CBB61 10UF 450V Fan Starting Capacitor

CBB61 10UF 450V Fan Starting Capacitor provides the essential phase-shift required to start and run AC fractional horsepower motors efficiently. This metallized polypropylene film capacitor features high insulation resistance and excellent self-healing properties, which ensures a long service life even under demanding electrical conditions. Furthermore, the rugged plastic casing protects the internal components from moisture and environmental vibration. Consequently, you can rely on this component to restore full torque and speed to sluggish fan motors. Therefore, replacing a weakened capacitor with this high-quality 10μF unit serves as a cost-effective solution for repairing household and industrial ventilation systems.

Key Features:

• High Reliability: The use of premium metallized polypropylene film guarantees stable performance and a high degree of electrical safety.
• Self-Healing Technology: This internal mechanism automatically isolates any dielectric breakdown, preventing catastrophic failure and extending the capacitor’s operational life.
• Flame Retardant Shell: The rectangular plastic case utilizes flame-retardant epoxy resin filling, meeting strict safety standards for domestic appliances.
• Low Dissipation Factor: Features extremely low loss at high frequencies, which minimizes internal heat generation during continuous operation.
• Broad Compatibility: Works seamlessly with most 50/60Hz AC motor systems requiring a 10μF capacitance rating.

Technical Specifications:

• Capacitance: 10 μF
• Tolerance: ±5%
• Rated Voltage: 450 V_AC
• Operating Frequency: 50/60 Hz
• Climate Category: 40/70/21 or 40/85/21
• Insulation Resistance: ≥ 3000 Ω·s (at 20°C, 100 V_DC)
• Dissipation Factor: tan δ ≤ 0.002 (at 100 Hz)

Mechanical Specifications:

• Dielectric Material: Metallized Polypropylene Film
• Case Material: PBT Plastic (UL 94 V-0 Rated)
• Terminal Type: Two-wire leads or Quick-connect solder tabs (varies by batch)
• Encapsulation: Epoxy Resin Seal

Dimensions:

• Length: ≈ 47 mm
• Width: ≈ 20 mm
• Height: ≈ 34 mm
• Lead Length: ≈ 100 mm to 150 mm

Pinout and Wiring:

• Non-Polarized Design: However, users should note that these capacitors are non-polar, meaning you can connect either wire to either terminal of the motor circuit.
• Wiring Connection: Connect the capacitor in series with the motor’s start winding to create the necessary phase displacement for rotation.
• Safety Note: Always discharge the capacitor safely before handling, as it may retain a significant electrical charge even after you disconnect the power.

Datasheet Reference:

• Download CBB61 Series Motor Run Capacitor Datasheet

Commonly Used in:

• Ceiling Fans: Restoring original start-up torque and operational speed to household fans.
• Exhaust Systems: Powering industrial ventilation fans and kitchen range hoods.
• Small Pumps: Driving low-power water pumps that utilize single-phase AC induction motors.

Applications:

• Motor Starting: Providing the high initial current needed to overcome rotor inertia in single-phase motors.
• Phase Shifting: Creating the auxiliary magnetic field required for the continuous rotation of induction motors.
• Voltage Stabilization: Helping to maintain a consistent voltage profile across the motor windings during load fluctuations.

Equivalent Models:

• CBB61 10uF 400V: A suitable alternative if the system voltage does not exceed 400V, however, the 450V version offers a better safety margin.
• Generic 10MFD 450VAC Fan Capacitor: Many generic rectangular capacitors with matching capacitance and voltage ratings serve as direct replacements.
• Dual-Run Capacitors: In some HVAC systems, a single-value CBB61 can replace the fan side of a dual-run capacitor if wired correctly.

Package Includes:

• 1 x CBB61 10UF 450V Fan Starting Capacitor