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 CT.
Provides expansion interface for flexibility and expansibilityOffers wall-mount mechanism and magnet for installation.
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.
4 pole 3.5mm audio cable with 25 cm wire lead
EFT (IEC 61000-4-4)
+/- 500 V
ESD (IEC 61000-4-2)
+/- 4 kV Contact
1 x Power
1 x STA
Rogowski Coil Channels
Rogowski Coil Type
Φ80mm (1000A); 4 m wire
Split-core CT Channels
1 (for charging only)
Split-core CT Type
Φ16mm (100A), Φ24mm (200A), or Φ36mm (400A); 8 m wire
Maximum 500VAC, 50/60 Hz
±3% or ±2A
0 ~ 15 configured by DIP switch
0 ~ 3 configured by DIP switch
433.1000 ~ 434.6000 MHz
9±1dBm (PA Off) / 18±1dBm (PA On)
Transmission Distance (LoS)
1 ~ 31 configured by DIP switch
1 sec, 10 sec, 30 sec and 60 sec configured by DIP switch
0 dBi Omni directional PCB antenna
1-sec Tx Duty: 11 A
10-sec Tx Duty: 3 A
30-sec Tx Duty: 3 A
60-sec Tx Duty: 3A
Li-ion battery (compliant with UL1642) charged by CT induced current