Milesight CT303 Self-Powered 3-Phase 300A LoRaWAN Current Transformer
SKU: 3445862912

Milesight CT303 Self-Powered 3-Phase 300A LoRaWAN Current Transformer

Sale price$1587.90 Regular price$1764.33
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Description

Milesight CT303 Self-Powered 3-Phase 300A LoRaWAN Current TransformerRevolutionize Your Energy Management Introducing the Milesight CT303, a state of the art LoRaWAN Smart Current Transformer designed for precise, real time monitoring of electrical consumption. Engineered for efficiency and accuracy, the CT303 is the ideal solution for smart building energy management, equipment performance monitoring, and predictive maintenance. Its innovative one to three design allows you to measure the electricity of up to three

Revolutionize Your Energy Management

Introducing the Milesight CT303, a state-of-the-art LoRaWAN® Smart Current Transformer designed for precise, real-time monitoring of electrical consumption. Engineered for efficiency and accuracy, the CT303 is the ideal solution for smart building energy management, equipment performance monitoring, and predictive maintenance. Its innovative one-to-three design allows you to measure the electricity of up to three different objects simultaneously, providing comprehensive insights into your energy usage patterns to foster conservation and reduce operational costs.

Effortless Installation & Unmatched Performance

The CT303 features a user-friendly, non-invasive clamp-on design that ensures safe and rapid installation without the need to interrupt power or risk circuit damage. This cable-free deployment simplifies the process, reduces labor costs, and offers flexible placement. A standout feature is its self-powered technology; the device derives energy directly from the measured circuit, completely eliminating the need for batteries and ensuring continuous, seamless operation. With a high sampling frequency of up to 3.3kHz, the CT303 delivers superior accuracy (±1%), outperforming competitors and guaranteeing unparalleled detail in your energy data.

Smart Monitoring with Instant Alerts

Stay ahead of potential issues with intelligent threshold alerts. You can set minimum and maximum current thresholds and receive instant alarms when these are triggered. The over-current alert provides immediate notification when the current exceeds the rated limit, accompanied by a flashing LED indicator for quick visual confirmation. For enhanced safety, an optional external wire temperature sensor can be added to trigger alerts when a set temperature is reached. Leveraging the power of LoRaWAN® technology, the CT303 ensures stable, long-range wireless data transmission, making it perfect for multi-story commercial and industrial buildings.

Key Features:

  • Multi-Target Measurement: Unique one-to-three design monitors up to three circuits at once.
  • Self-Powered Operation: No batteries required; powered by the measured circuit for uninterrupted service.
  • Non-Invasive Installation: Clamp-on probe allows for quick and safe setup without power interruption.
  • Superior Accuracy: High sampling frequency up to 3.3kHz provides highly detailed and precise energy tracking.
  • Real-Time Alerts: Configurable thresholds for current and temperature provide instant notifications of irregularities.
  • LoRaWAN® Connectivity: Ensures reliable long-range, low-power wireless communication for seamless IoT integration.
  • Efficient Energy Tracking: Calculates accumulated ampere-hours in real-time at one-second intervals for precise consumption analysis.

Technical Specifications

Wireless Transmission
Technology LoRaWAN®
Frequency EU868
Tx Power 16 dBm
Mode OTAA/ABP Class A
Sensor Measurement
Rated Primary Current 300A
Accuracy ±1%
Sampling Frequency Up to 3.3 kHz
Resolution 1 mA
Minimum Reporting Current 0.25A (1 min interval), 1.5A (10 min interval)
Working Frequency 50-60 Hz
Physical Characteristics
Power Supply Self-powered via induced current
Operating Temperature Transmitter: -20°C to +70°C; CT Clamp: -40°C to +55°C
Ingress Protection IP30
Wire Hole Size 24 mm
Installation Non-invasive clamp-on
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3445862912

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Stacy
Grantham, US
★★★★★ 5
Perfect fit
Model: iPadAir 8/7/6th/iPadPro 8/7th 2026/25/24
Great screen protector this one is lasted much longer than other ones. I’ve purchased without chipping. Easy to put on without any bubbles I would definitely recommend this. Fit my 2026 iPad Air 13 inch perfectly.
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Pawtucket, US
★★★★★ 4
Good protector but bubbles at install
Model: iPad 11th A16 2025/10th
This is probably the 10th or so glass screen protector I have bought and installed for reference. Compared to others I’ve used in the past, it was just as easy to install but I struggled with bubbles under the screen and I took weeks for them to come out. Works as it should, good visibility and protection, just went it was easier and quicker to install.
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Dalia
Omaha, US
★★★★★ 5
Excellent Screen Protector!
Model: iPad 11th A16 2025/10th, Model: iPad 11th A16 2025/10th
This screen protector was easy to install and fits my iPad perfectly. The screen remains clear and responsive, and it provides great protection against scratches and fingerprints. Very happy with this purchase
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gaby rosabal
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★★★★★ 5
Great quality and protection.
Model: iPad 11th A16 2025/10th
I'm really happy with this screen protector. It fits the iPad perfectly and doesn't interfere with cases. It feels very sturdy and scratch-resistant, giving me peace of mind. Definitely worth it.
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Lori K
Boise, US
★★★★★ 5
Easy set up
Model: iPad Pro 12.9 2022/2021/2020/2018
Nice product. I cracked my screen in my iPad and wanted something to keep it from getting worse
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