Rectangular Motor Start Capacitor 4uF/450V-AC (4C)
Available in stock
| Quantity | Price per unit | You save |
|---|---|---|
| 1–2 pcs | 8,99 lei | — |
| 3–4 pcs | 8,54 lei | 5% (−0,45 lei/unit) |
| 5–10 pcs | 8,09 lei | 10% (−0,90 lei/unit) |
| 11+ pcs | 7,64 lei | 15% (−1,35 lei/unit) |
4uF/450V Motor Start Capacitor for Industrial and Household Electronics
The CBB61 4uF capacitor is an essential component for the stable starting and operation of single-phase electric motors. Used in air conditioners, water pumps, compressors, and fans, it ensures optimal starting torque and protects the motor from overloads. Its compact rectangular casing allows for easy installation in confined spaces, and the 4 terminals guarantee secure connections.
What you get with this product
- Fast and safe motor start — eliminates starting hesitation and reduces energy consumption
- Universal compatibility — works with most 220-240V single-phase motors in household and industrial equipment
- Simple installation via 4 faston terminals — quick solderless connections, replace the faulty capacitor in under 10 minutes
- High thermal and electrical resistance — metallized polypropylene dielectric, withstands temperature and voltage variations
- Compact dimensions — rectangular casing easily integrates into existing equipment connection boxes
- Certified safety — P2 SH protection and compliance with international standards for industrial use
How it works and how to install it
The capacitor creates a current phase shift necessary for starting single-phase induction motors. When connected to the mains, it accumulates electrical energy and releases it instantly to generate the initial rotational torque. Installation requires switching off the power supply, disconnecting the old capacitor, and connecting the terminals of the new capacitor according to the motor's wiring diagram — the 4 faston terminals are secured manually or with pliers, without special tools. Important: discharge any old capacitor before handling by connecting the terminals through a power resistor.
Frequently Asked Questions
How do I know if the capacitor on my motor is faulty?
Clear signs include the motor not starting or starting with difficulty, humming noise at startup, overheating, or frequent tripping of thermal protection. Testing with a multimeter in capacitance mode confirms the defect if the measured value differs by more than 10% from the nominal value.
Can I use this capacitor for any electric motor?
It is suitable for single-phase motors with a 220-240V AC supply voltage that require a 4uF start capacitor. Always check the motor label or electrical diagram — the capacitance and voltage must match the original specifications for safe operation.
What does a 5% capacitance tolerance mean?
The actual value of the capacitor can vary between 3.8uF and 4.2uF without affecting motor operation. This variation is normal in manufacturing and accepted by electric motor manufacturers.
Technical Specifications
| Model | CBB61-4C-400 |
| Capacitance | 4uF |
| Tolerance | ±5% |
| Rated Voltage | 450V AC |
| Frequency | 50-60Hz |
| Contact Type | 4 male faston terminals |
| Protection | P2 SH |
| Casing Material | Heat-resistant plastic |
| Dielectric Material | Metallized polypropylene film |
| Shape | Rectangular |
| EAN | 0781499719511 |
Warranty and Support
The product benefits from a 24-month warranty in accordance with Romanian law, covering manufacturing defects. You have the right to return the product within 30 days of receipt if it does not meet your expectations. Delivery is made via fast courier throughout Romania, with protective packaging for electronic components.
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