Dual Run Capacitor, Round, 70/5/440 uF

Jard 70/5 µF Dual Run Capacitor – 370/440V, Round Aluminum Case

The Mars 12823 Jard Dual Run Capacitor is designed to provide reliable capacitive support for both compressor and fan motor circuits in single-phase HVAC systems. With a capacitance rating of 70/5 microfarads and a voltage tolerance of 370/440 VAC, this dual-section capacitor meets the performance requirements of modern air conditioning equipment operating under continuous-duty conditions.

Manufactured with metallized polypropylene film and enclosed in a sealed aluminum canister, this capacitor offers long-term stability and mechanical durability. It is well suited for replacement applications in residential and light commercial systems where high capacitance and dual-motor support are required within a compact footprint.

Functional Advantages

• ✅ Dual Capacitance: Combines 70 µF (compressor) and 5 µF (fan motor) support in a single enclosure.
• ✅ Rated Voltage: 370/440 VAC – Compatible with a wide range of HVAC system voltages.
• ✅ Operating Temp Range: -40°C to +70°C – Engineered for outdoor units exposed to fluctuating ambient conditions.
• ✅ Sealed Aluminum Case: Oil-free, corrosion-resistant construction suitable for rooftop or pad-mounted condensers.
• ✅ Standard Form Factor: 4-3/8" height × 2-1/2" diameter – Fits most OEM mounting brackets without modification.

Technical Specifications

• Model: Mars 12823
• Capacitance: 70/5 µF ±6%
• Voltage: 370/440 VAC
• Frequency: 50/60 Hz
• Temperature Range: -40°C to +70°C
• Case Material: Round aluminum
• Terminals: ¼" quick-connect spades

Installation Guidelines

The Mars 12823 capacitor should be installed by qualified HVAC personnel. Prior to installation, verify the system's voltage and capacitance requirements. Isolate power, discharge the old capacitor safely, and confirm polarity before attaching leads. The capacitor should be mounted securely using existing bracket hardware and checked for continuity with appropriate test instruments.

Field Applications

This capacitor is suited for equipment where both compressor and fan motor loads are present, typically found in condensing units and air handlers. The dual-section design helps streamline system wiring and reduce inventory of separate capacitors. It is commonly used in new installations, scheduled maintenance, and emergency service calls for rapid field replacement.

Contractor Benefits

• ✅ Streamlined Configuration: Replaces two single capacitors with one component.
• ✅ Universal Voltage Compatibility: Dual-rated for systems operating on either 370V or 440V.
• ✅ Compact and Durable: Fits into tight compartments while maintaining reliable thermal and electrical performance.
• ✅ Service-Grade Build Quality: Manufactured to withstand vibration, voltage transients, and daily operational stress.