XPARTCO
45/5 - 370 or 440V, 450V Air Conditioner ROUND DUAL RUN CAPACITOR | 45+5 MFD 450 Volts
45/5 - 370 or 440V, 450V Air Conditioner ROUND DUAL RUN CAPACITOR | 45+5 MFD 450 Volts
Couldn't load pickup availability
XPARTCO XPDC45X5-450R Dual Run Capacitor — 45/5 MFD, 450VAC, Round
Three-terminal CBB65 dual motor-run capacitor for compatible central air conditioners, heat pumps, and condensing units.
Product Overview
The XPARTCO XPDC45X5-450R Dual Run Capacitor combines two motor-run capacitors in one round aluminum can: a 45 MFD section for the compressor and a 5 MFD section for the condenser fan motor.
Rated at 450VAC, this capacitor provides the phase shift and continuous electrical support required by compatible single-phase compressor and fan motors during startup and normal operation. It uses three labeled terminal groups: C (Common), HERM/COMP (Compressor), and FAN.
Quick Answer
XPDC45X5-450R is a 45/5 MFD, 450VAC, round CBB65 dual run capacitor. It is a universal replacement for equipment that requires the same 45 MFD compressor rating and 5 MFD fan rating, provided the voltage, frequency, duty type, terminal configuration, environmental rating, and physical fit are also compatible.
Common Problems This Part May Fix
- Outdoor unit hums but the compressor will not start
- Condenser fan will not spin or starts only after being pushed
- Fan runs slowly or intermittently
- System trips the breaker shortly after startup
- Air conditioner blows warm air because the compressor is not running
- Repeated contactor clicking during attempted startup
- Capacitor can is bulged, domed, leaking, or visibly damaged
- Measured capacitance is outside the equipment requirement
Replaces and Cross-References
This is a universal specification-based component. Match the original capacitor's complete electrical and physical specifications rather than relying on appearance or brand alone.
Compatibility
Compatible with central air conditioners, heat pumps, condensing units, package units, and other HVAC equipment that specifies all of the following:
- 45 MFD compressor capacitance
- 5 MFD condenser fan capacitance
- 450VAC or lower original capacitor voltage rating
- Dual motor-run capacitor with C, HERM/COMP, and FAN terminal groups
- Round can shape and suitable mounting dimensions
- Compatible frequency, duty class, temperature range, and safety requirements
Exact capacitance required: Do not substitute a different compressor or fan MFD value. A 450VAC capacitor can replace a 370VAC or 440VAC motor-run capacitor only when the capacitance and all other required specifications match. Voltage rating alone does not establish compatibility.
Key Features
- Universal XPARTCO dual motor-run capacitor
- 45 MFD compressor section
- 5 MFD condenser fan section
- 450VAC rated voltage
- Round aluminum CBB65 can
- Three terminal groups: C, HERM/COMP, and FAN
- 1/4-inch quick-connect terminals
- 50/60 Hz motor-run service
- Metallized polypropylene film construction
Product Specifications
| XPARTCO Part Number | XPDC45X5-450R |
| Brand | XPARTCO |
| Capacitor Type | Dual Motor Run Capacitor |
| Series | CBB65 |
| Compressor Capacitance | 45 MFD / µF |
| Fan Capacitance | 5 MFD / µF |
| Voltage Rating | 450VAC |
| Frequency | 50/60 Hz |
| Tolerance | ±5% |
| Shape | Round |
| Terminals | 3 Groups — C, HERM/COMP, FAN |
| Terminal Style | 1/4-Inch Quick Connect |
| Construction | Metallized Polypropylene Film |
| Operating Temperature | -40°C to 70°C (-40°F to 158°F) |
| Listed Product Markings | CQC, VDE, TÜV, CL; GB/T 3667 and EN 60252 |
| Condition | New — Universal Replacement Part |
| Quantity | 1 Dual Run Capacitor |
Installation and Safety Notes
- Turn off power at the equipment disconnect and the circuit breaker.
- Follow lockout/tagout procedures where applicable and verify absence of voltage with an appropriate meter.
- Use a properly rated capacitor discharge tool and follow the equipment manufacturer's service procedure.
- Confirm the old capacitor is 45/5 MFD and verify all remaining specifications before installation.
- Photograph and label every wire before disconnecting the original capacitor.
- Reconnect each wire to the matching terminal: C to Common, HERM/COMP to the compressor circuit, and FAN to the fan circuit.
- Secure the capacitor in the approved mounting position and confirm that all terminals are tight and insulated.
- Fully close the electrical compartment before restoring power.
Danger: Capacitors can retain a hazardous electrical charge after power is disconnected. HVAC electrical service should be performed by a trained technician. Never touch capacitor terminals with bare hands, and do not use an improvised discharge method.
Frequently Asked Questions
Can this replace a 45/5 MFD 370VAC capacitor?
Yes, when the original is also a compatible dual motor-run capacitor and all specifications other than voltage match. A 450VAC rating is equal to or higher than 370VAC, but capacitance, frequency, duty, terminals, environmental rating, and physical fit must still be verified.
Can this replace a 40/5 or 45/7.5 capacitor?
No. Both capacitance values must match the original exactly unless the equipment manufacturer provides a different approved specification.
Does round versus oval matter?
The shape does not change the electrical rating, but it matters for secure mounting, terminal clearance, and physical fit inside the equipment compartment.
Is this a Genuine OEM capacitor?
No. This is a universal XPARTCO replacement capacitor identified by its electrical and physical specifications rather than a single HVAC manufacturer's OEM part number.
Shop With Confidence
Verify the original capacitor's compressor MFD, fan MFD, voltage, frequency, duty type, terminal arrangement, temperature rating, and physical size before ordering. Our support team can help compare XPDC45X5-450R with the capacitor required by your equipment.
Share
