Single-phase electric energy meter UEM100-2

DIN railwith built-in communicationRS-485

Product Overview UEM100-2 is the new high-performance single-phase energy meter, certified for operation up to 70°C. Its compact 2-DIN module design allows easy integration into panels with limited space, ensuring accurate measurement and advanced functionality even under high current loads. It supports direct connection up to 100 A and communication via RS485 Modbus RTU. The meter provides bidirectional measurement, compliant with MID Class B (EN 50470-3), making it suitable for billing and certified energy accounting. It measures energy and key electrical parameters, which can be viewed both on the backlit LCD display and through the RS485 communication port. The device features two S0 outputs—one programmable and one fixed—supports up to four tariff management settings, and includes a metrological LED and sealable terminals for immediate reading and protection. Optional software is available for device management. - High-performance single-phase energy meter - Certified for operation up to 70°C - Compact 2-DIN module design for easy panel integration - Direct connection up to 100 A - RS485 Modbus RTU communication - Bidirectional measurement, MID Class B (EN 50470-3) compliant - Measures energy and key electrical parameters - Backlit LCD display and RS485 communication port - Two S0 outputs: one programmable, one fixed - Up to four tariff management settings - Metrological LED and sealable terminals - Optional management software Technical Specifications - Power supply: Power supplied from the voltage circuit. Range: nominal voltage ±20% - Voltage & Frequency: Nominal value: 230 V 50/60 Hz - Current: Starting current Ist: 0.04 mA; Maximum current Imax: 100 A - Accuracy: Active energy class B (EN 50470-3); Reactive energy class 2 (EN 62053-23) - Communication: RS485 Modbus RTU (2.4 – 38.4 kbps); M-Bus (600 – 9.6 kbps) - S0 outputs: Two passive optoisolated outputs (IEC 62053-31): - S01: fully programmable via display or protocol, selectable pulse weight (0.001 / 0.01 / 0.1 / 1 En/imp) - S02: fixed pulse output: 1000 imp/kWh - Tariff management: Up to 4 tariffs managed by HMI or remotely via protocol - Environmental conditions: Operating temperature: -40°C to +70°C; Storage temperature: -40°C to +75°C; Protection degree: IP51 (front panel) / IP20 (terminals) Available Documents - Datasheet (PDF) - User Manual (PDF) - Modbus Protocol User Manual (PDF)