---
product_id: 509678552
title: "540-648 uf/MFD 110-125 VAC Volt Run Round Start Capacitor Replacement Part by BlueStars - Exact Fit for OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner"
brand: "bluestars"
price: "20142 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/509678552-540-648-uf-mfd-110-125-vac-volt-run-round
store_origin: HU
region: Hungary
---

# 540-648 µF capacitance 110-125 VAC rated voltage -40℃ to 65℃ operating temp 540-648 uf/MFD 110-125 VAC Volt Run Round Start Capacitor Replacement Part by BlueStars - Exact Fit for OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner

**Brand:** bluestars
**Price:** 20142 Ft
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your comfort with precision and safety!

## Quick Answers

- **What is this?** 540-648 uf/MFD 110-125 VAC Volt Run Round Start Capacitor Replacement Part by BlueStars - Exact Fit for OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner by bluestars
- **How much does it cost?** 20142 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/509678552-540-648-uf-mfd-110-125-vac-volt-run-round)

## 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

- • **Safety First:** Equipped with 10000 AFC anti-explosion pressure switch for worry-free operation.
- • **Built to Last:** Durable aluminum casing with OEM-grade quality guarantees longevity and reliability.
- • **Precision Power Boost:** High 540-648 µF capacitance ensures stable motor startup and peak performance.
- • **Perfect OEM Replacement:** Exact fit for single-phase motor capacitors in condensers, straight cool, or heat pump AC units.
- • **Universal Voltage Compatibility:** Operates seamlessly within 110-125 VAC range for versatile HVAC applications.

## Overview

The BlueStars 540-648 µF Run Round Start Capacitor is a premium OEM replacement designed for single-phase motor capacitors in HVAC systems. Rated for 110-125 VAC and operating between -40℃ to 65℃, it features a durable aluminum build and a 10000 AFC anti-explosion pressure switch, ensuring reliable, long-lasting performance and enhanced safety.

## Description

540-648 uf/MFD 110-125 VAC Volt Run Round Start Capacitor Replacement Part by BlueStars - Exact Fit for OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner

## 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: 46mmX85mm; Operating temperature range: -40℃ to 65℃; No PCBs. Engineered for safety 10000 AFC anti explosion pressure switch
- ✅ REPLACEMENT FOR - OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner
- ✅ PREMIUM QUALITY - The replacement part is made from durable high-quality aluminum and well-tested by the manufacturer - Meets OEM standards - Ensures long-lasting and effective performance. This capacitor will provide your electric motors with an outstanding electrical characteristic of high capacitance stability over time and temperature, and very low internal power loss
- ✅ MONEY-BACK GUARANTEE - For any reason you're not completely satisfied, you can ask for a replacement or full refund, no questions asked

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Maximum voltage | 125 Volts |
| Mounting type | Panel Mount |
| Upper temperature rating | 65 Degrees Celsius |
| Manufacturer | BlueStars |
| Part number | 540-648 uf/MFD 110-125 VAC |
| Item Weight | 132 g |
| Product Dimensions | 2.54 x 2.54 x 2.54 cm; 132 g |
| Item model number | 540-648 uf/MFD 110-125 VAC |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** BlueStars
- **Material:** Aluminum
- **Shape:** Round
- **Operating voltage:** 125 Volts
- **Capacitance tolerance:** 20

## Images

![540-648 uf/MFD 110-125 VAC Volt Run Round Start Capacitor Replacement Part by BlueStars - Exact Fit for OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner - Image 1](https://m.media-amazon.com/images/I/7139T+PYHfL.jpg)
![540-648 uf/MFD 110-125 VAC Volt Run Round Start Capacitor Replacement Part by BlueStars - Exact Fit for OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner - Image 2](https://m.media-amazon.com/images/I/71nGN-YDj+L.jpg)
![540-648 uf/MFD 110-125 VAC Volt Run Round Start Capacitor Replacement Part by BlueStars - Exact Fit for OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner - Image 3](https://m.media-amazon.com/images/I/71urOqymSVL.jpg)
![540-648 uf/MFD 110-125 VAC Volt Run Round Start Capacitor Replacement Part by BlueStars - Exact Fit for OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner - Image 4](https://m.media-amazon.com/images/I/71nLyXUlaIL.jpg)
![540-648 uf/MFD 110-125 VAC Volt Run Round Start Capacitor Replacement Part by BlueStars - Exact Fit for OEM Single Phase Motor Capacitors Condenser Straight Cool or Heat Pump Air Conditioner - Image 5](https://m.media-amazon.com/images/I/71F5EjHkIuL.jpg)

## 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

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-01*