Siemens 6ES7134-6PA01-0BU0 ET 200SP AI Energy Meter CT ST 1A/5A Remote I/O Module

The Siemens 6ES7134-6PA01-0BU0 is a SIMATIC ET 200SP analog input module, type AI Energy Meter CT ST, that measures voltage, current, power, energy, and frequency using a 1 A or 5 A current transformer on BaseUnit type U0. It provides IEC 61557-12 class 0.2 accuracy for voltage and current and class 0.5 for active power and energy.

Technical Specifications

Selection Notes

The dual current-transformer option (1 A or 5 A secondary) lets one module cover both low- and standard-current CT installations without a separate part number, and the class 0.2 accuracy on voltage and current versus class 0.5 on active power and energy matches IEC 61557-12 requirements for sub-metering rather than revenue metering. With an address space of 256 bytes input and 20 bytes output, it carries more process data per cycle than a standard ET 200SP analog module, reflecting the multiple simultaneous measured values it reports. Reparameterization and calibration are both possible in RUN (CiR), which matters when adjusting the CT ratio without stopping the controller.

Applications

Used for sub-metering and energy monitoring of individual feeders or loads within a SIMATIC ET 200SP distributed I/O station, feeding power quality and consumption data into the PLC without a separate energy meter.