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    iWSN-1120X-240-RCT1000P、 iWSN-1120X-360-RCT1000P

    iWSN wireless 1 Rogowski Coil current measurement channel and 1 expansion interface sensing module(RoHS)

    ~ Available soon ~

    ~ Available soon ~

    The iWSN series sensing module is a self-powered module for AC current, digital input and temperature measurement. It can harvest the demand electricity from CT induced current so that there is no necessary to supply the power line for power supply. By means of sub-1G RF communication interface, iWSN series can approach to the real wireless deployment. The diversified IO interface, such as split-core CT, Rogowski coil, NTC thermistor and dry contact DI, provides users more choices for various applications. Considering the maintenance and installation, the iWSN sensing module uses the DIP switch and rotary switch for configuration. Through the flexibility of the expansion interface and good price performance, the iWSN sensing module can be widely used in the application of saving power, big data analysis, and predict maintenance.


    • Self-powered by built-in a chargeable Li-ion battery.
    • Split-core current transformer (CT) for easy installation.
    • Energy harvest from the CT induced electricity.
    • Uses 433 MHz radio frequency for communication.
    • 16 RF Channels and 4 Group ID, consist of maximum 64 RF sub-networks.
    • Supports maximum 400A open-core CT or 1000A Rogowski CT.
    • Provides expansion interface for flexibility and expansibility.
    • Offers wall-mount mechanism and magnet for installation.
    Models iWSN-1120X-240-RCT1000P
    RF Interface
    Radio Frequency
    433.1000 ~ 434.6000 MHz
    RF Channel
    0 ~ 15 configured by DIP switch
    0 dBi Omni directional PCB antenna
    Transmission Power
    9±1dBm (PA Off) / 18±1dBm (PA On)
    Transmission Distance (LoS)
    100 m
    Group ID
    0 ~ 3 configured by DIP switch
    Node ID
    1 ~ 31 configured by DIP switch
    Working Duty(*1)
    1 sec, 10 sec, 30 sec and 60 sec configured by DIP switch
    For wake up the sensing module immediately
    For boot up sensing module quickly
    LED Indicators
    1 LED, Red
    EMS Protection
    +/- 4 kV Contact
    +/- 500 V
    Li-ion battery (compliant with UL1642) charged by CT induced current

    Power Consumption

    1-sec Tx Duty
    11 A
    10-sec Tx Duty
    3 A
    30-sec Tx Duty
    3 A
    60-sec Tx Duty
    3 A
    Fire Retardant Materials
    Dimensions (L x W x H)
    152 mm x 85 mm x 25 mm
    Wall-mount or magnet adsorption
    Operating Temperature
    0 °C ~ +45 °C
    Storage Temperature
    -20 °C ~ +50 °C
    Relative Humidity
    10 ~ 90% RH, Non-condensing
    CE + RED

    Group transmitters up to 31 units. But if set to 1 second, the number of groups can be up to 5.
    (*2) The minimum current required in the AC cable for balancing module's power charging and power consumption.
    Models iWSN-1120X-240-RCT1000P
    Split-core CT Channel Number
    1 (for charging only)
    Split-core CT Type(*1)
    Φ24mm (200A);8 m wire
    Φ36mm (400A);8 m wire
    Rogowski Coil Channel Number
    Rogowski Coil Type
    Φ80mm (1000A); 4 m wire
    Input Voltage
    Maximum 500VAC, 50/60 Hz
    ±3% or ±2A
    Channel Number
    4 pole 3.5mm audio cable with 25 cm wire lead
    (*1) iWSN-11□□□-160 with Φ16mm (100A), iWSN-11□□□-240 with Φ24mm (200A), iWSN-11□□□-360 with Φ36mm (400A), iWSN-1120X-240-RCT Φ24mm (200A), iWSN-1120X-240-RCT with Φ36mm (400A).
    iWSN wireless sensing module (RoHS);includes 200A Split-Core CT (Inside diameter 24mm; wire lead 8m) x1, 1000A Rogowski Coil (Inside diameter 80mm; wire lead 4m) x1
    iWSN wireless sensing module (RoHS);includes 400A Split-Core CT (Inside diameter 36mm; wire lead 8m) x1, 1000A Rogowski Coil (Inside diameter 80mm; wire lead 4m) x1.
    Important Note:
    The iWSN sensing module measurement information must be collected through the iWSN receiver. Users can refer to the iWSN-2200 or iWSN-2200-E module according to their needs.
    iWSN data concentrator with RS-232/RS-485 serial port (RoHS)
    iWSN data concentrator with Ethernet port (RoHS)
    8 m 100A Φ16mm Split-Core CT
    8 m 200A Φ24mm Split-Core CT
    8 m 400A Φ36mm Split-Core CT
    5 m Magnetic plug thermistor
    5 m Metal plug thermistor
    2 m Black plastic plug thermistor
    5 m Black plastic plug thermistor