Huawei DDSU666-H 100A Single-phase Energy Sensor with LCD
Modelo: DDSU666-H- Sku: HUAWACC015
- Vendor: Huawei
Specifications
Product description
The Huawei DDSU666-H 100A single-phase sensor with LCD is an intelligent energy meter designed for residential solar installations with Huawei inverters. It provides precise measurement of electrical parameters such as voltage, current, frequency, active and reactive power, and total energy, enabling effective control of consumption and solar generation. Its RS485 communication using the Modbus-RTU protocol ensures direct integration with Huawei SUN2000-L1 single-phase inverters and platforms such as FusionSolar.
Main features
- Single-phase 1P2W measurement with 100 A current transformer included
- Multifunction LCD display with local navigation
- Class 1 accuracy in current, power, and energy
- RS485 communication, Modbus-RTU protocol
- DIN rail mounting, compact dimensions
- Self-consumption ≤ 0.8 W, powered from the same grid
Advantages or benefits
- Allows feed-in control to the grid and energy balancing
- Real-time consumption monitoring via FusionSolar
- Simple installation in electrical panel with included CT transformer
- Local data accessible without internet connection
- Ideal for residential self-consumption installations
Purpose or applications
This sensor is designed for residential single-phase solar installations that require monitoring of electrical consumption, energy export and import, data visualization in the cloud or locally, and compatibility with smart systems such as FusionSolar. It is ideal for complying with zero export regulations and achieving more efficient solar system performance.
Technical specifications
| Model | DDSU666-H |
| Grid type | Single-phase 1P2W |
| Input voltage | 176–288 V AC |
| Current range | 0–100 A (with included CT) |
| Nominal frequency | 50/60 Hz |
| Voltage accuracy | ±0.5 % |
| Current/power/energy accuracy | ±1 % |
| Frequency accuracy | ±0.01 Hz |
| Self-consumption | ≤ 0.8 W |
| Mounting | 35 mm DIN rail |
| Dimensions | 100 × 36 × 65.5 mm |
| Display | Multifunction LCD |
| Communication | RS485 |
| Protocol | Modbus-RTU |
| Communication speed | 9,600 bps |
| Degree of protection | IP20 |
| Operating temperature | -25 °C to +60 °C |
| Humidity | 5–95% RH non-condensing |
| Power supply | From grid (phase) |
| Included accessories | CT 100 A/40 mA (5 m) + RS485 cable (10 m) |
Compatibilities
This product is compatible with: SUN2000-2KTL-L1, SUN2000-3KTL-L1, SUN2000-3.68KTL-L1, SUN2000-4KTL-L1, SUN2000-4.6KTL-L1, SUN2000-5KTL-L1, SUN2000-6KTL-L1, SUN2000-8K-LC0, SUN2000-10K-LC0, SUN2000-3K-LB0, SUN2000-3.68K-LB0, SUN2000-4K-LB0, SUN2000-4.6K-LB0, SUN2000-5K-LB0, SUN2000-6K-LB0.
Huawei DDSU666-H 100A single-phase sensor is a precise, efficient, and compatible solution for residential self-consumption installations seeking complete control of energy consumption and production.
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Huawei DDSU666-H 100A Single-phase Energy Sensor with LCD
