XPARTCO
XPARTCO HVAC Capacitor Contractor Pack — 18-Piece Assortment Kit (Dual + Single Run)
XPARTCO HVAC Capacitor Contractor Pack — 18-Piece Assortment Kit (Dual + Single Run)
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XPARTCO HVAC Capacitor Contractor Pack — 18-Piece Assortment Kit (Dual + Single Run)
Fourteen dual run capacitors across seven common ratings plus four single run capacitors across two ratings—all round, 450VAC units.
Product Overview
The XPARTCO HVAC Capacitor Contractor Pack combines commonly serviced dual run and single run motor-capacitor ratings into one 18-piece truck-stock assortment. It is designed for HVAC technicians, maintenance teams, and service businesses that want broad coverage without ordering individual capacitors between jobs.
Each dual run capacitor combines two capacitance sections in one round, three-terminal can: one section for the compressor and one for the condenser fan motor. The single run capacitors are round, two-terminal units used for one motor circuit, including compatible condenser fan motors, pumps, and other single-phase motor equipment.
The assortment is weighted toward 35/5, 40/5, and 45/5 MFD—frequently encountered residential service sizes—while 50/5, 60/5, 70/5, and 80/5 MFD extend coverage to larger residential and light-commercial equipment.
Quick Answer
This 18-piece assortment includes 35/5 (×2), 40/5 (×4), 45/5 (×4), 50/5 (×1), 60/5 (×1), 70/5 (×1), 80/5 (×1), single-run 5 MFD (×2), and single-run 7.5 MFD (×2). All pieces are round and rated 450VAC.
Capacitors can retain a dangerous electrical charge after power is disconnected. Installation, testing, and discharge should be performed by a qualified HVAC professional using appropriate PPE, test equipment, and a rated capacitor-discharge device.
What’s in the Kit
| Capacitor Rating | Qty | Typical Application |
|---|---|---|
| 35/5 MFD, 450VAC, Round Dual Run | 2 | Smaller residential split systems and compatible window/PTAC equipment |
| 40/5 MFD, 450VAC, Round Dual Run | 4 | Common residential systems; high-frequency service size |
| 45/5 MFD, 450VAC, Round Dual Run | 4 | Common residential systems; high-frequency service size |
| 50/5 MFD, 450VAC, Round Dual Run | 1 | Mid-size residential equipment |
| 60/5 MFD, 450VAC, Round Dual Run | 1 | Larger residential equipment |
| 70/5 MFD, 450VAC, Round Dual Run | 1 | Larger residential and light-commercial equipment |
| 80/5 MFD, 450VAC, Round Dual Run | 1 | Larger compressors and compatible light-commercial equipment |
| 5 MFD, 450VAC, Round Single Run | 2 | Compatible standalone condenser fan motors, pumps, and small single-phase motors |
| 7.5 MFD, 450VAC, Round Single Run | 2 | Compatible standalone condenser fan motors, pumps, and small single-phase motors |
Total: 18 capacitors—14 dual run capacitors across seven ratings and four single run capacitors across two ratings.
Common Problems This Kit Helps Address
- Outdoor unit hums but the compressor will not start
- Condenser fan will not start or starts slowly
- Motor needs a manual push to begin turning
- System trips a breaker during startup
- Air conditioner blows warm air because the compressor is not running
- Contactor repeatedly clicks during failed startup attempts
- Capacitor can is bulged, domed, split, or leaking
- A matching service capacitor is needed without a supply-house return trip
Key Features
- 18-piece dual and single run assortment
- Seven dual run ratings plus two single run ratings
- Extra quantities of 40/5 and 45/5 MFD
- All pieces rated 450VAC
- Round can construction
- Three-terminal dual run and two-terminal single run designs
- 1/4-inch quick-connect terminals
- Polypropylene film construction
- 50/60 Hz operation
- ±5% capacitance tolerance
Compatibility
These are universal replacement motor-run capacitors for compatible central air conditioners, heat pumps, condensing units, PTAC/window equipment, pumps, and other single-phase motor applications.
A 450VAC capacitor can replace a 370VAC or 440VAC unit only when the MFD rating, capacitor type, terminal arrangement, physical fit, frequency, tolerance, and all other required specifications match. The replacement voltage rating must meet or exceed the original rating.
MFD must match: Select the exact printed capacitance value required by the equipment. Do not intentionally substitute a different compressor-side or fan-side MFD rating. Equipment tonnage alone is not a reliable capacitor-selection method.
Kit Specifications
| Brand | XPARTCO |
| Kit Quantity | 18 Capacitors |
| Dual Run Quantity | 14 Capacitors / 7 Ratings |
| Single Run Quantity | 4 Capacitors / 2 Ratings |
| Voltage Rating | 450VAC on All Pieces |
| Shape | Round |
| Terminals | 3 on Dual Run / 2 on Single Run |
| Terminal Size | 1/4-Inch Quick Connect |
| Frequency | 50/60 Hz |
| Tolerance | ±5% |
| Construction | Polypropylene Film |
| Operating Temperature | -40°C to 70°C (-40°F to 158°F) |
| Condition | New Universal Replacement Parts |
Product Markings and Standards
| Listed Markings | CQC, VDE, TÜV, CL—as marked on supplied units |
| Listed Standards | GB/T 3667 and EN/IEC 60252—as marked or documented for supplied units |
| Capacitor Category | AC Motor Run Capacitors |
Certification marks and exact labeling can vary by production batch. Refer to the markings printed on each capacitor and the supplied product documentation.
Installation and Electrical Safety
- Have installation performed by a qualified HVAC technician.
- Shut off power at the equipment disconnect and circuit breaker, apply lockout/tagout where required, and verify absence of voltage with a properly rated meter.
- Treat every capacitor as charged until it has been discharged with an appropriate rated resistor-based discharge tool and verified safe with a meter.
- Photograph and label all wires before removal. Dual run terminals are normally marked C, FAN, and HERM/COMP.
- Match the old capacitor’s exact MFD values, capacitor type, and terminal configuration. Use an equal or higher voltage rating—never a lower voltage rating.
- Confirm the replacement fits the mounting strap and that terminals cannot contact the cabinet.
- Reconnect every wire to the corresponding labeled terminal, secure the capacitor, reinstall covers, and test operation according to the equipment service procedure.
Do not touch terminals with bare hands, do not rely on power being off as proof the capacitor is discharged, and do not install a different MFD value to make a motor start.
Frequently Asked Questions
Why are 35/5, 40/5, and 45/5 included in higher quantities?
These ratings are frequently encountered in residential service work, so the kit provides additional stock where repeat usage is most likely.
What if a job requires a rating not included in this kit?
Use the exact rating specified by the equipment. Less common values such as 25/5, 30/5, or 55/5 MFD must be purchased separately and should never be replaced with a different MFD value from this kit.
Can a 450VAC capacitor replace a 370VAC or 440VAC capacitor?
Yes, provided 450VAC meets or exceeds the original voltage rating and the MFD value, capacitor type, terminal arrangement, physical dimensions, frequency, and other required specifications match.
Does the MFD rating need to match exactly?
Yes. Choose the capacitor whose printed MFD rating matches the original equipment requirement. The product’s manufacturing tolerance is not permission to select a different nominal rating.
Is this a Genuine OEM kit?
No. This is an XPARTCO universal aftermarket replacement assortment selected by electrical rating and application, not a brand-specific OEM kit.
Shop With Confidence
XPARTCO supplies genuine OEM and high-quality replacement components for appliance and HVAC service. Confirm the required MFD rating and equipment specifications before installation. Compatibility support is available before purchase.
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