Single Run Capacitor, Round, 30/440 uF

Consistent Power – Jard by Mars 30 MFD 440V Round Motor Run Capacitor

The Jard by Mars 12741 capacitor is engineered for continuous-duty applications in HVAC systems, delivering consistent performance under demanding operating conditions. With a capacitance of 30 microfarads (MFD) and rated for 440 VAC, this round run capacitor supports single-phase motors to maintain efficient operation and system reliability.

Designed to meet the requirements of contractors in the field, this capacitor offers solid electrical characteristics and physical durability. Whether for replacements or planned system updates, its performance and safety features make it an essential component in electric motor support applications.

Performance Highlights

• ✅ 30 MFD Capacitance – Matches standard motor requirements in HVAC and refrigeration systems.
• ✅ 440 VAC Rating – Suitable for higher voltage loads and environments where voltage stability is critical.
• ✅ Aluminum Case with Steel Terminals – Provides mechanical strength and corrosion resistance.
• ✅ Standard Operating Range – Rated for -40°C to +70°C, supporting operation in varied climate conditions.
• ✅ Built-In Pressure Interrupter – Ensures safe end-of-life failure mode and protection against circuit damage.

Technical Specifications

• Capacitance: 30 microfarads (±6%)
• Rated Voltage: 440 VAC, 50/60 Hz
• Construction: Round metal case with dual quick-connect terminals
• Case Dimensions: Approx. 3-3/8” height × 3/4” diameter
• Dielectric Fluid: Non-PCB, environmentally compliant

Installation Notes

Capacitor installation should be completed by a licensed HVAC technician. Ensure the power supply is fully disconnected before servicing. Verify compatibility with system specifications and adhere to all local and national electrical codes. Always replace capacitors with matching capacitance and voltage ratings.

Field Application Insights

For HVAC Contractors: The 12741 capacitor is compatible with a wide range of blower motors and condenser fans requiring a 30 MFD, 440V rating. It’s particularly well-suited for packaged units and split systems where voltage endurance and thermal stability are essential.

Maintenance Consideration: As a wear component, regular inspection during scheduled service intervals is advised. Replace aged or swollen capacitors immediately to prevent motor failure or operational interruptions.

Key Benefits

• ✅ High Dielectric Strength – Withstands voltage surges and maintains performance over extended duty cycles.
• ✅ Thermal and Electrical Stability – Rated for sustained operation in HVAC environments with fluctuating temperatures.
• ✅ Contractor-Grade Quality – Meets or exceeds ANSI/EIA-463-A performance standards for motor-run capacitors.

Upgrade with Confidence

Choose the Jard by Mars 12741 when specifying or replacing 30 MFD 440V capacitors in motor-run applications. With tested performance and durable design, it ensures the electrical integrity of your HVAC system under demanding field conditions.