JARD 12790 50/5 MFD Round Run Capacitor (440/370V)
A JARD dual run capacitor used in HVAC equipment to provide the specified run capacitance values for motor operation when the correct replacement capacitor rating is required.
Key Features
- Dual (dual-capacitance) run capacitor: 50/5 MFD
- Voltage rating listed as 440/370V
- Round shape
- Rated for 50/60 Hz operation
- Temperature range listed: -40°C to +70°C
- Operational life listed: 60,000 hours
- Aluminum construction (composition listed as Aluminum)
- Terminal configuration listed as 4, 3, 2
- Manufacturer states: Non-PCB construction and a physical interrupter design for safety
- Manufacturer notes "economy/quality contractor acceptance" and lists UL & CUL capacitors
Compatibility & Applications
- Used as a dual run capacitor in HVAC applications requiring a 50/5 MFD capacitor with a 440/370V rating (the provided sources do not list specific equipment models).
- Must only be used where the manufacturer specifies this exact part number: 12790, and where the required capacitance/voltage ratings match the equipment requirements.
Installation & Operation Notes
- Installation should be performed by a qualified HVAC technician.
- Reference the equipment's service/installation manual for correct wiring/terminal identification and verification procedures after replacement.
Maintenance & Troubleshooting
- This is a run-capacitor replacement component; it is typically addressed during service when the correct capacitor rating is needed to restore proper motor operation.
- The provided sources do not include diagnostic or troubleshooting procedures; follow the equipment documentation for testing criteria and replacement guidance.
Certifications & Compliance
- Listed as UL & CUL capacitors by the manufacturer.
User Reviews & Q&A Summary
- Review themes commonly describe it as a correct replacement used on A/C condenser units, with users reporting it works as expected after installation.
- Frequent comments highlight good pricing and fast shipping, with some reviewers noting it helped them avoid a high service call cost by replacing the part themselves.
- A recurring fit/handling note is that the capacitor may be smaller/shorter than the original, which can require adapting the mounting clamp (for example, using a tie/alternate securing method).
- The most common negative theme relates to packaging/shipping protection, with at least one reviewer reporting bent terminals that needed straightening.