AQ-E215 Energy management device


AQ-E215 is an energy management device that integrates kWh metering with billing-level accuracy and the fault location functionality in one single equipment. The combination of highly accurate measurement technology and fault detection algorithms allows AQ-E215 to be applied for various applications: volt/VAR optimization, power loss tracking, and the reduction of power outages via accurate fault locating. The AQ-E215 energy management device communicates to SCADA and DMS systems with various standard protocols, which makes your power distribution grids smarter while the cost remains affordable.


  • kWh metering at billing-level accuracy (class 0.2S).
  • Input for volt/VAR optimization.
  • Directional and non-directional overcurrent and earth fault detection for accurate fault locating.
  • Intermittent/transient earth fault detection.
  • Impedance calculation for short-circuit fault locating.
  • Detection of voltage presence.
  • Disturbance recorder for fault analysis.
  • A full set of communication protocols.

Technical data

  • Resistance temperature detectors (RTD)
  • Voltage memory
  • Fault indicating functions
  • Non-directional overcurrent (I>; 50/51)
  • Non-directional earth fault (I0>; 50N/51N)
  • Directional overcurrent (Idir>; 67)
  • Directional earth fault (I0dir>; 67N/32N)
  • Intermittent earth fault (I0int>; 67NT)
  • Undervoltage (U>; 27)
  • Neutral overvoltage (U0>; 59N)
  • Fault locator (21FL)

  • Number of objects to control and monitor: 10
  • Number of indicators to monitor: 5
  • Number of setting groups: 8

  • Phase, sequence and residual currents (IL1, IL2, IL3, I01, I02)
  • Phase, sequence and residual voltages (UL1, UL2, UL3, U12, U23, U31, U0)
  • Frequency (f)
  • Power (P, Q, S, pf) and Energy (E+, E-, Eq+, Eq-)
  • Power and energy class 0.5
  • Power and energy class 0.2S (optional)
  • Current transformer supervision
  • Voltage transformer supervision (60)
  • Total harmonic distortion (current)
  • Total harmonic distortion (voltage)
  • Measurement recorder
  • Measurement value recorder
  • Event recorder (max. 15 000 permanent event records)
  • Disturbance recorder (max. 100 records á 5 seconds at 3.2 kHz sampling)

  • Current inputs: 5
  • Voltage inputs: 4
  • Digital inputs (fixed): 3
  • Digital outputs (fixed): 5
  • Number of empty slots: 3
  • Digital inputs: +8/16/24 (optional)
  • Digital outputs: +5/10 (optional)
  • Milliampere I/O module (4 mA outputs + 1 mA input)
  • Communication media (see "Communication" below)
  • External I/O modules (see "Accessories" below)

  • Communication inputs
  • RJ-45 100 Mbps Ethernet (front panel, fixed)
  • RJ-45 100 Mbps Ethernet and RS-485 (rear panel, fixed)
  • 2 x RJ-45 100 Mbps Ethernet with an IRIG-B input (optional)
  • 2 x ST 100 Mbps Ethernet with an IRIG-B input (optional)
  • 2 x LC 100 Mbps Ethernet (PRP/HSR) (optional)
  • RS-232 serial fiber (PP/PG/GP/GG) (optional)
  • Communication protocols
  • IEC 61850 (edition 1)
  • IEC 60870-5-101/104
  • IEC 60870-5-103
  • Modbus/RTU and Modbus/TCP
  • DNP3
  • SPA

  • AX007 External 6-channel 2-/3-wire RTD input module (pre-configured)
  • AX008 External 8-channel thermocouple and mA input module (pre-configured)
  • AX009 Raising frame (87 mm)
  • AX010 Raising frame (40 mm)
  • AX011 Combiflex frame
  • AX012 Wall mounting bracket

Additional material

Application Drawing

AQ-E215 application drawings v1.00

Device Rear Image

Device rear image_AQ-215_AAA

Device and Cut-out Image

AQ-210 dimensions and cut-out

Order Code

Order code_E215

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