CBB61 6µF 250VAC Ceiling Fan Motor Start Capacitor – 2 Wire

CBB61 6µF 250VAC capacitor for ceiling fan motor starting and running. Two non-polarized lead wires, flame-retardant casing, direct replacement for AC fan motors.

Specifications

Type	CBB61 Motor Start/Run Capacitor
Capacitance	6µF (6.0µF / 6MFD) ±5%
Voltage Rating	250VAC
Lead Wires	2-wire, non-polarized
Operating Temp	-25°C to +70°C
Case Material	Flame-retardant plastic (UL 94V-0)
Dimensions	Varies by batch – measure original before ordering
Applications	Ceiling fans, wall fans, exhaust fans, AC motors

Product Description

This CBB61 6µF 250VAC capacitor is a direct replacement for ceiling fan motor start and run circuits. Rated at 6 microfarads with a 250VAC operating voltage, it features two non-polarized lead wires for simple installation — either wire connects to either terminal. The flame-retardant plastic case meets UL 94V-0 standards.

Ceiling fans often specify 6µF for optimal torque and startup performance. A failing capacitor causes the fan to hum without spinning, run at reduced speed, or fail to change speeds properly. Replacing it restores full performance and prevents unnecessary strain on the motor windings.

Compatibility

This 6µF capacitor directly replaces any unit marked:

• CBB61 6µF 250VAC
• CBB61 6.0µF 250V
• CBB61 6MFD 250VAC
• CBB61 5.5µF–6.5µF (within ±10% tolerance band)

Installation Tips

1. Turn off power at the circuit breaker and verify the fan is dead.
2. Open the fan canopy to access the capacitor.
3. Take a photo of the existing wiring before disconnecting.
4. Discharge the old capacitor by touching both wires together with insulated pliers.
5. Connect the new 6µF capacitor the same way — polarity does not matter.
6. Secure inside the housing, reassemble, restore power, and test.

Frequently Asked Questions

Q: Can I use a 5µF or 7µF instead of 6µF?

A: Within ±10% tolerance (5.4–6.6µF) is generally acceptable for ceiling fans. However, for best motor performance and lifespan, match the original capacitance as closely as possible. Using 5µF on a motor designed for 6µF may cause weaker startup torque; using 7µF may cause the motor to run warmer than intended.

Q: My original capacitor measures 4.8µF on a multimeter. Is it bad?

A: Yes. A good 6µF capacitor should read between approximately 5.4µF and 6.6µF. A reading of 4.8µF is about 20% below rated value, indicating the capacitor has degraded and should be replaced.

Q: Is this capacitor polarized?

A: No. CBB61 motor capacitors are non-polarized. Both wires are identical electrically .