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Entelar Energy Smart Power Sensor, Three Phase, Direct connect 0-80A, Connect through current transformer 0-9999A
Entelar Energy Smart Power Sensor, Three Phase, Direct connect 0-80A, Connect through current transformer 0-9999A

Entelar Energy Smart Power Sensor, Three Phase, Direct connect 0-80A, Connect through current transformer 0-9999A

SKU DTSU666-HW 80A
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  • Description
  • Key Features
  • Technical Specifications

The DTSU666-HW 80A is a three-phase smart power sensor/meter designed for precise monitoring and control in solar PV, hybrid, or grid-tied energy systems. It supports direct current measurement up to 80 A, or higher via external current transformers (CTs), enabling flexibility in sizing. Built for accuracy and durability, it offers LCD-display feedback, low power consumption, and RS-485 communication for seamless integration.

Please note that the CTs do not come with this meter.

  • Direct measurement up to 80 A (for higher currents use external CTs)

  • Works with 3-phase supplies (3P3W or 3P4W) 

  • Class 1 accuracy for energy and ±0.5% for voltage/current, enabling reliable billing or export-limiting functionality 

  • Very low power draw (≤ 1.5 W) 

  • Compact form with DIN35 rail mount; rugged enclosure for outdoor or industrial use (-25 °C to +60 °C) 

  • RS-485 interface using Modbus-RTU protocol for compatibility with a broad range of monitoring systems

Specification Value
Model DTSU666-HW / YDS60-80 (80 A version)
Phases / Wiring 3-Phase, 3P3W or 3P4W (
Current Measurement (Direct) Up to 80 A
Current with External CTs Above 80 A via CTs with 1A or 5A secondary current 
Voltage (Line) Range 90 - 500 V AC direct; can extend to ~1000 V with external PTs 
Phase / Phase-to-Neutral Voltage 52 - 577 V AC for phase voltage 
Accuracy Voltage / Current: ± 0.5%; Power / Energy: ± 1%; Frequency: ± 0.01 Hz 
Display LCD + LED indicator 
Communication Interface RS-485, Modbus-RTU; configurable baud rates (4800 / 9600 / 19200 / 115200) 
Power Consumption ≤ 1.5 W 
Dimensions (H × W × D) 100 × 72 × 80 mm 
Weight (including cables) < 0.5 kg 
Operating Temperature -25 °C to +60 °C 
Storage Temperature -40 °C to +70 °C 
Humidity Range (Operating) 5 % to 95 % RH, non-condensing