Consistent Motor Support – Jard 12784 Dual Run Capacitor for Demanding HVAC Applications
The Jard 12784 Dual Run Capacitor is engineered to provide sustained electrical support to compressor and fan motors in air conditioning and heat pump systems. With a dual-rated design of 35/7.5 microfarads (MFD) and a voltage tolerance of 370/440 VAC, this component ensures stable motor operation under varied load conditions. Its robust construction and tested specifications make it suitable for both commercial and residential HVAC installations.
Built for high-reliability environments, the Jard 12784 supports long-term system efficiency and reduces maintenance intervals when properly installed. Designed for straightforward integration, its round aluminum housing and compact dimensions provide compatibility with tight mechanical compartments in packaged or split systems.
Why Professionals Specify the Jard 12784
✅ Dual Run Configuration – Combines two capacitors in one unit to power both compressor and fan motors.
✅ 440/370 VAC Rating – Supports high-voltage systems without premature dielectric breakdown.
✅ Tested for Temperature Extremes – Operational temperature range from -40°C to +70°C for stability in field conditions.
✅ Rugged Aluminum Canister – Corrosion-resistant case with sealed terminals for HVAC environments.
✅ OEM-Compatible Form Factor – Dimensions suitable for standard HVAC equipment brackets and mounting straps.
Electrical & Mechanical Specifications
Capacitance: 35/7.5 µF ±6%
Rated Voltage: 370/440 VAC
Frequency: 50/60 Hz
Operating Temp Range: -40°C to +70°C (-40°F to +158°F)
Case Style: Round aluminum
Can Height: 3-7/8 inches
Diameter: 2 inches
Installation and Application Guidance
Installation of the Jard 12784 capacitor should be performed by a licensed HVAC technician to ensure full compatibility with system wiring and proper torque on terminals. Confirm all system voltages are discharged prior to removal or installation. Capacitance and ESR should be verified during diagnostic testing with a calibrated multimeter or LCR meter.
Product Applications
✅ Supports PSC Motors – Designed for permanent split capacitor motors in condenser fan and compressor circuits.
✅ Suitable for OEM Replacement – Matches standard specifications used by major HVAC brands.
✅ Minimizes Motor Stress – Delivers correct phase shift and energy storage for reduced current draw and thermal load.
✅ Versatile Use – Compatible with dual-motor systems in unitary AC and split heat pump installations.
Optimize HVAC Performance with the Jard 12784
The Jard 12784 Dual Run Capacitor is a field-proven solution for professionals seeking consistent motor operation and long-term durability. It meets industry standards for performance in high-demand applications. For installations requiring dependable dual motor start and run support, this capacitor delivers the specifications required to maintain system integrity.