SKU: 3445862912

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

Sale price$1587.90 Regular price$1764.33
Save 10%

Pay in installments of $441.08 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 23 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jeremy
Carnegie, US
★★★★★ 5
Flexible and heavy duty
Size: 50-Foot, Style: 90° Locking End
Seems to be a good heavy cord
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
H
Verified Purchase
Hartman82
Lexington, US
★★★★★ 4
Grate price
Size: 50-Foot, Style: 90° Locking End
Great quality for the price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 28, 2024
S
Verified Purchase
Snider's Services
San Leandro, US
★★★★★ 5
Excellent cord
Size: 50-Foot, Style: 90° Locking End
Damn nice cord works excellent in my cargo trailer I added a furrionchill 18k btu to it and other electrical stuff stereo, compressor ect...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2025
E
Verified Purchase
Ed G.
Dallas, US
★★★★★ 5
One of the best on the market for sure.
Size: 50-Foot, Style: 90° Locking End
I bought this item to run power to my camper.  This cord is extremely well made.  Strong and durable for sure.  The locking end is definitely a must .   Would 100% recommend this item .   Length: 50 foot
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 9, 2025
A
Verified Purchase
Amy Biggs
Boise, US
★★★★★ 5
Excellent RV Extension Cord – Heavy Duty Quality and Best Value for Power Needs!
Size: 25-Foot, Style: 90° Locking End
The Camco Power Grip 25-Ft 50 Amp RV Extension Cord has been absolutely essential for our RV camping adventures! As full-time RVers who frequently encounter campground electrical pedestals that are inconveniently located, this heavy-duty extension cord has solved countless site setup challenges. The 50 amp capacity handles our RV's full electrical load including air conditioning, and the 25-foot length gives us the flexibility to position our rig exactly where we want it. What impressed me most is the exceptional build quality and safety features. The cord feels substantial and professional-grade, clearly designed to handle the demanding electrical requirements of modern RVs. The 90° locking end is genius—it keeps the connection secure and reduces strain on both the cord and the pedestal connection, which is especially important during windy conditions or when other campers accidentally bump into it. The Power Grip handles make connecting and disconnecting so much easier and safer, especially in wet conditions or when wearing gloves. The cord is rated for 125/250V and 12,500W, giving me complete confidence that it can safely handle our RV's maximum electrical demands without overheating or voltage drop issues that can damage sensitive electronics. For such a heavy-duty, professional-quality 50 amp RV extension cord with excellent safety features, the price was absolutely the best value I found anywhere. RV dealers charge much more for comparable cords with fewer features. I'm very likely to buy a second one as backup and have recommended it to fellow RVers in our camping group. This cord has made campground electrical connections so much more convenient and reliable! Solid 5 stars!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025

recommand products