---
product_id: 42420116
title: "PowerWell 40 + 5 MFD uf 370 VAC or 440 Volt Dual Run Round Capacitor PW-40/5/R for Condenser Straight Cool or Heat Pump Air Conditioner 40/5 Micro Farad"
brand: "powerwell"
price: "HK$197"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/42420116-powerwell-40-5-mfd-uf-370-vac-or-440-volt
store_origin: HK
region: Hong Kong
---

# 40/5 MFD Dual Run -40C to +70C PowerWell 40 + 5 MFD uf 370 VAC or 440 Volt Dual Run Round Capacitor PW-40/5/R for Condenser Straight Cool or Heat Pump Air Conditioner 40/5 Micro Farad

**Brand:** powerwell
**Price:** HK$197
**Availability:** ✅ In Stock

## Summary

> 🔧 Power Up Your Comfort with Confidence!

## Quick Answers

- **What is this?** PowerWell 40 + 5 MFD uf 370 VAC or 440 Volt Dual Run Round Capacitor PW-40/5/R for Condenser Straight Cool or Heat Pump Air Conditioner 40/5 Micro Farad by powerwell
- **How much does it cost?** HK$197 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/42420116-powerwell-40-5-mfd-uf-370-vac-or-440-volt)

## Best For

- powerwell enthusiasts

## Why This Product

- Trusted powerwell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Manufactured to the toughest USA standards for reliability.
- • **Compact Powerhouse:** Space-saving design: 2" diameter x 5-1/4" tall.
- • **Quality You Can Trust:** Fanatical quality control ensures peace of mind with every order.
- • **Unmatched Versatility:** Replaces both 370 & 440 VAC capacitors seamlessly.
- • **Extreme Temperature Resilience:** Operates flawlessly from -40°F to 158°F.

## Overview

The PowerWell 40 + 5 MFD uf 370 VAC or 440 Volt Dual Run Round Capacitor is a high-performance solution for your air conditioning needs, designed to replace both 370 and 440 VAC capacitors. With a compact size and an impressive operating temperature range, this capacitor meets rigorous USA standards, ensuring reliability and quality for your cooling or heating systems.

## Description

A capacitor is an electric component that temporarily stores an electrical charge. A dual "run capacitor" supports two electric motors, such as a fan motor and a compressor. Round dual run capacitors are used to start and run the unit more efficient. It saves space by combining two physical capacitors into one case. The dual capacitor has three terminals labeled "C", "FAN", and "HERM", which stand for the *C*ommon, Fan, and *HERM*etically sealed compressor.Dual capacitors come in a variety of sizes, depending on the capacitance (µF = MFD = micro farad), such as 60 plus 5 µF, and also the voltage. A 440 volt capacitor can be used in place of a 370 volt, as it is build better, but the 370 can’t be used in place of a 440 volt. It will work for a while and will fail prematurely, as exceeding the capacitor's rated voltage will cause the dielectric to break down and the capacitor to short out. Same as an electric wire- 600V rated wire is better than 300V one .The capacitance(µF or MFD or micro farad) must be the same or stay within 10%+ or 5%- of its original value . Example: 40 µF cap can be substituted by 38 - 44 MFD with the same or better voltage ratings capacitor.If your fan is working but compressor not, or the capacitor is bulged on top most likely your capacitor is defective. Round capacitor can be used to substitute oval shape one with the same MFD AND Volt specs.You will ask “Why I need a Cap that is rated 440V in my A/C?”Answer: You need to realize that a motor is an inductive device. When the supply voltage is applied to the motor run winding, the voltage across the start winding will be increased to a higher voltage value. A motor acts like a transformer with the run winding acting as the primary and the start winding acting as the secondary. This is why the capacitor has a much higher voltage rating than the 230 being the supply voltage.If a Capacitor is not EIA-456-A approved means it is NOT approved for USA market.

## Features

- 40/5 uf or 40/5 MFD micro farad 440 Volt Dual Run Round AC Capacitor . Replaces BOTH 370 & 440 VAC capacitors
- Can size measures 2" diameter x 5-1/4" tall. Operating temperature range -40 C. to +70 C/ -40F to 158F
- Built to the TOUGHEST USA standards for AC motor run capacitors including EIA-456-A and IEC 60252-1:2001
- We are extremely passionate about our products and are fanatical about quality control in our workshops. ORDER NOW with peace of mind. No Catches
- Replacement for 97F9838 , Z97F938 , 97F9838BZ3 , 12786 , RC0108 , 97F9849 , C3DR405 , Z97F9848BZ2 , P291-4054RS , C3405R , HCKS400D050R440Z , P291-4053RS , TT-CAP-40/5/440R , TRCFD405 , TP-CAP-40/5/440R , HC98JA041 , HC98CA040 , HC98CA041 , HC93CZ035

## Product Details

- **Capacitance:** 40 Microfarad
- **Brand:** PowerWell
- **Material:** Copper
- **Shape:** Round
- **Maximum Storage Temperature:** 71 Degrees Celsius

## Images

![PowerWell 40 + 5 MFD uf 370 VAC or 440 Volt Dual Run Round Capacitor PW-40/5/R for Condenser Straight Cool or Heat Pump Air Conditioner 40/5 Micro Farad - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## Frequently Bought Together

- PowerWell 40 + 5 MFD uf 370 VAC or 440 Volt Dual Run Round Capacitor PW-40/5/R for Condenser Straight Cool or Heat Pump Air Conditioner 40/5 Micro Farad
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- PowerWell 45+5 MFD 45/5 uf 370 or 440 Volt Dual Run Round Capacitor PW-45/5/R for Condenser Straight Cool or Heat Pump Air Conditioner - Guaranteed to Last 5 Years

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-26*