Smart Current Transformer

Empowering Efficient Energy Management

CT305/CT310
smart current transformer ct3xx front small
smart current transformer ct305 small
smart current transformer ct310 small
ai workplace occupancy sensor top view small
  • Self-Powered Operation
  • Superior Accuracy with Up to 3.3kHz Frequency
  • Real-time Accumulated Ampere Hour Calculation
  • Non-invasive Installation
  • Irregular Current/Temperature Status Alert
  • Innovative One-to-Three Design
  • LoRaWAN® Wireless Deployment
  • FEATURES
  • MODELS
  • DOWNLOAD

Multi-Range Current Capacity

*Other measuring ranges can be quickly customized.
 

CT305

CT305 With 500A Current Capacity

CT310

CT310 With 1000A Current Capacity

Multi-Target Current
Measurement

With a one-to-three design, the current transformer can be
applied to measuring up to three different objects' electricity.

multi target current measurement

Non-Invasive Installation

The user-friendly current clamp probe is designed for non-invasive and quick installation, eliminating the risk of circuit damage or power interruptions.

Self-Powered:
No Batteries, No Limits

The CT3xx is designed to derive power directly from the measured circuit, eliminating the constraints of batteries while ensuring seamless operation

coordinate axis superior accuracy

Superior Accuracy

Outperform other competitors on the market, CT3xx boasts an impressive high sampling frequency of up to 3.3kHz, guaranteeing unparalleled accuracy and detail.

Efficient Energy Tracking

At One-Second Interval

Calculate accumulated ampere hour in real-time at a one-second interval. This enables precise current consumption monitoring
and analysis, achieving goals such as energy conservation and reduced operational costs.

Irregular Status Alert

Current Threshold Alert

Set minimum and maximum current thresholds, and receive instant alarms upon threshold triggers for swift action.

Over-Current Alert

Receive instant alerts when the actual current exceeds the rated limit, accompanied by a smart LED indicator flashing every 2 seconds for swift visual confirmation of the alarm status.

Temperature Threshold Alert

An external wire temperature sensor is available, triggering alerts when the wire temperature reaches a set threshold.

temperature threshold alert
over current alert
current threhold alert
cable free deployment
lorawan
multiple antena types

Simple Cable-Free
Deployment

  • Cable-Free Deployment
  • Say goodbye to the hassle of wires. This simplifies the installation process, reduces labor costs, and allows for more flexible placement.

  • Efficient LoRaWAN® Transmission
  • By utilizing the global IoT standards of LoRaWAN®, the CT3xx enables seamless communication from electrical distribution panels across multiple stories of commercial and industrial buildings. It ensures uninterrupted wireless transmission which is also featuring strong stability, penetrability, and compatibility.

  • Multiple Antenna Types
  • CT3xx is equipped with a high-gain antenna, ensuring stable signal transmission. And the magnetic antenna is also offered as an optional choice to meed your specific needs.

Typical Application

factory

Factory

hospital

Hospital

building

Office Building

commercial

Commercial Building

Simple Installation

current transformer installation
current transformer installation step

Specifications

Electrical Measurement
Detection ParameterRMS Current
Sampling Frequency3.3 kHz
Working Frequency50~60 Hz
Rated Primary Current500 Arms
Rated Secondary Current150mA
Start Current30 Arms
Accuracy±1 %
Resolution1 mA
Temperature SensorSensor type: 1 × NTC Sensor
Measuring range: -20°C ~ 100°C
Measuring accuracy: ±1 %
Wireless Transmission
ProtocolLoRaWAN®
Antenna Connector1 × 50 Ω SMA Connector (Center PIN: SMA Female)
FrequencyCN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4
Tx Power16 dBm (868 MHz)/20 dBm (915 MHz)/19 dBm (470 MHz)
Sensitivity-137dBm
ModeOTAA/ABP Class A
Others
Button1 × Reboot Button
LED Indicator1 × Status/Alarm Indicator
Port1 × USB Type-C for Power Supply, Console or Cable Temperature Sensor Connection
ConfigurationUSB Type-C or Downlink
Physical Characteristics
Power SupplyInduced current power supply
Insulation Voltage3kVac(r.m.s)(1mA/1min)
Color/ MaterialBlue, PBT+PC (UL94 V0)
Cable Length1m
Operating TemperatureTransceiver: -20°C~70°C (-4°F~158°F)
CT Clamp: -40°C~55°C (-40°F~131°F)
Storage TemperatureTransceiver: -25°C~80°C (-13°F~176°F)
CT Clamp: -40°C~55°C (-40°F~131°F)
Relative Humidity≤ 95% (Non-condensing)
Ingress ProtectionIP30
DimensionsTransceiver: 38 × 39.7 × 16 mm (1.5 × 1.56 × 0.63 in)
CT Clamp: 65.52 × 90 × 43 mm (2.58 × 3.54 × 1.69 in)
Wire Hole: Ф 36.6 mm (Ф 1.44 in)
WeightTransceiver: 13.05 g
Per CT Clamp: 276.75 g
InstallationTransceiver: Cable-tie Mounting (under integrated mode)
CT Clamp: Suspended on the Testing Conductor

Electrical Measurement
Detection ParameterRMS Current
Sampling Frequency3.3 kHz
Working Frequency50~60 Hz
Rated Primary Current1000 Arms
Rated Secondary Current150mA
Start Current30 Arms
Accuracy±1 %
Resolution1 mA
Temperature SensorSensor type: 1 × NTC Sensor
Measuring range: -20°C ~ 100°C
Measuring accuracy: ±1 %
Wireless Transmission
ProtocolLoRaWAN®
Antenna Connector1 × 50 Ω SMA Connector (Center PIN: SMA Female)
FrequencyCN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4
Tx Power16 dBm (868 MHz)/20 dBm (915 MHz)/19 dBm (470 MHz)
Sensitivity-137dBm
ModeOTAA/ABP Class A
Others
Button1 × Reboot Button
LED Indicator1 × Status/Alarm Indicator
Port1 × USB Type-C for Power Supply, Console or Cable Temperature Sensor Connection
ConfigurationUSB Type-C or Downlink
Physical Characteristics
Power SupplyInduced current power supply
Insulation Voltage3kVac(r.m.s)(1mA/1min)
Color/ MaterialBlue, PBT+PC (UL94 V0)
Cable Length1m
Operating TemperatureTransceiver: -20°C~70°C (-4°F~158°F)
CT Clamp: -40°C~55°C (-40°F~131°F)
Storage TemperatureTransceiver: -25°C~80°C (-13°F~176°F)
CT Clamp: -40°C~55°C (-40°F~131°F)
Relative Humidity≤ 95% (Non-condensing)
Ingress ProtectionIP30
DimensionsTransceiver: 38 × 39.7 × 16 mm (1.5 × 1.56 × 0.63 in)
CT Clamp: 97.9 × 119 × 60mm (3.85 × 4.69 × 2.36 in)
Wire Hole: Ф 51 mm (Ф 2.01 in)
WeightTransceiver: 13.05 g
Per CT Clamp: 855.55 g
InstallationTransceiver: Cable-tie Mounting (under integrated mode)
CT Clamp: Suspended on the Testing Conductor

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