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378-454 uF MFD 110-125 VAC Round Motor Start Capacitor - Fits Single-Phase Motors, Gear Motors
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378-454 uF/MFD 110-125 VAC Volt Round Motor Start Capacitor
Key Features
- Capacitance: 378-454 µF (Microfarad)
- Voltage Rating: 110-125 Volts AC
- Frequency: 50/60 Hz
- Tolerance: +20% / -0%
- Operating Temperature Range: -40°C to +65°C
- Shape: Round
- Case Material: High-grade phenolic resin
- Dielectric Fluid: Contains no Polychlorinated Biphenyls (PCBs)
Replaces / Cross-Reference Part Numbers
This capacitor is a universal replacement for start capacitors with matching specifications. Verify the capacitance (µF) and voltage (VAC) ratings of your original part before ordering. May replace parts labeled:
- CD60
- SC0029
- 1023
Compatibility & Fitment
Designed for intermittent duty in AC single-phase motor starting circuits. Common applications include:
- HVAC units (condensers, air conditioners, heat pumps)
- Air compressors
- Water pumps and well pumps
- Various electric motors requiring a start capacitor
When to Replace
A failing start capacitor can cause motor issues. Consider replacement if you observe the following symptoms:
- Motor hums but does not start or turn over
- Motor starts slowly or struggles to reach operating speed
- Start capacitor shows physical damage such as bulging, cracking, or leaking fluid
- Capacitance measures outside of the component's rated tolerance range when tested with a multimeter
Installation Tips
- Disconnect all electrical power to the unit before beginning installation.
- Safely discharge the existing capacitor by shorting the terminals with an insulated screwdriver.
- Confirm the µF (MFD) and VAC ratings of the new capacitor match the original component's specifications.
- Ensure all electrical connections are clean and secure.