Three-Phase DIN Rail Meter (Transformer-Connected)
Suitable for applications including industrial parks, leased factories, universities, employee dormitories, commercial complexes, retail stores and market stalls.
DTSU2591(CT)
The three-phase CT-operated smart energy meter is a new DIN-rail-mounted smart meter developed using advanced large-scale integrated circuits and IoT technologies. It complies with GB/T 17215.211 and GB/T 17215.321 standards, supporting Class C accuracy for active energy and Class 2 accuracy for reactive energy.
It supports software-configurable three-phase three-wire (3P3W) and three-phase four-wire (3P4W) metering modes. The meter is equipped with one RS485 communication interface and can optionally support one IoT communication interface.
Voltage
Rated Voltage: 3×57.7/100V (CT) or 3×220/380V (Direct)Operating Range: 0.9Un – 1.15Un
Current
Current Rating: 3×0.015–0.075(6) A (via CT)Frequency
Measured parameter resolution: 0.01Hz (Accuracy: ±0.05Hz)Accuracy
Active Energy: Class C (0.5S)Reactive Energy: Class 2
