--- product_id: 435435094 title: "540-648 uF MFD 110-125 VAC Run Motor Start Capacitor" brand: "bluestars" price: "B/.48" currency: PAB in_stock: true category: "Blue Stars" url: https://www.desertcart.com.pa/products/435435094-540-648-uf-mfd-110-125-vac-run-motor-start store_origin: PA region: Panama --- # 540-648 µF capacitance range 110-125 VAC rated voltage Operating temp -40℉ to +149℉ 540-648 uF MFD 110-125 VAC Run Motor Start Capacitor **Brand:** bluestars **Price:** B/.48 **Availability:** ✅ In Stock ## Summary > ⚡ Power your motor’s comeback story with BlueStars brilliance! ## Quick Answers - **What is this?** 540-648 uF MFD 110-125 VAC Run Motor Start Capacitor by bluestars - **How much does it cost?** B/.48 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/435435094-540-648-uf-mfd-110-125-vac-run-motor-start) ## 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 - • **Built to Last:** Premium UL, CUL, CEL & TÜV SÜD certified for unmatched safety and durability. - • **Lifetime Peace of Mind:** Backed by 100% lifetime protection—never worry about defects or failures again. - • **Effortless Installation:** Quick 1/4" male terminals with leakage protection resistor—DIY-ready in minutes. - • **Universal Compatibility:** Seamlessly replaces any 540-648 µF, 110-125 VAC motor capacitor for instant upgrade. - • **Extreme Temperature Resilience:** Operates flawlessly from -40℉ to +149℉, perfect for any environment. ## Overview The BlueStars 540-648 µF Run Motor Start Capacitor is a high-performance, universally compatible replacement capacitor designed for 110-125 VAC single-phase motors. Engineered to meet stringent US and Australian safety standards, it features a robust round design, quick-connect terminals, and operates reliably across extreme temperatures. Ideal for HVAC, pool pumps, and general electric motors, it offers easy installation and lifetime protection, making it the go-to choice for professionals and DIYers aiming to restore motor efficiency and avoid costly repairs. ## Description BlueStars 540-648 uF MFD 110-125 VAC Run Motor Start Capacitor | Fits OEM Single Phase Motor Capacitors Condenser Heat Pump Air Conditioner: desertcart.com: Industrial & Scientific ## Features - WHAT YOU GET - 540-648 uf/MFD 110-125 VAC Run Round Start Capacitor. - SPECIFICATIONS - Capacitance: 540-648 uf/MFD; Rated voltage: AC 110-125 Volte; Tolerance : 20%; Shape: Round Run; Capacitor Dimensions: 1.8124 x 3.3884 inch (46 x 86 mm); Operating temperature range: -40℉ to + 149℉/ -40℃ to 65℃; No PCBs. Engineered for safety 10000 AFC anti explosion pressure switch - PREMIUM QUALITY: Compliant with the TOUGHEST US and Australian Standards for AC motor run capacitors, including UL & CUL, CEL and TÜV SÜD - UNIVERSAL REPLACEMENT: Replaces 6FLL1 2MDU5 CAP-540-110. Replaces any brand with the same capacitance capacity and voltage. Will work for 110-125VAC 1/4 in Male Quick-connect. Replaces: 6FLL1 2MDU5 CAP-540-110 - REPLACEMENT FOR: OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner; for pool pump capacitor, water pumps, table saws and general electric motors. - EASY INSTALLATION: No need for wiring or adapter replacement. The capacitors feature two 1/4" terminal connectors and are equipped with a leakage protection resistor at the top - 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 | B09TKVVDPT | | Best Sellers Rank | #2,714 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Industrial Electrical Capacitors | | Brand Name | BlueStars | | Capacitance | 540 microfarad | | Capacitance Tolerance | 20% | | Customer Reviews | 4.4 4.4 out of 5 stars (95) | | Included Components | 1 | | Item Dimensions W x H | 1.81"W x 3.35"H | | Item Highlight | Fits OEM Single Phase Motor Capacitors Condenser Heat Pump Air Conditioner | | Item Shape | Round | | Manufacturer | BlueStars | | Material Type | 540-648 MFD | | Maximum Storage Temperature | 70 °C | | Maximum Voltage | 125 volts | | Model | 540-648 uf/MFD 110-125 VAC | | Mounting Type | Panel Mount | | Number of Items | 1 | | Operating Voltage | 125 volts | | Part Number | 540-648 uf/MFD 110-125 VAC | | Upper Temperature Rating | 65 °C | ## Product Details - **Brand:** BlueStars - **Capacitance:** 540 microfarad - **Material:** 540-648 MFD - **Maximum Storage Temperature:** 70 °C - **Shape:** Round ## Images ![540-648 uF MFD 110-125 VAC Run Motor Start Capacitor - Image 1](https://m.media-amazon.com/images/I/41p7AZGqr6L.jpg) ![540-648 uF MFD 110-125 VAC Run Motor Start Capacitor - Image 2](https://m.media-amazon.com/images/I/4186tZFuckL.jpg) ![540-648 uF MFD 110-125 VAC Run Motor Start Capacitor - Image 3](https://m.media-amazon.com/images/I/41eJ7HX5CtL.jpg) ![540-648 uF MFD 110-125 VAC Run Motor Start Capacitor - Image 4](https://m.media-amazon.com/images/I/41LCo-N+6YL.jpg) ![540-648 uF MFD 110-125 VAC Run Motor Start Capacitor - Image 5](https://m.media-amazon.com/images/I/51Ub8wpJiKL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What does "540-648 uF" mean?** A: "540-648 µF" in a motor run capacitor spec means it has a capacitance range of 540 to 648 microfarads (µF), determining its ability to store electrical energy. This range should match the motor's requirements for optimal operation. **Q: Can I replace a Motor Start Capacitor with a Motor Run Capacitor?** A: Start capacitors give a large capacitance value necessary for a motor to start for a very short period of time (usually seconds long). A start capacitor can never be used as a run capacitor because it cannot handle current continuously. **Q: I've installed the Capacitor, but my machine is still not functioning properly. What's the issue?** A: There might be several reasons for this such as: Incorrect installation, faulty motor, capacitor compatibility or other electrical issues. If the issue persists, please don't hesitate to reach out. We're here to help. **Q: Can a motor start capacitor rated 110-125 volts be hooked up to a 220 volt line input? Will it just burn out?** A: No. The voltage rating of a capacitor indicates the maximum voltage that it can handle safely. If you put a 110-120 capacitor where a 220V is required, it may start the motor a couple of times but will fail very soon. **Q: Can I repair the faulty Capacitor?** A: Capacitors are typically not designed for repair and are considered disposable components. We recommend you to replace by a new one. ## Frequently Bought Together - 540-648 uf/MFD 110-125 VAC Volt Run Round Start Capacitor ±20% Replacement Part by BlueStars - Fit for OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner - VEXUNGA 25uF 25 MFD 370VAC 440VAC 450VAC 50/60Hz CBB65 C65R Run Start Capacitor for AC Unit Fan Motor Start or Pool Pump or Air Condenser Straight Cool - Premium 20 MFD uf ± 5% MFD 370 V VAC or 440 Volt Multi-Purpose Motor Run Round Capacitor by Blue Stars - Compatible for Air Conditioner or Heat Pump Condenser - Pack of 1 --- ## 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.pa/products/435435094-540-648-uf-mfd-110-125-vac-run-motor-start](https://www.desertcart.com.pa/products/435435094-540-648-uf-mfd-110-125-vac-run-motor-start) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-11-10*