What Does CBB60 Mean on a Capacitor?

What Does CBB60 Mean on a Capacitor?

If you work with motors, HVAC systems, or household appliances, you may have come across capacitors labeled CBB60.

But what exactly does CBB60 mean, and how is this type of capacitor used in practical applications?

 This article explains the meaning of CBB60, its structure, and where it is commonly applied.

Understanding the CBB60 Code

The term CBB60 is a model designation commonly used for AC motor run capacitors.

Each part of the code carries specific technical meaning:

 CBB – Indicates a metallized polypropylene film capacitor

 “CB” refers to film capacitors

 “B” specifies polypropylene as the dielectric material

 60 – Refers to the application category, typically associated with motor run capacitors used in AC circuits

Together, CBB60 identifies a capacitor designed for continuous operation in single-phase AC motor systems.

What Is a CBB60 Capacitor Used For?

 CBB60 capacitors are mainly used to support the running performance of AC motors.

They help maintain proper phase shift, improve torque stability, and ensure smooth motor operation.

Common applications include:

Water pumps

Air conditioners

Washing machines

Refrigerators

Ventilation and fan systems

These applications often require long working hours and stable electrical performance, which is why CBB60 capacitors are widely adopted.

Key Characteristics of CBB60 Capacitors

Compared with other motor capacitors, CBB60 capacitors offer several practical advantages:

Stable capacitance during continuous operation

Low dielectric loss for improved efficiency

Good insulation resistance

Reliable performance under varying load conditions

Most CBB60 capacitors use a plastic case with resin sealing, making them suitable for compact appliance and motor assemblies.

CBB60 vs Other Motor Capacitors

It is important not to confuse CBB60 with similar capacitor types:

CBB61 – Typically used for fan motors and lighter-duty applications

CBB65 – Oil-filled capacitors designed for higher-load motors and compressors

Each type serves a different purpose, and selecting the correct capacitor depends on motor load, operating environment, and duty cycle.

Why Understanding CBB60 Matters

Knowing what CBB60 means helps engineers, buyers, and maintenance personnel:

Select the correct capacitor for motor systems

Avoid mismatched replacements

Improve equipment reliability and service life

For OEM manufacturers and distributors, understanding capacitor classifications also supports better sourcing and technical communication.

Conclusion

A CBB60 capacitor is a metallized polypropylene film capacitor specifically designed for AC motor run applications.

It plays a critical role in ensuring stable motor operation across a wide range of household and industrial equipment.

Understanding this designation allows users to make informed decisions when selecting or replacing motor capacitors.