Modbus RTU (Energy, 1T, direct)

The module MR-SM3 Modbus RTU is a smart meter component for building automation. Current, voltage, power and many other values can be captured by three 230 Volt current circuits. In addition, the device provides monitoring functions of for example asymmetry, phase failure, phase sequence, overvoltage and undervoltage. These values can be queried via a Modbus-Master.
Modbus RTU, RS485 (two-wire bus), Supply voltage 20 V to 28 V AC/DC. Connection with screw type terminal blocks.

MR-SM3 Modbus RTU


Category Meter, Energy
Manufacturer METZ Connect
Bus Modbus RTU
Type Direct measuring
System 4-conductor
Voltage (U) 3x 184 to 265 V
Frequency 50 Hz / 60 Hz
Current (I) 16 A
Tariff 1 tariff
Precision (active) 1%
Apparant ohmic resistance 1,2 VA (on DC)
Temperature -5 ... +55°C
Transmission rate 1200 to 115200 baud