CBB60 18+7uf 500V S0 C Mounting Caliber 50

This CBB60 18+7μf 500V is a high-performance dual-section AC running capacitor. It integrates two independent capacitance values ​​(18 microfarads and 7 microfarads), specifically designed to assist motor starting and maintain stable current phase during operation. Thanks to its high-voltage resistant design and sealed construction, it plays a crucial role in improving motor efficiency, reducing noise, and extending the lifespan of electrical appliances.

The following are the core technical characteristics of this capacitor:

Core Parameters and Specifications:
Dual Capacitance Design (18+7μf): This is a typical combination capacitor, capable of providing compensation for different windings of a motor or two independent motors simultaneously. The 18μf is typically responsible for the main pump or heavy-load section, while the 7μf corresponds to the auxiliary fan or light-load equipment.

Voltage Rating (500V):  Possesses extremely high voltage redundancy. Compared to common 450V specifications, it performs more robustly under conditions of severe voltage fluctuations, effectively preventing high-voltage breakdown.

Physical Interface (Mounting Caliber 50): The nominal mounting hole distance or bracket diameter is 50mm, ensuring physical compatibility within compact motor housings.

Electrical Performance and Protection Mechanisms:
Self-healing Property: When a minor dielectric breakdown occurs inside the capacitor, the metallized coating at the breakdown point quickly evaporates and disappears, automatically restoring the insulation state. This means it will not be rendered unusable due to a single weak point.

High Insulation and Low Loss: Using metallized polypropylene film as the dielectric, the internal energy loss is extremely low. This not only reduces heat generation but also ensures high efficiency of charge conversion during long-term power-on operation.

Surge and Overload Capability: Able to withstand instantaneous high current surges, especially during frequent motor start-stop cycles, effectively buffering current peaks and protecting the main board and windings.

Structural Design and Environmental Adaptability:
Epoxy Resin Full Sealing (S0 Grade): The interior is filled with epoxy resin, achieving complete physical isolation. This structure provides excellent moisture resistance and vibration resistance, ensuring stable operation even in humid or slightly corrosive air environments (such as pump rooms or kitchens).

Safety Standard: The S0 level represents its basic explosion-proof and protection logic, ensuring that the enclosure maintains basic physical integrity in the event of extreme failure.

Industry Application Scenarios:
This capacitor is the "power auxiliary center" for various types of induction AC motors. It is commonly found in:

Fluid Equipment: Various household and industrial electric-driven water pumps.

Environmental Control: Powerful air coolers, range hoods, industrial fans, and various air circulation systems.

Power Compensation: Meeting the starting requirements for equipment to smoothly transition from a stationary state to high-speed operation.