DDS720 series is our latest high-performance single-phase electric meter.
This product supports both single-phase two-wire and single-phase three-wire wiring methods, fully complying with IEC international standards. Designed as a postpaid metering solution specifically for residential users, DDS720 not only offers flexible tariff pricing functions but also incorporates multiple anti-tampering technologies to ensure accurate and reliable metering.
Functions
- Core Features
- Bidirectional Metering (Supports energy import/export measurement)
- Tamper Detection (Physical/electronic tamper-proof design)
- Multi-Tariff
Energy Meters and Tariffs Billing (Time-of-use & tiered pricing supported) - Real-Time Clock (RTC with battery backup)
Communication Interfaces - Dual-Mode Communication: Infrared port (standard) + RS485 (optional)
- Compliant with DLMS / COSEM international standard protocol
Display System - Display SystemLong-Life LCD Screen (Visibility maintained during power outage)
- Programmable Display (Auto-scrolling parameters supported)
- Tamper-Resistant Enclosure (Screw-sealed + Ultrasonic welding technology)
| Item | Parameter |
|---|---|
| Nominal Voltage (Un) | 1P2W 110 V, 120 V, 220 V, 230 V, 240 V 1P3W 110 / 220 V, 120 / 240 V |
| Voltage Range for Operation | 0.7 Un … 1.3 Un |
| Nominal Frequency | 50 / 60 Hz ± 5% |
| Nominal Current | 5 A |
| Maximum Current | 60 A, 80 A, 100 A |
| Starting Current | 0.4% In |
| Voltage Circuit Power Consumption | < 2 W, 10 VA |
| Current Circuit Power Consumption | ≤ 4 VA |
| Display | LCD |
| Meter Constant | 1000 imp / kWh |
| Operating Temperature | – 25 ℃ … 70 ℃ |
| Storage Temperature | – 40 ℃ … 70 ℃ |
| Humidity | ≤ 95% |
| Accuracy Class | Active: 1.0 |
| Ingress Protection | IP54 |
| Communication Protocol | IR / RS485 |
| Dimensions (mm) | 133.8 (L) × 103.9 (W) × 52.9 (H) |
| Weight | 350 g |
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Title: DDS720__EN__V1.3__20251212
file size: 444.07 KB
published: 12 Dec, 2025
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