Single-phase electric energy meter UEM4L

three-phaseDIN railRS-485

Product overview
The UEM2L-A R and UEM4L-A R are high-performance multi-channel energy meters in a compact 4‑DIN module housing, certified for operation up to 70 °C. The devices provide simultaneous measurement of two (UEM2L-A R) or four (UEM4L-A R) independent three-phase loads and are MID-certified for billing (active energy EN 50470-3 class B). They are designed to work with EMCT series three-phase CT blocks; RJ12 cables connect CT blocks to the meter. The COM port (RS485 Modbus RTU) enables remote reading and configuration. A dedicated remote management application is available.

Accessories / compatible CT blocks

• EMCT-160 — rated value 160 A
• EMCT-250 — rated value 250 A
• EMCT-630 — rated value 630 A
• EMCT-1000 — rated value 1000 A
• RJ12 connection cables — available lengths: 1 m, 3 m, 5 m, 10 m

Variants
NAME | DESCRIPTION | EAN
UEM4L-A R | Multi-channel energy meter with up to 4 channels, MID-certified, RS485 Modbus RTU communication for EMCT CT blocks (CTs to be ordered separately) | 8058757521028
UEM2L-A R | Multi-channel energy meter with up to 2 channels, MID-certified, RS485 Modbus RTU communication for EMCT CT blocks (CTs to be ordered separately) | 8058757521011
EMCT-160 | CT block for three-phase system, diameter 13.5 mm, size 71x75x32.8 mm, pitch 24.8 mm, rated value 160 A, suitable for UEM2L-A/UEM4L-A | 8058757521059
EMCT-250 | CT block for three-phase system, diameter 21 mm, size 78x105x32.8 mm, pitch 35 mm, rated value 250 A, suitable for UEM2L-A/UEM4L-A | 8058757521066
EMCT-630 | CT block for three-phase system, diameter 31 mm, size 92x135x32.8 mm, pitch 45 mm, rated value 630 A, suitable for UEM2L-A/UEM4L-A | 8058757521073
EMCT-1000 | CT block for three-phase system, diameter 41 mm, size 106x165x32.8 mm, pitch 55 mm, rated value 1000 A, suitable for UEM2L-A/UEM4L-A | 8058757521080
RJ12 1 m | RJ12 cable for quick connection to UEM2L-A R/UEM4L-A R with EMCT TA module, 1 m long | 8058757521097
RJ12 3 m | RJ12 cable for quick connection to UEM2L-A R/UEM4L-A R with EMCT TA module, 3 m long | 8058757521103
RJ12 5 m | RJ12 cable for quick connection to UEM2L-A R/UEM4L-A R with EMCT TA module, 5 m long | 8058757521110
RJ12 10 m | RJ12 cable for quick connection to UEM2L-A R/UEM4L-A R with EMCT TA module, 10 m long | 8058757521134

Documentation

• Catalogue
• Datasheet
• Instruction manual
• Modbus protocol user manual

Technical specifications

• Power supply: powered from the voltage circuit; range: nominal voltage ±20%.
• Wiring modes:
  • 3 ph, 4 wires (3 currents)
  • 3 ph, 3 wires (2 currents)
  • 1 ph, 2 wires (1 current)
• Voltage & Frequency: nominal 3×230/400 V, 50/60 Hz.
• Measurement capability: simultaneous measurement of two or four independent three-phase loads (depending on model).
• Current (CT blocks):
  • 160 A: starting current (Ist) 0.24 A; maximum current (Imax) 160 A
  • 250 A: Ist 0.4 A; Imax 250 A
  • 630 A: Ist 1 A; Imax 630 A
  • 1000 A: Ist 1.6 A; Imax 1000 A
• Accuracy: active energy class B in compliance with EN 50470-3; reactive energy class 2 in compliance with EN 62053-23.
• Communication: RS485 Modbus RTU; configurable baud rate range 2.4–38.4 kbps.
• Environmental conditions: operating temperature -40 °C to +70 °C; storage temperature -40 °C to +75 °C.
• Protection degree: IP51 (front panel) / IP20 (terminals).
• Housing: compact 4-DIN module format; certified for operation up to 70 °C.
• Compliance & certification: MID certification for billing; active energy compliant with EN 50470-3 class B (MID).
• Connectivity / accessories: designed to work with EMCT CT blocks; RJ12 connection cable for CT-to-meter connection; COM port for remote station management over RS485; dedicated application available for remote management.