
Hartland Controls CAP-4/440 Run Capacitor
The Hartland Controls CAP-4/440 Run Capacitor is a high-performance 4 MFD run capacitor designed for continuous duty in residential and light commercial HVACR systems. Built with an oval aluminum case, this component is engineered to support fractional horsepower motors, ensuring optimal phase angle and motor efficiency. Its dual voltage rating of 370/440Vac allows for versatile field replacement, as it can safely replace any 370V or 440V single-section capacitor without compromising the lifespan of the motor windings. Utilizing metalized polypropylene film and non-PCB oil, this capacitor features an internal pressure-sensitive interrupter (UL 810 compliant) to provide a secondary safety switch against case rupture. For the veteran technician, this is a "truck stock" essential that meets EIA-456-A standards, delivering stable 50/60 Hz performance even under high-ambient conditions. Its standard 1/4-inch quick connect terminals ensure rapid installation and secure electrical contact for reliable fan and compressor operation.
Key Benefits
- Dual Voltage Compatibility: Rated for 370V and 440V applications, reducing the need for multiple SKUs on your service van.
- High Reliability: Designed for an operational life of 60,000 hours, outperforming standard HVAC motor capacitors in thermal stability.
- Safe Construction: Features a 10,000 AFC anti-explosion safety switch and self-healing dielectric film.
- Compact Profile: The slim oval run capacitor footprint fits easily into tight control boxes where space is at a premium.
Common Questions
- Can I use a 440V capacitor to replace a 370V one? Yes. You can always go up in voltage rating (e.g., using a 440V for a 370V system), but never down, as it will cause premature failure.
- What happens if the capacitance (MFD) is off? Sizing is critical. Using a capacitor with an incorrect microfarad rating can cause the motor to run hot, leading to high amperage draw and potential motor failure.
- Does it matter which way I connect the wires? On a single-run capacitor like the CAP-4/440, there is no polarity, but it is best practice to follow the original wiring configuration for consistency.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $4.96
-65%$4.96
$1.74Hartland Controls CAP-4/440 Run Capacitor
The Hartland Controls CAP-4/440 Run Capacitor is a high-performance 4 MFD run capacitor designed for continuous duty in residential and light commercial HVACR systems. Built with an oval aluminum case, this component is engineered to support fractional horsepower motors, ensuring optimal phase angle and motor efficiency. Its dual voltage rating of 370/440Vac allows for versatile field replacement, as it can safely replace any 370V or 440V single-section capacitor without compromising the lifespan of the motor windings. Utilizing metalized polypropylene film and non-PCB oil, this capacitor features an internal pressure-sensitive interrupter (UL 810 compliant) to provide a secondary safety switch against case rupture. For the veteran technician, this is a "truck stock" essential that meets EIA-456-A standards, delivering stable 50/60 Hz performance even under high-ambient conditions. Its standard 1/4-inch quick connect terminals ensure rapid installation and secure electrical contact for reliable fan and compressor operation.
Key Benefits
- Dual Voltage Compatibility: Rated for 370V and 440V applications, reducing the need for multiple SKUs on your service van.
- High Reliability: Designed for an operational life of 60,000 hours, outperforming standard HVAC motor capacitors in thermal stability.
- Safe Construction: Features a 10,000 AFC anti-explosion safety switch and self-healing dielectric film.
- Compact Profile: The slim oval run capacitor footprint fits easily into tight control boxes where space is at a premium.
Common Questions
- Can I use a 440V capacitor to replace a 370V one? Yes. You can always go up in voltage rating (e.g., using a 440V for a 370V system), but never down, as it will cause premature failure.
- What happens if the capacitance (MFD) is off? Sizing is critical. Using a capacitor with an incorrect microfarad rating can cause the motor to run hot, leading to high amperage draw and potential motor failure.
- Does it matter which way I connect the wires? On a single-run capacitor like the CAP-4/440, there is no polarity, but it is best practice to follow the original wiring configuration for consistency.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Hartland Controls CAP-4/440 Run Capacitor is a high-performance 4 MFD run capacitor designed for continuous duty in residential and light commercial HVACR systems. Built with an oval aluminum case, this component is engineered to support fractional horsepower motors, ensuring optimal phase angle and motor efficiency. Its dual voltage rating of 370/440Vac allows for versatile field replacement, as it can safely replace any 370V or 440V single-section capacitor without compromising the lifespan of the motor windings. Utilizing metalized polypropylene film and non-PCB oil, this capacitor features an internal pressure-sensitive interrupter (UL 810 compliant) to provide a secondary safety switch against case rupture. For the veteran technician, this is a "truck stock" essential that meets EIA-456-A standards, delivering stable 50/60 Hz performance even under high-ambient conditions. Its standard 1/4-inch quick connect terminals ensure rapid installation and secure electrical contact for reliable fan and compressor operation.
Key Benefits
- Dual Voltage Compatibility: Rated for 370V and 440V applications, reducing the need for multiple SKUs on your service van.
- High Reliability: Designed for an operational life of 60,000 hours, outperforming standard HVAC motor capacitors in thermal stability.
- Safe Construction: Features a 10,000 AFC anti-explosion safety switch and self-healing dielectric film.
- Compact Profile: The slim oval run capacitor footprint fits easily into tight control boxes where space is at a premium.
Common Questions
- Can I use a 440V capacitor to replace a 370V one? Yes. You can always go up in voltage rating (e.g., using a 440V for a 370V system), but never down, as it will cause premature failure.
- What happens if the capacitance (MFD) is off? Sizing is critical. Using a capacitor with an incorrect microfarad rating can cause the motor to run hot, leading to high amperage draw and potential motor failure.
- Does it matter which way I connect the wires? On a single-run capacitor like the CAP-4/440, there is no polarity, but it is best practice to follow the original wiring configuration for consistency.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












