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      X20AP3131

      Energy Measurement Module
      Ships by Thursday, November 12
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      B&R X20AP3131 is a three-phase power and energy measurement module with four 5 A current-transformer inputs and voltage measurement up to 480 V AC phase-to-phase.
      • Manufacturer part number
        X20AP3131
      • Shipping
        Swift global dispatch
      • Condition
        New, original product
      • Shipping size (est.)
        9.7cm x 5.8cm x 1.1cm
      • Country of Origin
        Austria

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      What happens after you enquire

      • 0

        Review your reference

        Send the complete B&R X20AP3131 reference, label photographs and required quantity. Match X20AP3131, 5 A CT inputs and the installed transformer arrangement.

      • 1

        Confirm the offer

        Review the offered revision, condition, included items and documents against the confirmed installation.

      • 2

        Arrange dispatch

        Confirm quantity, dispatch date, lead-time start and delivery details in the quotation.

      • Match the complete marking

        Provide the complete B&R X20AP3131 marking. Match X20AP3131, 5 A CT inputs and the installed transformer arrangement.

      • Check the offered item before ordering

        Request available label and connector photos. Have your maintenance team compare the offered X20AP3131 with the installed equipment and applicable B&R instructions.

      Technical specifications for X20AP3131

      • Manufacturer:
        B&R
      • Product Category:
        PLC Systems
      • Spare Part Number:
        X20AP3131
      • Weight:
        0.02 kg
      • Tariff Code:
        8537101190
      • Voltage phases:
        3
      • Current inputs:
        4 AC inputs
      • CT secondary rating:
        5 A
      • Phase-to-phase voltage:
        480 V AC maximum
      • Phase-to-neutral voltage:
        277 V AC maximum
      • Nominal frequency:
        50/60 Hz
      • Frequency range:
        45–65 Hz
      • Voltage input impedance:
        1.68 MΩ
      • Current-input burden:
        20 mΩ
      • Voltage resolution:
        10 mV with direct voltage connection
      • Frequency resolution:
        0.01 Hz
      • Harmonic analysis:
        Through 31st harmonic
      • Trace sampling:
        8 kHz for 3 voltage and 4 current channels
      View as PDF Ask for Quote

      Information

      Overview Downloads Applications / Compatibility Product Precautions
      • B&R X20AP3131 combines electrical consumption data with power-quality information so that a machine controller can relate energy use to its operating state.
      Inputs: Three voltages and four 5 A CT channels
      Analysis: Power, energy and harmonics
      Capture: Seven-channel 8 kHz trace
      The module measures three voltage phases and four AC currents. The selected 3131 variant uses 5 A secondary current transformers; the current-transformer ratio must be configured for meaningful primary-current and energy values.

      Voltage measurement supports up to 480 V AC between phases and 277 V AC phase-to-neutral at nominal 50/60 Hz, with a 45–65 Hz measurable frequency range. The displayed 655 V limit is not a normal input-rating target.

      Measured data includes active, reactive and apparent power and energy, direction of energy flow, phase sequence and harmonic content. Fourier analysis reaches the 31st harmonic, and signal tracing records the three voltage and four current channels at 8 kHz through a FIFO buffer.
      Controller platform reference: X20 power and energy measurement. Match the installed configuration and applicable instructions.
      B&R X20AP3131: original manufacturer technical information covering the specified interfaces and operating limits. Installation topics include: identify the 5 a ct arrangement, map phases and current polarity, configure transformer scaling, compare power direction, check energy accumulation.
      Original manufacturer pages retain their technical context. Use the Apter Power guide with the applicable manufacturer instructions and approved installation design.
      System and supply context: B&R X20AP3131 operates within the following defined system context. Match X20AP3131, 5 A CT inputs and the installed transformer arrangement.

      Application scope: The applications below describe its technical role. Select associated hardware and configuration for the actual installation.
      Prepare B&R X20AP3131 for its configured installation using these checks.
      Secure the voltage and CT circuits

      Isolate the voltage measurement circuit and use the approved CT shorting procedure before disconnecting secondary wiring. Never leave an energized current-transformer secondary open.

      Apply the required insulation

      Use wiring and current transformers with the required double or reinforced insulation. Follow the exact 3131 input circuit rather than the grounded-CT arrangement of a 3132 module.

      Check the voltage boundary

      Verify phase-to-phase and phase-to-neutral values against 480 V AC and 277 V AC. Treat a saturated displayed value as a reason to investigate the input range.

      Review harmonic and trace data

      Use the harmonic analysis and 8 kHz trace for their intended diagnostic purpose. Keep sample timing and FIFO behavior in mind when comparing a recorded disturbance with controller events.

      Retain the metering configuration

      Save CT ratios, polarity, phase map, voltage arrangement, module revision and verification results. Keep the exact variant's insulation and wiring requirements with the service record.

      Check energy accumulation

      Compare accumulated energy over a defined interval with a suitable reference under stable load. Confirm transformer scaling before interpreting a discrepancy as module error.

      Alternative Names

      B&R X20AP3131

      Technical notes

      Operating boundary: CT ratio and polarity errors affect several derived quantities simultaneously. Establish the primary scaling and phase assignment before evaluating metering accuracy.

      Integration details: Match the 5 A 3131 input variant, CT insulation, phase wiring and module revision; do not transfer grounded-CT wiring or revision-specific accuracy from another option.

      Technical basis: B&R X20(c)AP31xx Data Sheet, V2.70. X20AP3131 uses 5 A current-transformer secondary inputs. The X20AP3132 grounded-current-transformer arrangement is a different variant; accuracy depends on revision and stated test conditions.

      FAQ View All FAQ

      • Which current-transformer secondary rating does X20AP3131 require?
        The X20AP3131 variant uses 5 A secondary inputs. The 20 mA and 1 A variants have different order numbers.
      • Why must the transformer ratio be configured for X20AP3131?
        The secondary measurement must be converted to the actual primary current. An incorrect ratio propagates into power and energy calculations.
      • Does a 655 V displayed value make X20AP3131 a 655 V rated input module?
        No. The nominal limit is 480 V AC phase-to-phase and 277 V AC phase-to-neutral. A maximum displayed value requires checking for an exceeded measurement range.
      • Can X20AP3131 measure harmonic distortion as well as energy?
        Yes. It calculates harmonic content through the 31st harmonic and total harmonic distortion alongside power and energy measurements.
      • How many waveforms can be recorded by the trace function of X20AP3131?
        The trace captures three voltage and four current channels at 8 kHz using a FIFO buffer.
      • Why does current-transformer polarity matter for X20AP3131?
        Polarity and phase assignment affect the relationship between voltage and current, including power sign, phase angle and energy-flow direction.
      • Can the grounded-CT wiring of X20AP3132 be copied onto X20AP3131?
        No. X20AP3131 and X20AP3132 are different input arrangements. Apply the wiring and insulation requirements for the exact 3131 variant.
      • Which frequency range can X20AP3131 measure?
        It supports a measurable frequency range of 45–65 Hz around nominal 50/60 Hz systems.
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