Mars 12807 – Jard 7.5 µF 440V Round Motor Run Capacitor
The Mars 12807 is a single-value motor run capacitor from the Jard product line, designed to support continuous-duty HVAC motor applications operating on 50/60 Hz circuits. With a 7.5 microfarad (µF) capacitance and 440-volt AC rating, this capacitor is commonly used with fan motors and other permanent split capacitor (PSC) motors in heating and cooling systems.
Constructed with metallized polypropylene film in a non-PCB, oil-free aluminum case, the unit includes a pressure-sensitive interrupter for internal fault protection. Terminals are configured for quick-connect installation, and the cylindrical form factor allows integration into space-constrained equipment housings.
Specifications
Manufacturer: Mars (Jard)
Model: 12807
Capacitance: 7.5 µF
Voltage Rating: 440 VAC
Frequency: 50/60 Hz
Case Type: Round aluminum
Terminal Type: ¼" quick-disconnect
Height: Approximately 2.5 inches
Diameter: Approximately 0.75 inches
Temperature Range: -40°C to +70°C
Interrupter: Yes, pressure-sensitive
Dielectric Type: Metallized polypropylene film
UL Recognized: Yes
Non-PCB: Yes
Application Notes
Suitable for HVAC motors requiring a 7.5 µF, 440V run capacitor
Designed for continuous operation in fan motors, compressors, and blowers
Commonly used in replacement or OEM-matching applications
Compatible with equipment requiring physical protection and fault interruption capability
Installation Recommendations
This capacitor is manufactured for straightforward integration in motor circuits; however, to ensure proper operation and code compliance, installation should be completed by a qualified technician. Always verify voltage and capacitance specifications against system requirements prior to replacement.
Key installation practices:
Disconnect power and discharge old capacitor safely
Match terminal configuration and wiring scheme
Secure capacitor to reduce vibration exposure
Inspect system performance post-installation