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Compliance
IEC 62053-21, GB/T 17215.321-2008 (Class 1.0 accuracy)
Rated Voltage
220V AC (50/60Hz)
Current Ranges
1.5(6)A, 5(20)A, 10(40)A, 20(80)A
Measurement
Active energy (kWh), reactive energy (kVarh), voltage, current, power, power factor, frequency
Display
Large LCD screen with 12-parameter display (voltage, current, power, etc.)
Pulse Output
Optocoupler-isolated; Width: 80ms±20ms; Constants: 800–12,800 imp/kWh (model-dependent)
Communication
RS-485: MODBUS-RTU (default) or DL/T645-1997/2007 protocols
Baud Rate: 1200/2400/4800/9600 bps (configurable)
Multi-Tariff
Supports 4 rates (Super Peak/Peak/Flat/Valley)
Configurable: 2 annual time zones + 8 daily time periods
Physical
Dimensions: 76 × 91 × 74 mm
Weight: 0.6 kg
Mounting: DIN-rail (TS35)
Environmental
Operating Temp.: -20°C to +55°C
Humidity: ≤75% (non-condensing)
IP Rating: IP51 (dust/water resistance)
Safety
Insulation: Type II
Installation: Qualified personnel only; Lead seal required for warranty
Power Consumption
Voltage line: ≤5VA/phase
Current line: <4VA/phase
