Dual Run Capacitor, Round, 30/5/440 uF

Consistent Operation – Jard 12781 Dual Run Capacitor 30/5 MFD (370/440V) for HVAC Applications

The Jard 12781 Dual Run Capacitor is engineered to support demanding HVAC systems by efficiently powering both the compressor and fan motor from a single component. Designed for continuous duty in residential and light commercial environments, it offers the electrical integrity and mechanical resilience required by HVAC professionals.

Manufactured with metallized polypropylene film and encased in an aluminum canister, this capacitor is suitable for systems requiring a 30/5 microfarad rating and dual voltage capacity of 370/440 VAC. Its compact form factor allows easy integration into constrained service compartments.

Advantages for System Designers and Field Technicians

• ✅ Dual Support Function – Provides stable capacitance to both compressor and fan motor, improving equipment performance and reducing circuit complexity.
• ✅ 370/440 VAC Rating – Compatible with systems operating on either standard, allowing greater flexibility in replacements and field stock management.
• ✅ Temperature Resilience – Performs reliably across -40°C to +70°C, suitable for a range of environmental conditions.
• ✅ Aluminum Case with Steel Terminals – Offers excellent corrosion resistance and structural protection in high-vibration environments.

Key Specifications

• Capacitance: 30/5 microfarads (μF)
• Voltage: 370/440 VAC
• Type: Dual Section, Round Metal Can
• Frequency: 50/60 Hz
• Temperature Rating: -40°C to +70°C
• Case Height: 3-1/8 inches
• Diameter: Approximately 2 inches

Installation and Handling Notes

Installation should be performed by certified HVAC technicians following proper lockout/tagout procedures. Ensure terminals are correctly labeled and matched to system schematics. Always confirm discharge before handling or replacing capacitors.

Professional-Grade Application Use

For HVAC Technicians:

The Jard 12781 is designed to satisfy the electrical and physical demands encountered in multi-motor circuit topologies. It reduces component count while maintaining phase shift stability, ideal for high-duty compressor-fan assemblies.

Features Summary

• ✅ Metallized Polypropylene Construction – Ensures dielectric strength and longevity under high-load conditions.
• ✅ Integrated Pressure Interrupter – Provides internal fail-safe against capacitor swelling or rupture.
• ✅ Low ESR Design – Enhances current handling and thermal dissipation for extended service life.
• ✅ UL Recognized Component – Meets industry certification standards for electrical safety and performance.

Upgrade with Confidence

The Jard 12781 Dual Run Capacitor offers dependable service life and field-tested compatibility. Ensure your motor-driven systems operate within specification—choose components trusted by HVAC professionals for mission-critical reliability.