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Quick specs
Capacitance
40+3 MFD
Type
Dual run capacitor
Shape
Round
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
TRADEPRO 40+3 MFD 370/440 VAC Round Dual Run Capacitor TP-CAP-40/3/440R-A
Dual Run Capacitor·370/440 VAC Rated
$45.23
-
- Free shipping — most items ship by the next day
Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.
Secure payment
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TRADEPRO 40+3 MFD 370/440 VAC Round Dual Run Capacitor TP-CAP-40/3/440R-A
Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.
Need help? (888) 292-0874
- Free shipping — most items ship by the next day
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
In stock
In most items, small items ship same day. Complete systems ship next business day.
$45.23
-
Need help? (888) 292-0874
- Free shipping — most items ship by the next day
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
Quick specs
Capacitance
40+3 MFD
Type
Dual run capacitor
Shape
Round
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
OEM-quality designed for reliable continuous duty in residential and light commercial HVAC systems. It combines a 40 MFD section (typically for the compressor/HERM) and a 3 MFD section (typically for the fan) in a single compact round can.
Key Features
- Dual capacitance (40/3 µF) in one unit for compressor and condenser/fan motor
- Dual voltage rating (370/440 VAC) for broad application flexibility
- Round aluminum case with quick-connect (QC) terminals
- Metallized polypropylene film dielectric (self-healing)
- UL Recognized and protected to 10,000 AFC
- Meets EIA-456-A standards with ±3% capacitance tolerance
- Designed and tested for long-term reliability
Benefits
- Provides the phase shift needed for smooth motor starting and efficient continuous running
- Helps reduce motor strain, overheating, and hard-start issues that can lead to premature failure
- Supports consistent system performance and can help restore proper cooling/heating operation when a failed capacitor is the cause
- Compact dual design saves space and simplifies wiring compared to using two separate capacitors
- Long service life under normal operating conditions reduces callbacks and replacement frequency
Specifications
| Attribute | Value |
|---|---|
| Capacitance | 40/3 MFD (µF) |
| Voltage | 370/440 VAC |
| Frequency | 50/60 Hz |
| Tolerance | ±3% |
| Shape | Round |
| Dimensions (L × W × H) | 4.8″ × 2.07″ × 2.07″ |
| Weight | 0.5 lbs |
| Operating Temperature | –40°F to 158°F (–40°C to 70°C) |
| Typical Life | 60,000 hours at rated conditions |
| Construction | Aluminum can, metallized polypropylene film |
| Approvals | UL Recognized |
| Country of Origin | China |
| UPC | 817506022920 |
Compatibility
Universal dual run capacitor suitable for many central air conditioners, heat pumps, air handlers, furnaces, and packaged/RTU units that specify a 40/3 MFD (or 40+3 µF) run capacitor at 370 V or 440 V.
It is a direct functional replacement for equivalent round dual run capacitors of the same capacitance and voltage rating (including common cross-references such as CAP-40/3/440R and similar TradePro/Hartland-style parts).
Important: Always match the exact microfarad rating, voltage rating, and physical shape/size to the original capacitor. Confirm terminal labeling (C / FAN / HERM or equivalent) and mounting clearance before installation. Shape (round vs. oval) primarily affects fit in the existing bracket.
Note: The “-A” suffix commonly indicates a packaging or catalog variant of the standard TP-CAP-40/3/440R; specifications are the same.
This capacitor is intended for professional HVAC use. Proper discharge procedures and electrical safety practices should always be followed during replacement.
Key features
- Dual Run Capacitor — 40 + 3 MFD for compressor and fan
- 370/440 VAC Rated — works in either application
- Round Aluminum Can — fits standard mounting brackets
- TradePro OEM-Quality — for residential and light commercial systems
Why homeowners choose NAW
Genuine OEM parts
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Find your part by model number, add to cart, and get it delivered to your door — no middleman, no markup.
30-day hassle-free returns
Ordered the wrong part? Send it back within 30 days.
Help when you need it
Not sure if this is the right part? Call us at (888) 292-0874 and we’ll help you find the correct replacement.
Customer reviews
What buyers are saying
Verified reviews from customers who purchased this product.
5.0
4 verified reviews
HG
Hendrix G
The 40+3 MFD 370 or 440 VAC Dual Run Capacitor in a round design is a game-changer for my HVAC system, offering exceptional stability and efficiency at a fantastic price. Installation was a breeze, and my air conditioner now runs smoother and more reliably, providing consistent comfort throughout my home.
JF
John F
I recently purchased the 40+3 MFD 370 or 440 VAC Dual Run Capacitor – Round, and I’m thrilled with the unbeatable price, outstanding equipment, and exceptional performance – it’s a game-changer!
A
Anderson
I recently purchased the 40+3 MFD 370 or 440 VAC Dual Run Capacitor – Round, and I’m thrilled to share my excitement about the surprisingly excellent price for such a crucial component. The unbeatable affordability, combined with the capacitor’s reliable performance, makes it an outstanding investment, ensuring optimal efficiency for my system at an unexpectedly great value.
J
Jack
Get ready for a pleasant surprise with the 40+3 MFD 370 or 440 VAC Dual Run Capacitor – Round! Despite its incredibly low cost, this capacitor ensures remarkable performance, ensuring your HVAC system operates smoothly and efficiently. It’s an absolute steal, providing exceptional value and reliable operation for your system’s optimal function!
