The SIEMENS ET 200SP AI Energy Meter RC ST (Model: 6ES7134-6PA21-0BU0) is a cutting-edge analog input module designed for precision energy monitoring. Engineered for Rogowski coils and current/voltage transformers with 333 mV input, this unit guarantees accurate energy measurement and channel diagnostics. Compact in design, it measures 20 x 73 x 58 mm and weighs just 45 grams, making it ideal for rack-mount applications. With a rated voltage of 24V DC and an input current of 17 mA, it ensures efficient power usage with a low power loss of 400 mW. The robust aluminum body with a sleek matte finish provides durability, while its IP20 protection level safeguards against external damage. Featuring an operational temperature range of -30C to +60C, this energy meter is built for extreme conditions. Backed by a 1-year warranty, its the perfect solution for industries requiring efficient energy monitoring and diagnostics.

SIMATIC ET 200SP – AI Energy Meter RC ST (6ES7134-6PA21-0BU0)

• Type: Analog input module, AI Energy Meter RC ST
• Channels: Max. 3 + neutral conductor
• Supported Sensors: Rogowski coils or current/voltage converter 333 mV
• Firmware Version: V8.0 (FW update possible)
• BaseUnit: BU type U0
• Color Code: CC20
• Supported Power Systems: TT, TN, IT
• Module Width: 20 mm
• Height: 73 mm
• Depth: 58 mm
• Weight: 45 g

Product Functions

• Voltage measurement: Yes (with/without VT)

• Current measurement: Yes (with Rogowski coil or 333 mV converter)

• Energy measurement: Yes

• Frequency measurement: Yes

• Power measurement (active & reactive): Yes

• Power factor measurement: Yes

• Active factor measurement: Yes

• Reactive power compensation: Yes

• Line analysis: No

• I&M data: I&M0 to I&M3

• Isochronous mode: No

Engineering / Configuration

• STEP 7 TIA Portal: Configurable from V16 or higher

• STEP 7: Configurable via GSD file

• PROFIBUS: GSD revision 3 & 5+

• PROFINET: GSD V2.3

• Switching operating modes in RUN: Yes

• Reparameterization & calibration in RUN: Yes

Supply Voltage

• Rated: 24 V DC

• Permissible range: 19.2 – 28.8 V DC

• Current consumption: 12.5 mA (typ.), max 17 mA

• Power loss: 400 mW (3x 230 V AC)

Analog Inputs

• Cycle time (all channels): 50 ms

• Cable length: max 200 m (shielded/unshielded)

• Sampling frequency: max 2048 kHz

• Measuring procedure: TRMS, seamless acquisition

• Curve shape: Sinusoidal or distorted

• Buffering of measured variables: Yes

• Parameter length: 128 byte

• Bandwidth: 3.2 kHz; Harmonics 50/52/60 Hz

Measuring Range

• Frequency: 40 – 70 Hz

• Voltage:

  • Phase to neutral: 3 – 300 V (max 277 V)

  • Phase to phase: 6 – 519 V (max 480 V)

  • Power per phase: 60 mW

  • Internal resistance: 1.5 MΩ

  • Impulse voltage resistance: 2.5 kV

  • Overvoltage category: CAT II IEC 61010-1

• Current (Rog. or I/U converter):

  • Max AC current: 424 mV

  • Max continuous voltage: 2 V

  • Short-time withstand voltage (1 s): 30 V

  • Input resistance: 120 kΩ

  • Zero point suppression: 0 – 20%

Accuracy (IEC 61557-12)

• Voltage: 0.2

• Current: 0.2

• Apparent power: 0.5

• Active power: 0.5

• Reactive power: 1

• Power factor: 0.5

• Active energy: 0.5

• Reactive energy: 1

• Neutral current: 0.2

• Phase angle: ±0.5°

• Frequency: 0.05

Potential Separation & Isolation

• Between channels: No

• Between channels and backplane bus: Yes

• Between channels and load voltage L+: Yes (including FE)

• Isolation tested: 1920 V AC (routine), 707 V DC (type)

Ambient Conditions

• Operation (horizontal): -30 … +60 °C

• Operation (vertical): -30 … +50 °C

• Max installation altitude: 3000 m

Technical Details 

FAQs of SIEMENS ET 200SP AI Energy Meter RC ST 6ES7134-6PA21-0BU0: