CBB61 Motor Run and Start AC Capacitors

CBB61 is a Motor Run and Start AC Capacitors used in fans, and ventilators.

CBB61 motor run capacitors utilize low-loss metalized polypropylene film for dielectric. The CBB61 capacitors are encapsulated with flame retardant epoxy resin and housed in a self-extinguishing plastic case which allows for superior reliability and a high mechanical shock and vibration strength. The motor run capacitor is small in bulk, has low temperature rise, long life-span and excellent self-healing performance. The cbb61 capacitor is a commonly used component for starting and running various electric devices, including fans, ventilators, and exhaust fans.

CBB61 capacitors have optional terminal configuration of terminals or insulated wire leads. 

CBB61 motor run capacitors have UL approvals available. All CBB61 motor run capacitors are also RoHS compliant.

Technical Specifications

FAQ ABOUT cbb61 capacitor:

What Is the Function of CBB61 Capacitor

The cbb61 capacitor is a commonly used component for starting and running various electric devices, including fans, ventilators, and exhaust fans.

This capacitor is constructed using polypropylene film and reinforced with a thickened layer of zinc and aluminum, known as reticulation safety film. It is then enclosed in a protective casing made of burnt-prevent epoxy resin and square ABS plastic.

The cbb61 capacitor is characterized by its compact size, reliability, and safety features. It ensures a steady flow of electrical current and boasts a long operational lifespan.

What does the CBB61 capacitor do?

The capacitor is utilized to not only start but also spin the fan. Simply stated, the capacitor generates a magnetic flux (torque) that causes the fan to revolve. Ceiling fans typically employ two capacitors in parallel series.

What Happens if the Fan Capacitor Fails?

In the event of a capacitor failure, the fan will still receive electricity. However, due to a damaged start coil, it will be unable to generate sufficient torque to initiate the fan's operation. Nevertheless, it is possible to manually start the fan by giving it a gentle push, after which it should continue running. Prior to attempting this, it is advisable to listen closely to the fan for any buzzing noises.

How Do You Check the CBB61 Capacitor on a Fan

A short across the capacitor causes it to discharge fully. After the short is eliminated, it should take around 3 seconds to reach 4/5 of the supply voltage. If it’s shorter than three seconds, the cap is open. It may have a significant leakage current if it never gets close to the supply voltage.

Can a Fan Operate Without a Capacitor

Yes, it is possible to operate a ceiling fan without a capacitor by manually rotating the blades. When you manually initiate the rotation of the blades, the ceiling fan will start spinning in that direction. However, it is important to note that this manual procedure can be time-consuming and requires continuous manual intervention. To avoid this inconvenience, a capacitor is typically connected to the ceiling fan, enabling it to self-start without the need for manual assistance.

What Is the Lifespan of a Fan Capacitor

Most capacitors are designed to have a lifespan of approximately 20 years. However, there are various factors and conditions that can cause them to deteriorate earlier. If you notice that your air conditioner is cycling at a significantly faster rate than normal, it could indicate that the capacitor is either insufficient for the system's requirements, as mentioned previously, or it may be composed of problematic materials that lead to a significant reduction in its expected lifespan.

Learning Center:

CBB61 Capacitor: Understanding Its Uses and Specifications