70 uF 370-440 VAC Volts ±5% Round Run Capacitor

70/5 uF MFD 370-440 VAC Round Dual Run Capacitor

Key Features

• Capacitance Rating: 70 + 5 Microfarad (uF/MFD)
• Voltage Rating: 370 or 440 Volts AC (VAC)
• Tolerance: ±5%
• Frequency: 50 / 60 Hz
• Shape: Round
• Construction: Aluminum case with metallized polypropylene film
• Terminals: Three terminals labeled C (Common), HERM (Compressor), and FAN
• Operational Life: Tested for up to 60,000 hours of service life
• Operating Temperature: -40°C to +70°C

Replaces / Cross-Reference Part Numbers

• Replaces any round dual run capacitor with matching 70/5 uF MFD and 370V or 440V specifications.
• Suitable replacement for parts from brands such as JARD, MARS, TEMCo, ClimaTek, Titan Pro, and others.
• Common part numbers include: C3705R, TRCFD705, 97F9895, P291-7054R, CBB65-R.
• Always verify physical dimensions (diameter and height) for proper fit.

Compatibility & Fitment

• Designed for use in HVAC systems, including air conditioners and heat pumps.
• Provides starting and running torque for a compressor motor (70 uF side) and a fan motor (5 uF side) in a single unit.
• Compatible with units from major manufacturers provided the capacitance, voltage, and physical size specifications match the original part.

When to Replace

• The compressor or fan motor hums but will not start.
• The outdoor condenser unit fan spins slowly or requires a manual push to start.
• Visible signs of failure on the existing capacitor, such as a bulging top, swelling, or oily residue leaking from the case.
• The AC system is running but not blowing cold air.

Installation Tips

• Warning: Disconnect all electrical power to the HVAC unit at the breaker panel and service disconnect before handling.
• Safely discharge the old capacitor by shorting the terminals with a resistor or an insulated-handle screwdriver.
• Note or photograph the wire connections to the C, HERM, and FAN terminals before disconnecting.
• Install the new capacitor, ensuring it is secured by the original mounting bracket.
• Connect the wires to the corresponding terminals on the new capacitor.