NJR2-D series soft starter is based on advanced dual CPU control technology as the core, controls the thyristor module, realizes the soft start and soft stop functions of the three-phase AC asynchronous motor, and has a number of protection functions such as overload, input phase loss, output phase loss, load short circuit, starting current limit timeout, overvoltage, undervoltage, etc.
NJR2-D series is a soft starter that requires an external bypass contactor, the voltage series is 380V, the power specification is 7.5kW to 500kW, with strong load adaptability, stable and reliable operation, etc., is the traditional star-delta start, self-coupling step-down start ideal replacement products.
The product conforms to the standard: GB/T 14048.6, IEC 60947-4-2.
Technical parameters and performance
Main power supply voltage: 380V+57V
Main power frequency: 50Hz+1Hz
Applicable motors; Ordinary squirrel cage three-phase asynchronous motor
Pollution level: 3
Degree of protection: IP20
Rated insulation voltage: 660V
Rated impulse withstand voltage: 2kV
Cooling method: natural air cooling
Starting frequency: It is recommended not to exceed 10 times per hour, the heavier the load, the less the starting frequency should be;
Seismic capacity: vibration less than 0.5g;
Environmental conditions: If the altitude exceeds 1000m, it should be derated accordingly, and more than 1000m is less than
0.5% derating for every 100m increase in 3000m, and more than 3000m needs to be customized;
Relative humidity does not exceed 95% (20-65°C);
No condensation, no flammable and explosive gases, no conductive dust, good ventilation.
Soft start time: (2-60)s
Soft stop time: (0-60)s
Starting delay: (0-999)s
Interval: (0-999)s
Programming delay: (0-999)s
Starting modes: 4 types
Shutdown modes: 2
Soft Start Voltage: (30-70)%
Soft Start Current Limit Range: (50-500)%le
Soft Shutdown Current Limiting Range: (20—100)%
We will provide customers with high-quality products and satisfactory services with honest and trustworthy, convenient and fast business methods and strict management.
This article introduces CHINT/CHINT NJR2-D series soft starter products, if you are interested in CHINT/CHINT inverter, please also contact our customer service, we look forward to your call, hope our technology and service can bring you a better experience.
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