The DTSU666‑H is a three-phase smart power sensor designed for precise monitoring of voltage, current, active and reactive power, and energy flow in PV systems. It integrates seamlessly via RS‑485 (Modbus‑RTU) with Huawei inverter systems, enables export limitation, and supports intelligent energy management – reliable, efficient, and compact. Delivery is ready within 24 hours after payment.
Technical Specifications
- Display & Monitoring: LCD display showing real-time data – voltage, current, power, frequency, and energy flow
 - Measurement Accuracy: ±0.5 % for voltage/current; ±1 % for power/energy; frequency ±0.01 Hz
 - Voltage Range: Phase voltage 176 V AC to 288 V; line voltage up to 499 V
 - Current Range: Direct measurement up to 100 A; typically supplied with 3 CT clamps (e.g., 250 A/50 mA)
 - Mounting: DIN rail (Rail DIN‑35), compact size approx. 100 × 72 × 65 mm; weight ≈ 1.5 kg including cables
 - Power Consumption: ≤ 1 W
 - Communication: RS‑485 with Modbus‑RTU; typical baud rate 9600 bps
 - Operating Range: –25 °C to +60 °C; storage –40 °C to +70 °C; humidity 5–95 % RH (non-condensing)
 
Product Details
- Model: DTSU666‑H (with 250 A CTs)
 - Product Type: Three-phase smart energy meter (Smart Power Sensor)
 - Material/Enclosure: Compact plastic housing for DIN rail mounting
 - Weight: approx. 1.5 kg (with accessories)
 - Origin: Huawei Energy – smart energy management solution
 - 
Key Benefits:
  
- High-precision measurement of energy, power, and current
 - Integrated control for export limitation and intelligent system operations
 - Compatible with Huawei storage and inverter systems (e.g., SmartGuard)
 - Low energy consumption and compact, robust design
 
 
The DTSU666‑H is a three-phase smart power sensor designed for precise monitoring of voltage, current, active and reactive power, and energy flow in PV systems. It integrates seamlessly via RS‑485 (Modbus‑RTU) with Huawei inverter systems, enables export limitation, and supports intelligent energy management – reliable, efficient, and compact. Delivery is ready within 24 hours after payment.
Technical Specifications
- Display & Monitoring: LCD display showing real-time data – voltage, current, power, frequency, and energy flow
 - Measurement Accuracy: ±0.5 % for voltage/current; ±1 % for power/energy; frequency ±0.01 Hz
 - Voltage Range: Phase voltage 176 V AC to 288 V; line voltage up to 499 V
 - Current Range: Direct measurement up to 100 A; typically supplied with 3 CT clamps (e.g., 250 A/50 mA)
 - Mounting: DIN rail (Rail DIN‑35), compact size approx. 100 × 72 × 65 mm; weight ≈ 1.5 kg including cables
 - Power Consumption: ≤ 1 W
 - Communication: RS‑485 with Modbus‑RTU; typical baud rate 9600 bps
 - Operating Range: –25 °C to +60 °C; storage –40 °C to +70 °C; humidity 5–95 % RH (non-condensing)
 
Product Details
- Model: DTSU666‑H (with 250 A CTs)
 - Product Type: Three-phase smart energy meter (Smart Power Sensor)
 - Material/Enclosure: Compact plastic housing for DIN rail mounting
 - Weight: approx. 1.5 kg (with accessories)
 - Origin: Huawei Energy – smart energy management solution
 - 
Key Benefits:
  
- High-precision measurement of energy, power, and current
 - Integrated control for export limitation and intelligent system operations
 - Compatible with Huawei storage and inverter systems (e.g., SmartGuard)
 - Low energy consumption and compact, robust design
 
 

