
Description
What cannot be measured, cannot be improved: Ekinex supports the energy efficiency of buildings with its Smart Metering solution. The KNX single-phase KNX Secondary Electricity Meter from Ekinex 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 2 measuring circuits available are for connection via external current transformers. 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 designed for installation in flush-mounting boxes or inside switchboards and control cabinets (with the supplied accessory).
Technical data
- •Supply voltage: 230 V AC
- •Rated frequency fn: 50 Hz
- •Current transformers from Imax 5 A up to Imax 120 A (not included in delivery)
- •Current consumption from bus < 10 mA
Supply
The scope of delivery includes a terminal for connection to the KNX bus line. To be completed with separately ordered EK-MST-A current transformers.
Functions / Features
Configuration and commissioning
A detailed description of the parameters can be found in the device's application manual. ETS5 or later versions are required for configuration and commissioning. Application programme for ETS: APEKMSXTP##.knxprod
Documentation
Datasheet
STEKMS2TPTA_EN• v. 1.0(27/02/2026)• PDF• 705,2 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-MS2-TP-TA• 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-MS2-TP-TA_FW_v.1.0.3_upgrade• v. 1.0.3(30/03/2026)• ZIP• 7,8 MB
Drawing (DXF)
DQEKMS2TPTA• DXF• 21,4 MB