
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
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