TECHNICAL SPECIFICATIONS
Page 64 of 67
TECHNICAL SPECIFICATIONS
Auxiliary Power Supply
AC /DC Power Supply:
Standard voltage version: 85 - 250 V (for 110V or 220V AC or DC)
Low voltage version: 19 - 60 V (for 24V or 48V AC or DC)
Frequency: DC, 45 to 65 Hz.
Power consumption: Less than 20 VA
Phase Current Inputs (three current)
Method : True RMS, sample time 0.5 ms.
Range: 0.05 to 12 * phase "C/T" Primary amps setting.
Full scale: 12 * phase "C/T" Primary amps setting.
Accuracy: ± 1.5% , for 0.9 to 1.5 * "C/T" Primary amps setting.
± 5% above 1.5 * "C/T" Primary
± (3% + 0.02 * "C/T" Primary) below 0.9 * "C/T" Primary
Power consumption: ≤ 0.1 VA per 1 A at 1 A. input, (Input impedance ≤ 100 mΩ)
≤ 1.0 VA per 5 A at 5 A. input, (Input impedance ≤ 20 mΩ)
Ground Fault Current Inputs (one current)
Method : True RMS, sample time 0.5 ms.
Range: 0.05 to 1.0 * G/F "C/T" Primary amps setting.
Full scale: 1.0 * G/F "C/T" Primary amps setting.
Accuracy: ± 3% of full scale.
Power consumption: ≤ 0.1 VA per 1 A at 1 A. input, (Input impedance ≤ 100 mΩ)
≤ 0.5 VA per 5 A at 5 A. input, (Input impedance ≤ 20 mΩ)
Line Voltage Inputs (three voltages, with or without neutral)
Method : True RMS, sample 0.5 ms.
Power consumption: ≤ 0.2 VA
Without VT transformer:
Range: 50 - 750 volts.
Full scale: 750 volts.
Accuracy: ± 1.0% of full scale.
With VT transformer:
Range: 50 - 750 volts * (VT Primary / VT Secondary), limited to 25 KV.
Full scale: 750 volts * (VT Primary / VT Secondary), limited to 25 KV.
Accuracy: ± 1.0% of full scale.
Temperature Inputs (Ten RTDs
- three wires or Six RTDs plus Four Thermistors)
Time delay: 2 Sec.
Range: Copper 10, PT100, Ni120: 0°C - 200°C
PTC or NTC thermistor Model: 0 – 25.0 KΩ
Accuracy: ± 3% of resistance.
Max wire resistance: 25% of Sensor resistance at 10°C
Analog Inputs and Outputs:
Range: 0 – 1mA or 0-20mA (different types). 0-20mA type can be set to 0-20mA or 4-20mA.
Accuracy: 2% of Full Scale + 3% of input.
Overload Alarm and Trip Curves (both heating and cooling)
Fault time accuracy: ± 1 second up to 10 seconds.
± 1 second +/- 2% above 10 seconds.
Threshold current level: Overload Pickup ± 1.5%.
RTD Bias, Unbalance Bias.
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