Motor Dual Run Cap 30/5 MFD 370V Oval - Durable Motor Performance

In this review the Motor Dual Run Cap 30/5 MFD 370V Oval is evaluated for technicians and DIYers who need a compact, reliable motor capacitor for HVAC, refrigeration, and other motor-driven equipment. The bottom line: this hermetically sealed, PCB-free capacitor is best for replacing worn run capacitors when longevity and safety matter, because its aluminum case, steel cover and 1/4 in male quick-connect terminals provide a robust, service-friendly package that meets cULs recognition.

Key Features

• Hermetically sealed aluminum case: protects internal elements from moisture and contaminants to extend service life in appliances and motors.
• Dual run capacitance 30/5 MFD: offers the dual-value design needed to support both motor run and auxiliary circuits in a single compact part.
• 370VAC rating: provides the working voltage margin required for many air conditioners and refrigeration systems on 50/60 Hz mains.
• 1/4 in male quick-connect terminals: quick installation and replacement with insulated terminals that reduce risk of shorting during service.
• Protected to 10,000 AFC: offers a level of fault current protection appropriate for motor starting and running conditions in industrial and residential equipment.
• Wide temperature range: rated from -40 C to 70 C so it withstands typical ambient extremes found in utility and vehicle applications.

Who It's For

This capacitor is aimed at HVAC technicians, refrigeration service professionals, and competent DIYers who need a direct, reliable replacement for motor run circuits or a compact dual-capacitor solution where space is limited. Its oval shape and quick-connect terminals make it practical for retrofits and service calls where speed and reliability matter.

It is not intended for applications requiring nonstandard capacitance values, lower voltage ratings, or electronic control-integrated capacitors; users needing a high-end, specialized or vehicle-certified automotive capacitor should look for parts specified for that environment.

Pros & Cons

Pros

• Hermetically sealed aluminum case with steel cover improves durability and corrosion resistance in typical installations.
• Dual 30/5 MFD values combine two functions in a single, compact unit for space-constrained equipment.
• 1/4 in male quick-connect terminals with plastic insulators make installation fast and reduce accidental shorts.
• cULs recognized construction and 10,000 AFC protection add confidence for professional use.

Cons

• The oval case and specified dimensions may not fit every mounting bracket or enclosure without checking clearances first.
• Not PCB-rated for niche applications requiring electronic integration or nonstandard connector types.

Specifications

Motor Capacitor Type	Motor Dual Run Capacitor
Microfarad Rating	30/5 MFD
Capacitor Voltage	370 VAC
Frequency	60/50 Hz
Case Material	Aluminum with steel cover
Terminal Type	1/4 in male quick-connect with plastic insulators
Temperature Range	-40 C to 70 C

Our Verdict

The Motor Dual Run Cap 30/5 MFD 370V Oval is a pragmatic, value-focused capacitor for service professionals and informed DIYers who need a durable, easy-to-install replacement for HVAC and refrigeration motors. With dual capacitance in one sealed aluminum package and safety recognitions, it is a sensible buy when fit and basic electrical requirements match the installation.

Frequently Asked Questions

Is this capacitor suitable for both 50 Hz and 60 Hz systems?
Yes, it is rated for 60/50 Hz and is suitable for equipment operating on either frequency within the specified voltage and temperature limits.

How are the terminals configured for installation?
The capacitor uses 1/4 in male quick-connect terminals with plastic insulators for fast, reliable mating with standard female quick-disconnect connectors.

Does the unit meet safety standards?
It is cULs recognized and protected to 10,000 AFC, which supports safe professional installation in many HVAC and refrigeration applications.