Energy Meter

Energy Meter, 1 A
Energy Meter, 1 A

Energy Meter, 1 A

The energy meter function module can be used to measure all important current and voltage measurement values on 230 V AC networks.

The energy meter function module can be used to measure all important current and voltage measurement values on 230 V AC networks. Input voltages (3 phases + N) can be connected directly to the module.
In addition to general status information, the module's configuration can be used to show up to 7 readings in the input image table.
In the event of a system failure, the controllable meter's values will be stored in non-volatile memory.

Parameters for the module

  • Overvoltage / undervoltage threshold
  • Overcurrent threshold
  • Zero transition timeout
  • Enable energy meter
  • 50/60 Hz line frequency
  • 3-wire or 4-wire voltage measurement
  • Process image table input values

Parameters for phases A, B, and C

  • Primary current
  • Secondary current
  • Phase angle error correction (for current transformer phase angle error)
  • Zero crossing, overvoltage / undervoltage , overcurrent diagnoses

Configurable process input image table

  • 7 readings at the same time
  • RMS voltage A,B,C
  • RMS current A,B,C
  • A, B, C, and total real power/energy
  • A, B, C, and total apparent power/energy
  • A, B, C, and total reactive power/energy
  • Frequency
  • A, B, C, and total power factor
  • Phase angle between the voltages or between the currents

Diagnostic messages

  • Phase shift
  • Overvoltage / undervoltage
  • Overcurrent
  • No zero crossing (no phase)
  • Configuration errors

Input currents are coupled through current transformers. The Energy Meter module is designed for a maximum secondary current of 1 A.
Other rated secondary currents, as well as the use of Rogowski coils, are available upon request.


  • Measures current, voltage, power, and energy
  • 1 three-phase or 3 single-phase
  • 3-wire and 4-wire voltage measurements
  • Measures real, reactive, and apparent power and energy
  • Energy meter with gate function; values are storedin the module in a non-volatile manner
  • Configurable process input image table
  • Diagnostic messages
  • Current measurement via 1 A current transformer (secondary current)
Download PDF datasheet
General information
Order number600-255-7AA21
Article nameEnergy Meter, 1 A
Scope of deliveryEnergy Meter, 1 A
Dimensions (DxWxH)110 x 25 x 73 mm
WeightApprox. 120 g
Number of inputsVoltage L1, L2, L3, N, Current I1, I2, I3
VoltageMax. 400 V AC
CurrentMax. 1 A, secondary
from the backplane busYes
DiagnosesUndervoltage/overvoltage, Overcurrent, No zero crossing, Phase shift
Parameter configuration length25/49 bytes
General error indicatorRed LED
InternalMax. 150 mA
Power dissipationMax. 2.0 W
Hot-swap capableYes
Ambient conditions
Ambient temperature0 °C … +60 °C
Transport and storage temperature-20 °C … +80 °C
Relative air humidity95 % r H without condensation
Protection ratingIP 20
CertificationsCE, UL pending
CE
Noise immunityDIN EN 61000-6-2 “EMC Immunity”
Interference emissionDIN EN 61000-6-4 “EMC Emission”
Vibration and shock resistanceDIN EN 60068-2-6:2008 „Vibration“, DIN EN 60068-2-27:2010 „Shock"
RoHSYes
REACHYes

Technical Documentation

 NameVersionSizeTags
TB20, Manual Energy Meter 1 4 MB

Flyers

 NameVersionSizeTags
Flyer, TB20 IO-system for numerous applications 11-2017 4 MBTB20 IO-system for numerous applications

Planning Tools

 NameVersionSizeTags
Energy Meter, 1 A, STEP Files 3 MBEnergy Meter, 1 A, STEP Files
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