Three-phase DIN-rail meter (external CT)

It can be used for energy monitoring in a wide range of applications, including PV energy management, smart buildings and industrial equipment.

LHE34C

The LHE34C is a three-phase DIN-rail energy meter with external current transformers (CTs). It provides real-time measurement of electrical parameters including voltage, current, active power, reactive power, frequency and power factor. Through its RS485 interface, it provides power monitoring data to inverter equipment for fast-response control. It supports standard 35 mm DIN-rail mounting and features a compact size and easy installation.

Voltage

Nominal voltage: 3 x 120 / 208 V; 3 x 127 / 220 V; 3 x 230 / 400 V; 3 x 240 / 415 V; 3 x 254 / 440 V
Operating voltage range: 70% Un – 130% Un

Current

10 A / 5 mA; 120 A / 48 mA; 250 A / 50 mA (Supports two three-phase loops)

Frequency

50 / 60 Hz

Accuracy

Active energy: Class 1
Reactive energy: Class 2

Communication Port

RS485 / Modbus-RTU

Certification

CE, MID, RoHS

Key Features

External Open-Type CT

Flexible wiring and easy installation.

Communication Function

RS485 communication supports up to 115200 baud rate.

50 ms Fast Refresh

Real-time electrical data refresh in as fast as 50 ms.

Module Expansion Interface

12 V / 2.5 W power supply supports Bluetooth, Wi-Fi and other wireless modules.

Connection Diagram

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