Dual Run Capacitor, Round, 25/5/440 uF

Precision Engineered – Jard by Mars Dual Run Capacitor for Demanding HVAC Applications

The Jard by Mars Dual Run Capacitor (Model 12778) is engineered to support continuous, high-efficiency operation in HVAC and refrigeration systems. Built to rigorous standards, it offers consistent start-up support and motor performance in dual-function applications—specifically designed to power both fan and compressor motors in a single unit.

Contractor-Grade Reliability

Developed for commercial and residential installations, the Jard line by Mars is known for its proven durability and industry-grade materials. The 12778 model meets professional demands, maintaining performance under high load and extended run conditions. Its metallized polypropylene film construction ensures stability across voltage fluctuations and thermal cycles.

Product Highlights

• ✅ Optimized Power Support – Enhances compressor and fan motor efficiency, extending component life.
• ✅ Ruggedized Housing – Aluminum canister with rolled edge and steel terminals for improved resilience and vibration resistance.
• ✅ Universal Profile – Compatible with a wide range of OEM systems requiring a 25/5 µF, 370/440 VAC dual capacitor.
• ✅ Wide Temp Endurance – Functional in ambient ranges from -40°C to 70°C for year-round service environments.
• ✅ Field-Tested Longevity – Designed for extended operational life even under continuous load.

Technical Specifications

• Capacitance: 25/5 µF (microfarads)
• Voltage: Dual-rated for 370 VAC and 440 VAC applications
• Frequency: 50/60 Hz
• Operating Temperature: -40°C to +70°C
• Case Height: 3-5/8 inches
• Overall Dimensions: 4-1/8 inches H × 2 inches W

Installation Requirements

Installation should be conducted by licensed HVAC technicians to ensure proper system integration and safety compliance. The 12778 capacitor includes clearly marked terminals for simplified wiring during system replacements or service upgrades.

Professional Use Applications

For HVAC Contractors:

Ideal for repair calls and scheduled maintenance, this capacitor minimizes downtime and provides dependable system stabilization across a range of commercial and residential units. Its dual voltage rating supports versatile deployment scenarios.

Built for Performance

• ✅ Premium Construction – Features metallized film technology and precision-wound dielectric material.
• ✅ Thermal Protection – Designed to handle thermal overloads without compromising core performance.
• ✅ Efficient Form Factor – Compact dimensions ease access in tight equipment compartments.
• ✅ Code Compliant – Manufactured to meet or exceed recognized electrical and safety standards.

Ready for Immediate Specification

The Jard by Mars 12778 dual run capacitor is a work-ready component designed to meet the reliability and endurance needs of today's HVAC professionals. Ensure system uptime with a capacitor engineered for performance-critical environments.