Fielect CBB61 Fan Start Capacitor | 3uF 450VAC Polypropylene Film Cap for AC Fans
The Fielect CBB61 fan start capacitor is a 3µF 450VAC metallized polypropylene film capacitor designed for AC fan and motor start-circuit duty. The CBB61 type covers 220V AC fans and motors from 10" to 15" diameter — small negative-pressure fans, condenser cooling fans, range hood fans, ventilator fans, water pumps, and similar single-phase induction motors.
Construction: metallized polypropylene film, rectangular case at 38×20×30mm (L×W×H). Electrical: 3µF rated capacity, 450VAC rated voltage, ±5% tolerance. Low high-frequency loss and low inherent temperature rise — characteristics that matter on continuous-duty fan motors.
Where the CBB61 Fan Capacitor Fits
10-15" AC fan replacement — fan won't start, hums, or runs slow due to failed capacitor.
Range hood / kitchen ventilator motor cap.
Condenser / cooling tower fans in HVAC systems.
Water pump / small AC motor start-circuit replacement.
CBB61 3µF 450VAC Capacitor Specifications
Feature
Specification
Product Model
CBB61
Rated Voltage
450VAC
Rated Capacity
3µF
Tolerance
±5%
Material
Metallized Polypropylene Film
Shape
Rectangular
Size
38×20×30mm (L×W×H)
Compatible Fans
10"-15" 220V AC fans and motors
FAQ — CBB61 3µF 450VAC Fan Capacitor
Q: My fan hums but won't spin — is the capacitor failed? A: That's the classic signature of a failed fan-start cap. The capacitor provides the phase shift needed to start a single-phase induction motor; without it, the motor produces torque only when manually nudged. Replace the cap and the fan starts normally.
Q: 3µF vs 4µF vs 5µF — which one do I need? A: Match the original cap's rated capacity from the silk mark on the failed unit. Different fan sizes use different capacitance — wrong value either fails to start the motor (too low) or burns the windings (too high).
Q: How to install safely? A: Disconnect mains power first. Discharge the old capacitor by shorting its terminals with an insulated screwdriver. Note wire polarity (CBB61 is non-polarized but motor circuit may have specific terminal assignments). Install fresh cap, secure mechanically, reconnect.
Sourcing Fielect CBB61 capacitors in volume? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.
📦 Shipping & Customs⌄
🇺🇸🇪🇺 USA & European Union (DDP): Orders are delivered DDP. All customs duties, import taxes, and fees are included — no additional charges on delivery.
🌍 Rest of world: Orders ship from China. Depending on your country, local customs authorities may apply import duties or taxes.
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