ekinex

KNX three-phase secondary electricity meter

Code: EK-MS1-TP-20D

New
KNX three-phase secondary electricity meter

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)

Configuration and commissioning

A detailed description of the parameters can be found in the device application manual. ETS5 or later versions are required for configuration and commissioning. Application program for ETS: APEKMSXTP##.knxprod

Documentation

Datasheet

STEKMS1TP20D_EN• v. 1.0(27/02/2026)• PDF• 841,9 KB

Instructions

FISPMSxTPTA20DIE2.PDF• v. 2(27/02/2026)• PDF• 1,1 MB

Application manual

MAEKMSxTP_TA_20D_EN• v. 1.3(13/07/2026)• PDF• 1,8 MB

Application software for ETS

APEKMSXTPX02• v. 0.2(27/04/2026)• KNXPROD• 211,8 KB

CE Conformity declaration

CEEKMSXTP• v. 2.0(27/02/2026)• PDF• 342,9 KB

UKCA statement

UKCADCEKMSXTP• v. 2.0(27/02/2026)• PDF• 124,6 KB

KNX certification

KNX_Certification_EK-MS1-TP-20D• v. 1.0(27/04/2026)• PDF• 770,6 KB

Firmware update manual

MAEKFWUPD_EN• v. 1.0(17/03/2025)• PDF• 980,9 KB

Firmware updater setup

Setup_FirmwareUpdater_1.0.0-dev2-6c755f4e• v. 1.0.0(01/04/2025)• EXE• 7,6 MB

Firmware upgrade package

EK-MS1-TP-20D_FW_v.1.0.3_upgrade• v. 1.0.3(30/03/2026)• ZIP• 7,9 MB

Drawing (DXF)

DQEKMS1TP20D• DXF• 1 MB