Programmable AC Masibus Current Transducer

The Masibus Current Transducer, PDA/PDV, is employed for the measurement and conversion of AC current or voltage inputs into load-independent DC current or voltage output signals. The generated output signal is directly proportional to the root mean square value of the input current or voltage.

This transducer features two load-independent, galvanically-isolated analog outputs that can be customized to suit various input ranges and output curves. AC transducers provide an economical and accurate method for current and voltage measurement in systems calibrated to true RMS values. These transducers are commonly used to interface with Remote Terminal Units (RTUs).

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Features of Masibus Current Transducer

  • High accuracy class of 0.2
  • Complies with IEC 60688 standards
  • Utilizes True RMS measurement
  • Offers long-range, site-configurable inputs and outputs
  • Allows on-site selection of output type (DC current or DC voltage)
  • Maintains load-independent accuracy on all outputs
  • Available in both single and dual output configurations
  • Features a programming port for easy configuration
  • Ensures fast response times
  • Demonstrates excellent long-term stability
  • Provides strong isolation and impulse resistance
  • Includes transient protection
  • Designed for DIN-Rail mounting for convenient installation.

Applications of Masibus Current Transducer

  • Power generation and transmission distribution stations
  • Building management
  • Load dispatch centers
  • Original Equipment Manufacturers (OEMs) for power equipment
  • High-Tension (HT) and Low-Tension (LT) panels
  • Substation automation
  • Supervisory Control and Data Acquisition (SCADA)
  • Local and central monitoring systems

Specification of Masibus Current Transducer

Configuration Single phase Auxiliary Power Supply
Input Universal aux. supply : 85-265VAC, 50/60Hz or 100-300VDC

Power Supply                          Burden : < 5.5VA (2.2W) DC aux. Supply : 20-60VDC Burden : < 2.2W

AC Voltage
Nominal Input (Un)                  57.7 V to 415 V

(PT Secondary)

Measuring Voltage Range 0 to 130 % Un
Measurement Method             True RMS Isolation (Withstanding Voltage)

Between primary terminals* and secondary terminals**: At least 3000 V AC for 1 minute

Between primary terminals*: At least 3000 V AC for 1 minute

Between secondary terminals**: At least 500 V AC for 1 minute

* Primary terminals indicate aux power terminals & input terminals.

** Secondary terminals indicate analog O/P-1 and analog O/P-2.

Insulation resistance: 200MΩ or more at 500 V DC between Input/Output/Power/ Case and grounding terminal

Burden <0.3VA at Un
PT Ratio                                   1 to 9999.999 programmable on site

Maximum Overload Voltage

1.3 x Un continuously

2 x Un for 1 s, with up to 10 repetitions at 10 s intervals

AC Current Environmental
Nominal Input (In)

(CT Secondary)

1A to 5A Operating Temperature 0 to +55 C
Storage Temperature                   -40º to 85ºC
Measuring  Current Range      0 to 150 % In Relative Humidity 25-95% non-condensing
Measurement Method True RMS Warm up Time                            15 minutes
Burden                                    <0.2VA at In Installation Category CAT III for < 300V AC
CT Ratio 1 to 9999.999 programmable on site Protection Class                          II
2 x In continuously

Maximum Overload Current 20 x In for 1 s, with up to 10 repetitions

at 100 s intervals

Pollution Degree 2
Ingress Protection                       Housing : IP40, terminals : IP20
Frequency 45 to 65Hz Mounting Type DIN-Rail
Analogue output Dimension (in mm)                      71H x 61W x 112D
Accuracy Class 0.2 Case Material ABS
No. of Outputs                         2 Weight                                       0.4 Kg
Output Type 4-20mA, 0-20mA, 0-10V, 0-5V, 1-5V DC Connector Type Metal screw
Maximum Load Resistance      ≤750 Ω for 20 mA,  ≥ 2 k Ω for 10 V

(for each output)

Conductor Size for Terminals ≤ 4 mm2
Communication Ports
Response Time <500mS Mini USB type: For on-site con figuration
Ripple                                     <0.4% peak to peak Configuration Software Tool
Usage Group I mMFT

For on-site configuration of measurement inputs, output and online parameter reading.

It can be freely downloaded from

Standards compliance
Standards                                Accuracy as per IEC 60688