Haier Smart Meter, 3-phase (current transformer-less) for E-Tower HV

The Haier DTSU666 (MPN: HIMT-00-3P) is a precise 3-phase electricity meter designed for self-consumption monitoring, grid export limitation, and smart energy optimization. It is certified according to EN 50470-1/-3 MID Class B / 1.0 and reliably measures voltage, current, power, frequency, power factor, and energy flows in both directions. Thanks to the RS485 Modbus-RTU interface, the meter can be easily integrated into building and energy management systems. Mounting on a DIN rail is quick and easy, and the IP20 housing provides reliable protection. A backlit LCD display and an LED pulse indicator ensure easy reading. With an operating range of 3×220/380V to 3×240/415V and 0.25–80A, the DTSU666 offers high measurement accuracy and low power consumption, making it ideal for sub-metering applications and solar monitoring.

Your benefits with the DTSU666:

• Mounting: Quick installation on a DIN rail
• Measurement accuracy: High precision (Class 1) for consumption and yield values
• Energy efficiency: ≤ 2W / 10VA
• Communication: RS485 (Modbus-RTU) for easy integration into energy management
• Application: Ideal for self-consumption monitoring and grid export limitation
• Safety: Fully enclosed, fuse-free design for high operational safety
• Compatibility: Works with the E-Tower system
• Manufacturer's product warranty: 2 years; you can find more information here

Technical Specifications:

• Connection type: 3P4W
• Rated voltage: 3×220/380V / 3×240/415V
• Frequency: 50/60 Hz
• Measuring current range: 0.25–5(80) A
• Measurement accuracy: Class B / 1.0 (MID-certified)
• Power consumption: ≤ 2W / 10VA
• Communication: RS485 interface, Modbus RTU protocol
• Operating temperature range: −25 °C to +55 °C
• Relative humidity: ≤ 95% relative humidity (non-condensing)
• Protection class: IP20
• Dimensions (H × W × D): 100 × 72 × 65.5 mm
• Weight: approx. 0.33 kg

Included in delivery:
1× Haier Smart Meter, 3-phase (CT-less) for E-Tower HV