Parameters | Accuracy | |
Voltage | ±0.5% | |
Current | ±0.5% | |
kW, kvar, kVA | ±1.0% | |
kWh | IEC 62053-21 Class 1 | |
kvarh | IEC 62053-23 Class 2 | |
PF | ±1.0% | |
Frequency | ±0.02Hz | |
THD | IEC 61000-4-7 Class B | |
Temperature | ±1°C | |
Voltage Inputs (V1, V2, V3, VN) | ||
Voltage (Un) | 277VLN/480VLL | |
Range | 40V to 1.2Un (88V to 550V for Self-Powered option) | |
Burden | <0.02VA/phase | |
Frequency | 45-65Hz | |
Current Inputs (I11, I12, I21, I22, I31, I32) | ||
SCCT Option SCCTA Option | ||
Current (In) | 40mA 2mA | |
Range | 0.15%-100% In 0.1%-120% In | |
Starting Current | 0.15% In 0.1% In | |
Burden | <0.25VA per phase <0.25VA per phase | |
External SCCTs | 100A/40mA 5A/2mA | |
200A/40mA | ||
400A/40mA | ||
800A/40mA | ||
1600A/40mA | ||
Power Supply (L+, N-, GND) | ||
Standard | 60-264VAC/DC, ±10%, 47-440Hz | |
Optional | 88V-550VAC, Self-Powered via Uca (U31) | |
Burden | <2W | |
Digital Inputs (DI1, DI2, DI3, DIC) | ||
Type | Dry contact, 12VDC internally wetted | |
Sampling | 1000Hz | |
Hysteresis | 1ms minimum | |
NTC Temperature Inputs (TC1, TC2, TC3, TC4) | ||
NTC Type | 2-Wire Thermistors (sensor not included) | |
Measurement Range | -25°C to +70°C | |
Communications | ||
RS-485 (Standard) | ||
Protocol | Modbus RTU | |
Baud Rate | 1200/2400/4800/9600/19200/38400 bps | |
RF Range | 860-935 MHz (Configurable) | |
EU863-870, RU864-870, IN865-867, US902- 928, AU915-928, AS920-923, AS923-925 | ||
RF Output Power | 19 dBm (Maximum) | |
Receiver Sensitivity | -137 dBm (Maximum) | |
Output Watts | 0.03 (Typical) | |
FCC Part 15C | Certified by TCB | |
Environmental Conditions | ||
Operating temp. | -25°C to +70°C | |
Storage Temp. | -40°C to +85°C | |
Humidity | 5% to 95% non-condensing | |
Atmospheric pressure | 70kPa to 106kPa | |
Pollution Degree | 2 | |
Mechanical Characteristics | ||
Unit Dimensions | DIN Rail | |
Shipping Weight | 36x90x65mm | |
Shipping Dimensions | IP30 |