KNX three-phase secondary electricity meter

DIN-Rail mount modules

CODE: EK-MS1-TP-20D

Description

What cannot be measured, cannot be improved: Ekinex supports the energy efficiency of buildings with its Smart Metering solution. Ekinex's KNX 3-phase secondary electricity meter is a device for measuring active and reactive electrical energy with bidirectional counting for imported and exported energy, current, voltage, active and reactive power, power factor and other electrical parameters. The 3 available measurement circuits are for direct connection up to 20A and can also be used as independent single-phase. The device has an integrated communication module to the KNX bus.

The meter provides electrical parameters on the KNX bus, has total/partial counters, comparators and other logic functions, and is configurable via ETS for integration into the energy management system with functions such as load control or threshold monitoring. The device is made for DIN-rail mounting according to EN 60715 inside switchboards and control cabinets.

Technical Data
  • Rated voltage Un: 3x230/400 V AC (+/- 20%)
  • Rated frequency fn: 50 Hz
  • Direct connection current Imax 20 A
  • Current consumption from bus < 10 mA
Supply

A terminal for connection to the KNX bus line is included in the scope of supply.

Functions / Features
  • OLED display for displaying measured and diagnostic information
  • Bidirectional measurement of electrical parameters for single-phase and three-phase circuits
  • Connection of measuring circuits with direct connection via screw terminals with cable cross-section up to 4mm2
  • Accuracy better than 2%
  • Connection to bus line via KNX terminal
  • 4 UM modular plastic housing (1 UM = 18 mm)
Configurationa and commissioning
STEKMS1TP20D_EN
  • v. 1.0 (27/02/2026)
  • PDF | 841,9 KB
  • Download
FISPMSxTPTA20DIE2.PDF
  • v. 2 (27/02/2026)
  • PDF | 1,1 MB
  • Download
MAEKMSxTP_TA_20D_EN
  • v. 1.3 (13/07/2026)
  • PDF | 1,8 MB
  • Download
APEKMSXTPX02
  • v. 0.2 (27/04/2026)
  • KNXPROD | 211,8 KB
  • Download
CEEKMSXTP
  • v. 2.0 (27/02/2026)
  • PDF | 342,9 KB
  • Download
UKCADCEKMSXTP
  • v. 2.0 (27/02/2026)
  • PDF | 124,6 KB
  • Download
KNX_Certification_EK-MS1-TP-20D
  • v. 1.0 (27/04/2026)
  • PDF | 770,6 KB
  • Download
MAEKFWUPD_EN
  • v. 1.0 (17/03/2025)
  • PDF | 980,9 KB
  • Download
Setup_FirmwareUpdater_1.0.0-dev2-6c755f4e
  • v. 1.0.0 (01/04/2025)
  • EXE | 7,6 MB
  • Download
EK-MS1-TP-20D_FW_v.1.0.3_upgrade
  • v. 1.0.3 (30/03/2026)
  • ZIP | 7,9 MB
  • Download
DQEKMS1TP20D
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