⚡ Non-invasive and self-powered current monitoring
📊 Measures real-time RMS and cumulative current
🚨 Threshold-based over/under current alerts
🔋 Energy harvesting from the monitored circuit
📡 LoRaWAN® wireless communication – Class A
📖 Description
The Milesight CT310 is a LoRaWAN® smart current transformer designed for real-time, high-accuracy current monitoring in both single-phase and three-phase electrical installations. With a maximum supported current of 1000 A, it enables non-intrusive, clamp-on measurement without interrupting the power supply.
The CT310 is self-powered, harvesting energy directly from the current it measures, and features LoRaWAN® Class A support for long-range, low-power wireless communication. It provides real-time RMS values, cumulative ampere-hour measurements, and configurable alarms for over-current and under-current detection.
🔧 Features
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⚡ Current Range: 0 – 1000 A RMS
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📈 Sampling Frequency: 3.3 kHz
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🧮 Accuracy: ±1% (typical)
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🔍 Resolution: 1 mA
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⏱️ Data Reporting: Real-time RMS (1s) & cumulative Ah (1min)
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🔋 Power Supply: Self-powered from measured circuit or USB Type-C
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🛠️ Mounting: Clamp-on design for easy installation
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🌐 LoRaWAN®: Class A, EU868 (and other regions)
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📦 Enclosure: IP30 rated
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🌡️ Operating Temp: –20°C to +70°C (sensor head up to 55°C)
📂 Product Downloads
🎥 Product Video
Model | Milesight CT310 |
Current Range | 0 – 1000 A RMS |
Measurement Method | Clamp-on (non-invasive) |
Sampling Frequency | 3.3 kHz |
Accuracy | ±1% (typical) |
Resolution | 1 mA |
Measurement Interval | RMS: every 1 s Ah: every 1 min |
Power Supply | Self-powered from current loop or USB Type-C |
LoRaWAN® Protocol | v1.0.3, Class A |
Frequency Band | EU868 (default), configurable for other regions |
Communication Range | Up to 15 km (ideal conditions) |
Antenna | External SMA antenna |
Configuration | USB Type-C via Milesight Toolbox |
Alarm Functions | Over/under current alarms, optional cable temp sensor |
Installation | Clamp-on design, tool-free |
Ingress Protection | IP30 |
Operating Temperature | −20°C to +70°C (Clamp: max 55°C) |
Storage Temperature | −40°C to +85°C |
Dimensions | Depends on clamp size (60A/100A/250A/600A/1000A) |
Certifications | CE, RoHS, LoRa Alliance Certified |