- Using 20-digit TOKEN code as transmission media, adopting digital keypad for prepayment data transmission, safe and reliable;
- Supporting configurable prepayment or post-payment modes;
- Active (reactive) power energy metering, with the reverse power energy metered as forward power energy.
- Provided with attachable infrared local communication functions, adopting IEC62056-21 (namely IEC61107) communication standards (C mode);
- Prepaid energy charge, pay before use, balanced energy threshold alarm and switch out at exhaustion (prepayment status) ;
- Provided with load control, over limit alarm, tripping; ultra-phase unbalance limit alarm;
- Alarm and tripping of cover opening, electric anti-tamper;
- Provided with high voltage and low voltage tripping protection functions (optional);
- Power-on switch-in (if permitted), power-down switch-out (configurable);
- Indoor unit UIU function: PLC, MBUS interfaces optional;
- Remote AMR communication function: RS485, PLC, RF, GPRS interfaces optional;
- Installation commissioning and operation functions: convenient for installation and commissioning, safe and reliable operation;
- Measurement of voltage, current, power, phase angle and grid frequency of respective phases;
- LCD large size screen English display, with backlight, clear and intuitive;
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