ekinex

Three-phase secondary electricity meter for external KNX current transformers

Code: EK-MS1-TP-TA

New
Three-phase secondary electricity meter for external KNX current transformers

Description

What cannot be measured cannot be improved: Ekinex supports energy efficiency in buildings with its smart metering solution. The Ekinex KNX three-phase secondary electricity meter is a device for measuring active and reactive electricity 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 connection via external current transformers (CTs) and can also be used as independent single-phase circuits.

The device is equipped with an integrated communication module for the KNX bus. The meter provides electrical parameters on the KNX bus, has total/partial counters, comparators and other logic functions, and can be configured via ETS for integration into the energy management system with functions such as load control or threshold monitoring. The device is designed for mounting on a DIN rail in accordance with EN 60715 inside electrical panels and cabinets.

Technical data

  • •Nominal voltage Un: 3x230/400 V AC (+/- 20%)
  • •Nominal frequency fn: 50 Hz
  • •Current transformers from Imax 5 A up to Imax 120 A (not included in the supply)

Supply

The supply includes a terminal for connection to the KNX bus line. To be completed with EK-MST-A current transformers, ordered separately.

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 to current transformers via screw terminals with cable cross-sections up to 4 mm
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

STEKMS1TPTA_EN• v. 1.0(31/08/2026)• PDF• 768,7 KB

Instructions

FISPMS1TPTAIEX00• v. 0(27/02/2026)• PDF• 948,3 KB

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-TA• v. 1.0(21/04/2026)• 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-TA_FW_v.1.0.3_upgrade• v. 1.0.3(30/03/2026)• ZIP• 7,9 MB

Drawing (DXF)

DQEKMS1TPTA• DXF• 1 MB