Huawei | Smart Power Sensor | DDSU666-H (1 phase)

The Huawei Smart Power Sensor DDSU666-H is a high-precision single-phase energy meter designed for accurate monitoring and management of electrical parameters in residential and commercial solar energy systems. With a measurement accuracy of Class 1 (±1% for current, power, and energy), it ensures reliable tracking of energy consumption and generation. The device supports a wide voltage range and operates efficiently in various environmental conditions, making it suitable for diverse power distribution systems. Its RS485 communication interface with Modbus-RTU protocol allows seamless integration into energy management systems. The compact design and DIN35 rail mounting facilitate easy installation, while the LCD display provides real-time monitoring and configuration. The DDSU666-H comes with a 100 A / 40 mA current transformer and a 10-meter RS485 cable, ensuring a comprehensive solution for energy monitoring needs.

Specifications:

Model: DDSU666-H

Power Grid Type: Single-phase, 2-wire (1P2W)

Voltage Measurement Range: 176 V AC – 288 V AC

Current Measurement Range: 0 – 100 A (via included 100 A / 40 mA current transformer)

Frequency: 50/60 Hz

Measurement Accuracy:

Voltage: ±0.5%

Current / Power / Energy: ±1%

Frequency: ±0.01 Hz

Power Consumption: ≤ 0.8 W

Communication Interface:

Type: RS485

Baud Rate: 9600 bps

Protocol: Modbus-RTU

Display: LCD for real-time monitoring and configuration

Mechanical Specifications:

Dimensions (H × W × D): 100 mm × 36 mm × 65.5 mm

Mounting Type: DIN35 Rail

Weight (Including Cables): Approximately 1.2 kg

Environmental Conditions:

Operating Temperature: –25°C to +60°C

Storage Temperature: –40°C to +70°C

Operating Humidity: 5% – 95% RH (non-condensing)

Included Accessories:

1 × 100 A / 40 mA Current Transformer (CT) with 5 m cable

RS485 Cable (10 m