25.0uf CBB61 Starting Capacitors

Types and Functions of CBB61 starting capacitors 

There are two main types of CBB61 starting capacitors  : Starting  capacitors and Running capacitors.

1. Starting capacitors are used to provide the initial boost of energy needed to start the motor.

Starting capacitors  are designed to have a high capacitance value and are only used for a short period of time during motor startup. Once the motor is running, the starting capacitor is disconnected from the circuit.

2. Running capacitors, on the other hand, are used to maintain the motor’s operation once it has started. They have a lower capacitance value than starting capacitors and are designed to remain connected to the circuit throughout the motor’s operation. Running capacitors help improve the motor’s efficiency and power factor, which reduces energy consumption and improves performance.

Metalized polypropylene capacitors Features

1. Very low loss.

2. The medium absorption coefficient is low.

3. High insulation resistance.

4. Good frequency characteristics.

5. Good self-healing properties.

6. Good stability.

7. Metalized polypropylene capacitors have a wide capacity range, ranging from thousands of picofarads to tens of microfarads.

8. Good temperature resistance and high insulation resistance.

9. Metallized polypropylene film capacitors have good self-healing ability.

10. The loss tangent value is small, and the high-frequency characteristics are good.

11. Small size, reliable operation.

12. Non-inductive construction
13. Self-healing property
14. High current endurability up to 20A and special termination for high current

Application of metalized polypropylene capacitors:

1.Applicable for air conditioners, ventilator, electric fan, AC one-phase motors, fluorescent lamps,

    mercury lamps and transformer etc. 
2. Used for starting, running and power factor correcting purpose.

Specifications of metalized polypropylene capacitors:

Dielectric: Metallized polypropylene film

Electrodes: Vacuum evaporated metal

Coating: Encapsulated in engineering plastic sealed case with epoxy resin meeting the requirement.

Leads: Radial leads of tinned wire / insulation flexible wire or tabs

Reference standard: GB/T 3667-1997 UL810 IEC 60252-1

Climatic catalogue: 25/70/21

Capacitance versus rated voltage:

1.0μF~50μF 0~500VAC （UL）

1.0uF~13.0uF 250VAC (CQC VDE)、

1.0uF~6.0uF 400VAC (CQC)

1.0uF~6.0uF 500VAC (CQC VDE)

Capacitance tolerance: M ±20% K ± 10% J ± 5%

Dissipation factor (tangent of loss): ≤％ ℃ 0.2 (at 20 , 1KHz)

Voltage-proof:

T-T 2.0*UR(10S) Unit:VDC

T-C 2*UR+1000V(60S) Unit:VDC

Insulation resistance:

T-T C＜ 0.47 μF  ≥ 2000MΩ

C≥ 0.47 μF  ≥ 1000S

T-C ≥ 2000MΩ (1 minute at 20 and RH 65%)

ENDURANCE AFTER TESTING:

600hours with 125% of rated voltage at 70 ℃。

70℃， 125%。

ΔC/C≤ 5%； IR ≥ 50% of the specified value