4EFEN GmbH · Technical changes reserved· Released: March 2020
Introduction
E3-DMM-5T-2 is a multifunction, universal metering device used for overall monitoring of one- or three-phase power
supply line parameters. The analyzer enables the user to make high-precision measurements of all crucial network
parameters, such as: voltage and phase currents, phase-to-phase voltage, active power, reactive power, apparent po-
wer, power factor. In addition, the analyzer ensures full, four-quadrant metering (both imported and exported to the
network) and analyzes the distribution of harmonics of voltage and current up to 63rd harmonic inclusive.
Technical data
Meter circuit
Network 1P2W - one-phase, two-wire
3P3W – three-phase, three-wire
3P4W - three-phase, four-wire
Current sensing
Nominal current In0.25 – 5 (6) A
(real value of measured current will depend on the size of applied
current transformers)
Overload capacity (continuous) 120% In
Power consumption ≤0,5 VA/phase
Voltage measurement
Measuring range 58 – 230 V AC (phase voltage L-N)
100 – 400 V AC (phase-to-phase voltage L-L)
Frequency 45~55 Hz
Overload capacity (continuous) 120 % Un
Working conditions
Total power consumption typical ≤ 2 VA
temporary ≤ 15 VA
Working temperature -25°C~55°C
Storage temperature -40°C~70°C
Relative humidity 0~95% (without condensation of steam and aggressive gases)
Pollution class 2
Enclosure flammability UL94-V0
Protection standard Front – IP54
Rear – IP20
Enclosure dimensions 96 x 96 x 62 mm
Mounting hole dimensions 92 x 92 mm
Panel thickness 1-5 mm
Communication
Impulse outputs (not available
in standard version)
2
Port RS-485 Communication port in accordance with Modbus RTU interface.
Transmission rate: 2400/4800/9600/19200/38400 bps
Parity: no, even, odd
Stop bits: 1, 2
