Single Run Capacitor, Oval, 45/440 uF

Jard 12948 – 45 MFD 440V Oval Run Capacitor for Continuous Motor Operation

The Jard 12948 Oval Run Capacitor delivers stable electrical performance for single-phase induction motors operating in HVACR applications. Rated at 45 microfarads and 440 VAC, this component is engineered to support blower motors, compressors, and fan assemblies under continuous-duty conditions.

Its sealed oval aluminum case, integrated safety mechanisms, and broad environmental tolerance make it well-suited for both residential and commercial system configurations. The unit is a drop-in replacement for existing capacitors with matching electrical specifications.

Performance Characteristics

• ✅ Capacitance: 45 microfarads (MFD) ±6%
• ✅ Voltage Rating: 440 VAC – handles elevated line voltages without dielectric breakdown
• ✅ Frequency: 50/60 Hz – compatible with standard motor applications
• ✅ Operating Temperature: -40°C to +70°C – rated for outdoor and rooftop unit exposure
• ✅ Construction: Hermetically sealed aluminum housing with rolled edge and pressure-sensitive interrupter
• ✅ Environmental Compliance: Non-PCB, RoHS compliant dielectric system

Physical Dimensions

• Case Shape: Oval
• Case Height: Approx. 4.25 inches
• Width: Approx. 2.806 inches
• Terminal Count: Four 0.250” quick-connect spade terminals

Installation Guidance

The Jard 12948 is suitable for direct replacement where a 45 MFD 440V capacitor is required. Installation should be performed with power isolated and discharged, using insulated tools to avoid arcing. Verify terminal markings and orientation prior to circuit energization. Installation by a licensed technician is recommended to ensure code compliance and prevent system misconfiguration.

Application Suitability

• ✅ Use Case: Fan motors, condenser motors, compressor circuits
• ✅ Industry Use: HVACR service, equipment retrofit, new system commissioning
• ✅ Design Features: Built-in pressure interrupter for overload event containment

Summary

The Jard 12948 45 MFD 440V Oval Run Capacitor is a precision-matched component for motor run support in high-reliability HVAC systems. Its electrical consistency and environmental tolerance make it suitable for field use where durability and accuracy are critical. Specify this capacitor for OEM replacement, general service work, or equipment upgrades requiring dependable motor operation under continuous load.