Milesight CT300 Series
Smart Current Transformer featuring LoRaWAN
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Especificaciones
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Más informaciónes
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- Report the RMS current and accumulated current data by minute
- High measuring accuracy with a sampling frequency of up to 3.3 kHz
- Self-powered, free from batteries or external wires
- Utilize a sampling rate of up to 1s for real-time monitoring and quick alarm response
- Non-invasive clamp design ensures easy and safe installation without the need for power de-energizing
- Equipped with LED indicator to indicate working status and alarms
- Support external wire temperature sensor for cable temperature measurement
- Enable simultaneous detection of three phases with a significantly wide optional detection range of 300A, 500A or 1000A
- Compliant with standard LoRaWAN® gateways and network servers
- Compliant with Milesight Development Platform
- Support Firmware Update Over the Air (FUOTA) via Milesight Development Platform
CT3xx is a LoRaWAN® Smart Current Transformer for monitoring energy consumption and analyzing usage remotely. CT3xx provides multiple current options to suit energy monitoring and supports sending threshold alarms. Its compact size enables quick and safe installation in any indoor space without de-energizing facilities, thereby simplifying the installation and saving costs. Compliant with Milesight LoRaWAN® gateway and Milesight Development Platform solution, CT3xx can be conveniently monitored via webpage remotely.
CT3xx is widely used for energy monitoring in smart buildings, machine failure detection and prevention, etc.
| Model | CT303 | CT305 | CT310 |
|---|---|---|---|
| Electrical Measurement | |||
| Detection Parameter |
RMS Current | ||
| Sampling Frequency |
3.3 kHz | ||
| Working Frequency | 50~60 Hz | ||
| Rated Primary Current |
300 Arms | 500 Arms | 1000 Arms |
| Rated Secondary Current |
150 mArms | ||
| Minimum Reporting Current* |
25Arms (1min Interval) 15Arms (10min Interval) |
30Arms (1min Interval) 19Arms (10min Interval) |
60Arms (1min Interval) 35Arms (10min Interval) |
| Accuracy | ±1 % | ||
| Resolution | 1 mA | ||
| Temperature Sensor |
Sensor type: 1 × NTC Sensor Measuring range: -20°C ~ 100°C Measuring accuracy: ±1 % |
||
| Wireless Transmission | |||
| Protocol | LoRaWAN® | ||
| Antenna Connector | 1 × 50 ? SMA Connector (Center PIN: SMA Female) | ||
| Frequency | CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4 | ||
| Tx Power | 16 dBm (868 MHz)/20 dBm (915 MHz)/19 dBm (470 MHz) | ||
| Sensitivity | -137dBm | ||
| Mode | OTAA/ABP Class A | ||
| Others | |||
| Button | 1 × Reboot Button | ||
| LED Indicator | 1 × Status/Alarm Indicator | ||
| Port | 1 × USB Type-C for Power Supply, Console or Cable Temperature Sensor Connection |
||
| Configuration | USB Type-C or Downlink | ||
| Physical Characteristics | |||
| Power Supply | 1. Induced current power supply 2. 5V by USB Type-C Port |
||
| Insulation Voltage | Insulation Voltage 3kVac(r.m.s)(1mA/1min) | ||
| Color/ Material | Blue, PBT+PC (UL94 V0) | ||
| Cable Length | 1m | ||
| Operating Temperature |
Transceiver: -20°C~70°C (-4°F~158°F) CT Clamp: -40°C~55°C (-40°F~131°F) |
||
| Storage Temperature |
Transceiver: -25°C~80°C (-13°F~176°F) CT Clamp: -40°C~55°C (-40°F~131°F) |
||
| Relative Humidity | ≤ 95% (Non-condensing) | ||
| Ingress Protection | IP30 | ||
| Dimensions | Transceiver: 38 × 34.5 × 16 mm (1.5 × 1.36 × 0.63 in) | ||
| CT Clamp: 56.5 × 36.5 × 68.5 mm (2.24 × 1.44 × 2.70 in) |
CT Clamp: 68 × 86 × 41.8 mm (2.68 × 3.39 × 1.65 in) |
CT Clamp: 97.1 × 119 × 59.5mm (3.82 × 4.69 × 2.34 in) |
|
| Wire Hole: Φ 24 mm (Φ 0.94 in) |
Wire Hole: Φ 36.6 mm (Φ 1.44 in) |
Wire Hole: Φ 51 mm (Φ 2.01 in) |
|
| Weight | Transceiver: 13.05 g | ||
| Per CT Clamp: 250 g | Per CT Clamp: 276.75g | Per CT Clamp: 855.55 g | |
| Installation | Transceiver: Cable-tie Mounting (under integrated mode) CT Clamp: Suspended on the Testing Conductor |
||
| Approvals | |||
| Regulatory | CE, FCC, UL508 | ||
* The minimum current to report data under different reporting intervals. To measure lower currents, the device must be powered via USB.
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