C61
Faratronic C61 (CBB61) box-type AC motor run capacitor, 1 uF to 100 uF, 250 to 450 Vac, for fans, pumps and single-phase motors.
The C61 from Faratronic is a box-type AC motor capacitor, known in the market as the CBB61, that starts and runs single-phase motors supplied from a 50 Hz or 60 Hz mains. It uses metallized polypropylene film in a compact plastic case, so it has self-healing behaviour, stable capacitance over time and reliable operation, and it is built to the GB/T3667.1 standard that is equivalent to IEC 60252-1. The series covers roughly 1 uF to 100 uF at 250 Vac to 450 Vac, which fits fans, water pumps, small compressors and other single-phase motors where the capacitor stays in circuit for the whole operating life. A motor-run capacitor is a precision part for the motor: the wrong value reduces starting torque, raises running current and heats the winding, so the capacitance and tolerance must match the motor requirement rather than an approximate value. The compact plastic case suits a tight appliance layout, and the film construction tolerates the repetitive inrush current of a motor start. These capacitors are used in air conditioners, washing machines, pumps, fans and industrial single-phase motors. Every part BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file, and mainstream values are held in stock.
FAE Professional Review
The C61 is the compact CBB61 box capacitor that most fans and pumps use. Matching the capacitance to the motor, rather than picking the nearest value, is what keeps the torque and the winding temperature right. It is a low-risk, high-value part to keep on the shelf.
| Parameter | Value |
|---|---|
| Voltage (Vac) | 250 to 450 Vac |
| Capacitance | 1 to 100 uF |
| Frequency | 50 / 60 Hz |
| Case | Plastic box (CBB61) |
| Standard | IEC 60252-1 |
Application Circuits
Fans and water pumps
Reference circuits and application schematics for Fans and water pumps are available from our FAE team.
Washing machines
Reference circuits and application schematics for Washing machines are available from our FAE team.
Small single-phase motors
Reference circuits and application schematics for Small single-phase motors are available from our FAE team.
Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.
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Frequently Asked Questions
What is the C61 rated for?
The C61 (CBB61) covers about 1 uF to 100 uF at 250 Vac to 450 Vac for 50 or 60 Hz operation, in a compact plastic box built to IEC 60252-1.
Match the capacitance to the motor requirement.
Why does the capacitor value matter so much?
The capacitor sets the phase shift that produces the rotating field in a single-phase motor. Too little capacitance reduces starting torque and running flux; too much raises the winding current and the temperature. Both shorten motor life.
Use the value the motor maker specifies.
Is the C61 genuine and in stock?
BeiLuo supplies factory-traceable C61 capacitors through Faratronic official channels, with import declaration, certificate of origin and RoHS files on every order. Mainstream values are normally in stock.
Request a sample to validate on the bench.