MI 3144 Euro Z 800 V

The MI 3144 Euro Z 800 V is a multifunctional, portable battery (Li-ion) or mains powered test instrument with excellent IP protection: IP65 (case closed), IP54 (case opened). It can be controlled via an Android app A 1522 aMESM, MI 3152 EurotestXC, MI 3152H EurotestXC 2.5kV, MI 3155 EurotestXD or MI 3325 MultiServicerXD. The MI 3144 Euro Z 800 V is intended for measuring the effectiveness of automatic trip out protection in case of faults in transformers and other HV equipment. With its high precision line and loop impedance measurements on AC and DC circuits, high current dR 300A loop and line measurements for testing of partial currents and partial voltage drops, it is ideal for testing in industrial settings. It also supports contact voltage measurements, ELR electrical leakage relay testing with fault current injection, trip-out time measurement and DC source, line, battery and accumulator measurements.

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SKU: mi3144 Category:


Key features

  • High orecision 4-wire 300 A Z Line and Z Loop Impedance Tester;
  • High range impedance measurements in 800 V / 16 … 420 Hz AC networks;
  • DC Source & Line Resistance measurements in 3 … 260 V DC networks;
  • Hi Current dR 300 A 4-wire Partial Voltage drops and Current’s Path Resistances;
  • Earth Leakage Relay (ELR) Trip-out Testing Time and Current;
  • ELR supported types AC, A, B;
  • Ground fault analysis with contact, touch and step voltage;
  • Floating voltmeter for partial contact results;
  • One-Clamp Hi current grounding method with clamps (Flex & Iron);
  • Selectable test load (16.6 % to 100 %);
  • Improved thermal performance;
  • Portable battery (Li-ion) or mains powered test instrument;
  • IP protection: IP65 (case closed), IP54 (case opened);
  • CAT IV 600 V (3000 m) safety category;
  • Bluetooth communication;
  • Black box design (remote-controlled via an Android device).


Additional information

Dimensions 1 cm