• 2-loop 3-phase or 4-loop single-phase AC circuits measurement
  • Supports split current transformer (CT)
  • 3P4W, 3P3W, 3P3W 2CT, 1P3W or 1P2W wiring type
  • Bi-direction kWh measurement
  • True RMS calculations for voltage and current signals
  • Powers by the measured voltage cable; no extra power wiring is needed
  • Built-in 2A Fuse to keep the main circuit safe
  • Timestamp for each measured data by the built-in RTC
  • 3-minute history data cache for supplement
  • Uses 433MHz radio frequency and provides max. 64 wireless sub-network.
  • IP33 protection to prevent from circuit short by fire sprinkler system
  • Connector cover to avoid the exposed connector and electric shock


The iWSN-9603 series module is a 3-phase AC power meter, which provides one 3-phase voltage input and two 3-phase Max. 400A current CT inputs, and suits measuring the power information of different equipment powered by the same AC source. By means of wireless communication and powering from the measured voltage cable, it can greatly reduce the cost and duration of installation, and satisfy to the demand of distributed deployment and quick setup. Moreover, the features of Sub-GHz radio frequency and data supplement mechanism effectively improve the reliability of the wireless communication especially in the crowed or seriously shielded space of the factory environment. Consider the maintenance and installation issues, the iWSN-9603 series module is configured by the DIP switches, and uses special housing with IP33 protection to avoid the circuit short while the fire sprinkler system is activated if the module is located out of the panel box. Through the design of RTC and data timestamp, the iWSN-9603 series can fit the power saving applications, such as machine and process power efficiency improvement, power information administration, calculation of carbon emission, predictive maintenance, and big data analysis of power consumption.


  • Machine and process power efficiency improvement
  • Power information administration
  • Calculation of carbon emission
  • Predictive maintenance
  • Big data analysis of power consumption


 EMS Protection
 EFT (IEC 61000-4-4) +/- 500 V
 ESD (IEC 61000-4-2) +/- 4 kV Contact


 LED Indicators
 Status 1 x Power
1 x Tx
1 x Error


 AC Power Measurement
 Wiring 3P4W-3CT, 3P3W-2CT, 3P3W-3CT, 1P2W-1CT, 1P3W-2CT
 Loops 4(Single Phase)/ 2(Three Phase)
 Input Voltage Three phase 4 wire x1, 100 - 480 VAC (58 - 277 VAC single phase)
 Input Current 1A ~ 400A, depended on the connected CTs which refer to the accessories.
 Input Frequency 50/60 Hz
 Wh Accuracy Better than 2% (PF=1)
 Power Parameter   Measurement True RMS voltage (Vrms), True RMS current (Irms), Active Power (kW), Active Energy (kWh), Power Factor (PF), Frequency
 Data Update Rate 1, 10, 30, or 60 Seconds


 Includes CTs 0 (refer to order information for purchase)
 Type Split core CT
 Max. Current 400A depended on the selected CT type
 Inside Diameter 36mm depended on the selected CT type
 Leading Cable 8m


 Channels 0 ~ 15
 Group ID 0 ~ 3
 Radio Frequency 433.1000 ~ 434.6000 MHz
 Transmission Power 9±1dBm (PA Off) / 18±1dBm (PA On)
 Transmission Distance (LoS) 100 m
 Node ID 1 ~ 31
 Working Duty 1, 10, 30, or 60 Seconds


 Type Built-in Omni-directional antenn


 Consumption 3W
 Input Type Three phase 100 - 480 VAC (58 - 277 VAC single phase)


 Dimensions (mm) 85 x 184 x 47 (W x L x H)
 Installation Wall-mount
 Ingress Protection Rating IP33


 Operating Temperature -30 °C ~ +50 °C
 Storage Temperature --40 °C ~ +55 °C
 Humidity 10 ~ 90% RH, Non-condensing



CA-SCT16I-100A-L080 CA-SCT24I-200A-L080 CA-SCT36I-400A-L080
CA-SCT16I-100A-L080 CA-SCT24I-200A-L080 CA-SCT36I-400A-L080


iWSN-9603-PCT-ME-IP33     CR  iWSN Wireless 3-phase 2-loop intelligent power meter without CTs (RoHS) 1