. We also recommend keeping a spare so you have one handy when it's needed. ## Features - THIS CAPACITOR is by 4" TALL by 2 3/8" WIDE - MEASURE Old Capacitor for Correct Fit - DESIGNED TO THE HIGHEST STANDARDS - Built to EIA-456-A and IEC 60252-1:2001 specs - DUAL CAPACITOR will run both a COMPRESSOR and FAN and WORKS WITH 370 or 440 VOLTS - ENGINEERED FOR SAFETY - 10,000 AFC Safety Pressure Switch and NO PBA's Used In This Product - EASY REPLACEMENT! Turn off the Power, Mark the Wires, Move the Wires to new Capacitor, Replace Capacitor and turn on Power. ## Product Details - **Brand:** MaxRun Capacitors - **Material:** Metal - **Shape:** Round - **Operating Voltage:** 440 Volts - **Maximum Voltage:** 440 Volts ## Images ![MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty - Image 1](https://m.media-amazon.com/images/I/91TJTpbDPcL.jpg) ![MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty - Image 2](https://m.media-amazon.com/images/I/913vexu94sL.jpg) ![MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty - Image 3](https://m.media-amazon.com/images/I/81FSMQuS-KL.jpg) ![MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty - Image 4](https://m.media-amazon.com/images/I/91wjNmj2EBL.jpg) ![MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty - Image 5](https://m.media-amazon.com/images/I/91NghmsFYgL.jpg) ## Questions & Answers **Q: Do you think it would be ok to replace a 45uf 250VAC cap with this one and just not use the 5uf terminal?** A: It is fine to use this capacitor to replace a 45uf 250VAC, as this capacitor is built to withstand higher voltages and will perform well. However, I would check the size of your old capacitor and make sure that they match. This capacitor is 2 3/8" in Diameter by 4" in Height. Thanks, MaxRun Capacitors **Q: it said 1 year warranty in product description, but it also has a "5 year warranty" picture displayed. which is the real warranty? thanks.** A: Probably 1 if you do it and 5 if you have a licensed electrician **Q: My current capacitor says +-6%, everything else is same. Can I use this even though it says +-5%. What does this % mean? Thanks** A: The +- is the amount of possible variance from the stated capacitance, 45 MFD. The old Capacitor has a possible 6% variance or 39 to 51 MFD. The MaxRun has a 5% possible variance or 40 to 50 MFD which is a higher standard. 10% higher is considered acceptable, but a lower capacitance is not acceptable. **Q: Can i use a 5mfd cap to replace a 7.5 mfd at least temporary?** A: No, if your motor was designed to start with a 7.5 mFd then you need that or more ## Frequently Bought Together - MAXRUN 45+5 MFD uf 370 or 440 Volt VAC 45/5 Microfarad Dual Run Capacitor for Air Conditioner or Heat Pump - Runs AC Motor and Fan - 1 Year Warranty - VEXUNGA 45/5 uF 45+5 MFD 370V or 440V Dual Run Start Round A/C Capacitor 45 5 uF 370 440 Volt VAC CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool - BOJACK 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight --- ## 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.pe/products/51561237-maxrun-45-5-mfd-uf-370-or-440-volt-vac](https://www.desertcart.pe/products/51561237-maxrun-45-5-mfd-uf-370-or-440-volt-vac) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-05-21*