---
product_id: 717597545
title: "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"
brand: "powerwell"
price: "HK$340"
currency: HKD
in_stock: true
reviews_count: 5
category: "Power Well"
url: https://www.desertcart.hk/products/717597545-45-5-mfd-45-5-uf-370-or-440-volt
store_origin: HK
region: Hong Kong
---

# 45+5 µF dual capacitance 440 Volt max operating voltage 5-year durability guarantee 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

**Brand:** powerwell
**Price:** HK$340
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your A/C like a pro — never sweat a breakdown again!

## Quick Answers

- **What is this?** 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 by powerwell
- **How much does it cost?** HK$340 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/717597545-45-5-mfd-45-5-uf-370-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

- • **Dual Power Boost:** Supports both compressor & fan motors seamlessly
- • **Peace of Mind Warranty:** Guaranteed 5 years of uninterrupted performance
- • **Compact & Durable Design:** 2.375" diameter x 4" tall, built to USA EIA-456-A & IEC standards
- • **Extreme Temperature Resilience:** Operates reliably from -40°C to +70°C for all climates
- • **Universal Voltage Compatibility:** Replaces 370V & 440V capacitors with superior 440V rating

## Overview

This premium 45+5 MFD dual run capacitor is engineered for high-performance air conditioners and heat pumps, combining two capacitors into one compact unit. Rated for 440 volts and built to rigorous USA and international standards, it ensures reliable motor starts and long-lasting operation across extreme temperatures. Backed by a 5-year warranty, it’s the smart, durable choice for professionals who demand efficiency and peace of mind.

## Description

A capacitor is an electric component that temporarily stores an electrical charge. A dual "run capacitor" supports two electric motors, such as in large air conditioner or heat pump units, with both a fan motor and a compressor motor. 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 or MFD), such as 40 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) must be the same or stay within 10%+ or 5%- of its original value . Example: 50 µF cap can be substituted by 47.5 to 55 µF with the same or better voltage ratings capacitor . Round cylinder-shaped dual run capacitors are commonly used for air conditioning, to help in the starting of the compressor and the condenser fan motor.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 US market.

Review: Installé depuis plus de 12 mois et ce condensateur fonctionne très bien
Review: Worked as described. I keep a couple of these on hand because they seem to go out at the most inconvenient time. Easy swap to get the AC unit back up and running. I would recommend.

## Features

- 45+5 uf or 45+5 MFD 440 Volt AC Capacitor. Replaces BOTH 370 VAC & 440 VAC capacitors
- Can size measures 2-3/8" diameter x 4" tall. Operating temperature range -40 C. to +70 C/ -40F to 158
- Built to the TOUGHEST USA standards for AC motor run capacitors including EIA-456-A and IEC 60252-1:2001
- GUARANTEED TO LAST 5 YEARS. 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 97F9895 , Z97F995 , 97F9895BZ3 , 27L880 , TRCD455 , TRCFD455 , PRCFD455 , 27L889 , 97F9851 , 97F9851S , 12788 , RC0114 , Z97F9895 , 97F9895 , TT-CAP-45/5/440R , HC98KA046 , TP-CAP-45/5/440R , CAP050450440RT , HC98JA046 , HCKS450D050R440Z , 00662441180262

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01NAZJYWA |
| Best Sellers Rank | #13,564 in Computers ( See Top 100 in Computers ) #77 in Network Repeaters |
| Capacitance tolerance | 5 |
| EU Spare Part Availability Duration | 5 Years |
| Item model number | PW-45/5/R |
| Manufacturer | PowerWell |
| Maximum voltage | 440 Volts |
| Mounting type | Snap-In Mount |
| Operating voltage | 440 Volts |
| Product dimensions | 6W x 10.2H centimeters |
| UPC | 714833366249 |
| Upper temperature rating | 70 Degrees Celsius |

## Product Details

- **Brand:** PowerWell
- **Capacitance:** 50 Microfarad
- **Material:** Copper
- **Maximum storage temperature:** 70 Degrees Celsius
- **Shape:** Round

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61ScFsMvgjL.jpg)

## Questions & Answers

**Q: All the numbers match on my existing one (440 vac, 50/60 hz, +-6%), except for mine has the number 40uf/5uf instead of 45/5 ... will this one work?**
A: A 55 Micro Farad cap will most likely run fine in your unit..  Capacitors work like batteries on start-up of the motor where extra electrical energy assists the unit in overcoming the latency of the motor to start.  Capacitors charge at different times depending on capacity.  Typically it uses 5 time constants for a capacitor to charge and discharge.  All this means that a small cap will charge faster than a large one but means little to the user if they are not using it as some part of a timing circuit.  The Booster Supco Cap  adds extra energy on startup so the unit gets that extra electrical push.  This is a very simplified answer to a somewhat lengthy Study of CAPs in EE courses and how they are used and work.

**Q: Where do I buy the wires to hook it up? I can't splice on the terminals myself**
A: The wires are already on the condenser unit... If you have a separate capacitor for fan don't use that terminal or vice versa

**Q: would this fit C3455R?Thanks**
A: No. PowerWell 45+5 is 2 3/8” Genteq C3455R is 2”

**Q: Dose it fit trane xl16i 4ttx6048?**
A: If your your system issue is the compressor does not start once called and the fan does the you have a capacitor problem. Validate the capacitance in your system; 45uf for the compressor and 5uf for the fan then this product will work. The strap and connector is standard.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***C on 11 January 2026*

Installé depuis plus de 12 mois et ce condensateur fonctionne très bien

### ⭐⭐⭐⭐⭐ Review
*by L***D on 5 December 2025*

Worked as described. I keep a couple of these on hand because they seem to go out at the most inconvenient time. Easy swap to get the AC unit back up and running. I would recommend.

### ⭐⭐⭐⭐⭐ Review
*by M***I on 22 October 2024*

Very happy with this purchase

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-15*