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cj19-63-21-240v chint 230vac 43a 2no + 1nc contactor for power factor correction
MPN: CJ19-63-21-240V
Why Choose the CHINT CJ19-63-21-240V Capacitor Contactor?
The CHINT CJ19-63-21-240V is a heavy-duty capacitor switching contactor specifically engineered for low-voltage reactive power compensation and automatic power factor correction systems. Designed for capacitor bank switching applications, this contactor integrates a specialised pre-charge resistor circuit that effectively suppresses capacitor inrush current during energisation, helping to protect both switching contacts and capacitors from excessive electrical stress.
As part of the advanced CHINT CJ19 capacitor contactor series, this model is manufactured in accordance with IEC/EN 60947-4-1 standards and optimised for AC-6b utilisation category applications. Its robust three-pole design, integrated auxiliary contacts and reliable switching mechanism ensure dependable long-term operation in industrial and commercial capacitor compensation panels.
With a 63 A thermal current rating, 240 V AC control coil and suitability for capacitor banks up to approximately 30 kvar at 400 V, the CJ19-63-21-240V is ideal for industrial distribution systems, APFC panels and reactive power compensation equipment requiring stable and efficient capacitor switching performance.
Key Advantages
- Specialised capacitor switching contactor for reactive power compensation systems.
- 240 V AC control coil.
- Integrated pre-charge resistor system reduces capacitor inrush current.
- Optimised for AC-6b capacitor switching duty.
- Suitable for automatic power factor correction systems.
- Reliable switching performance for industrial capacitor banks.
- Designed for demanding industrial and commercial electrical installations.
Key Features
- CHINT CJ19 capacitor contactor series.
- 63 A frame size.
- 240 V AC 50/60 Hz coil voltage.
- Three-pole capacitor switching contactor.
- Integrated surge suppression resistor circuit.
- Suitable for automatic capacitor banks.
- Auxiliary contact configuration: 2NO + 1NC.
- 35 mm or 75 mm DIN rail mounting compatibility.
- Low power consumption coil design.
- IEC/EN 60947-4-1 compliant.
Technical Specifications
- Manufacturer: CHINT
- Series: CJ19 Capacitor Switching Contactors
- Model: CJ19-63-21-240V
- Product type: Capacitor switching contactor
- Frame size: 63 AF
- Rated operational current: 43 A AC-6b
- Rated thermal current: 63 A
- Utilisation category: AC-6b
- Rated operational voltage: Up to 690 V AC
- Control coil voltage: 240 V AC 50/60 Hz
- Pole configuration: 3-pole
- Main contacts: 3NO
- Auxiliary contacts: 2NO + 1NC
- Controlled capacitor capacity: approx. 30 kvar at 400 V
- Rated insulation voltage: 690 V
- Impulse withstand voltage: 6 kV
- Mounting type: 35 mm or 75 mm DIN rail / screw mounting
- Protection rating: IP20 front protection
- Operating temperature: -5 °C to +40 °C
- Compliance standard: IEC/EN 60947-4-1
- Approximate dimensions: 150 × 79 × 155 mm
Reliable Capacitor Switching for Power Factor Correction
Capacitor contactors such as the CHINT CJ19 series are specifically designed for switching capacitor banks used in reactive power compensation systems. Unlike conventional contactors, they incorporate pre-charge resistors to limit high transient currents generated when capacitors are energised. This significantly reduces contact wear and improves system reliability.
The CJ19 range is widely used in automatic power factor correction panels and industrial electrical distribution systems where reliable capacitor switching and stable reactive power compensation are essential for improving overall power quality and reducing energy penalties.
Typical Applications
- Automatic power factor correction panels.
- Reactive power compensation systems.
- Industrial electrical distribution boards.
- Capacitor bank switching systems.
- Commercial building power management systems.
- Industrial automation and energy efficiency projects.
Frequently Asked Questions
What is the CHINT CJ19-63-21-240V used for?
This contactor is designed for switching capacitor banks in reactive power compensation and power factor correction systems.
What current rating does this contactor support?
The CJ19-63-21-240V has a rated operational current of 43 A AC-6b with a 63 A frame size.
What control voltage does this model use?
This version uses a 240 V AC 50/60 Hz coil voltage.
Why are pre-charge resistors included?
The integrated resistor circuit helps suppress capacitor inrush current, protecting both the contactor and capacitor bank during switching.
Can this contactor be DIN rail mounted?
Yes. The CJ19-63 series supports both 35 mm and 75 mm DIN rail mounting as well as screw mounting installation.
Trusted by Electrical Engineers Worldwide
CHINT CJ19 capacitor contactors are widely used in industrial and commercial power factor correction systems for reliable capacitor switching and long operational life.
| Manufacturer Part Number | CJ19-63-21-240V |
|---|---|
| Manufacturer | Chint |
| Auxillaries | 1NO/1NC |
| Amperage | 43A |
| Voltage | 240V |
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