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Product Detailed Parameters
- Description：Smart Current Transformer
- Series：LoRaWAN®
- Mfr：Milesight
- Package：Retail Package
- Frequency Range：50Hz ~ 60Hz
- Type：Non-Invasive (Split Core)
- Inductance：-
- ET (Volt-Time)：-
- Current Ratio：-
- DC Resistance (DCR)：-
- Ratings：-
- Mounting Type：Free Hanging (In-Line)
- Size / Dimension：2.580" L x 1.690" W (65.53mm x 42.93mm)
- Height - Seated (Max)：3.540" (89.92mm)
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：-
- Current Rating (Amps)：500 A
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Overview
The Milesight CT305-US915 is a LoRaWAN-enabled smart current transformer designed for non-invasive energy monitoring. Operating on the US915 frequency band, it supports three-phase current measurement with a maximum rating of 500 A per phase. The device utilizes energy harvesting technology to power itself from the monitored circuit, eliminating the need for external batteries or wiring. It provides real-time RMS current data and accumulated amp-hours, enabling precise energy consumption tracking in industrial and commercial settings.
Feature Summary
- Self-powered via energy harvesting from the monitored conductor
- Non-invasive clamp-on installation for existing electrical infrastructure
- LoRaWAN connectivity for long-range wireless data transmission
- Real-time RMS current monitoring with threshold alarm capabilities
Applications
- Smart building energy management systems
- Industrial machine failure detection and prevention
- Circuit monitoring for collecting current values and accumulated amp-hours
- Remote energy monitoring in hard-to-reach locations
Procurement Notes
Verify that the US915 regional variant matches local regulatory requirements for unlicensed spectrum usage. Confirm compatibility with existing LoRaWAN gateways operating on the same frequency plan. Ensure the monitored conductor diameter fits within the clamp's aperture. Check if the specific model suffix indicates any hardware revisions affecting mounting or calibration.
Selection Notes
Select this model when non-invasive installation is required for three-phase circuits up to 500 A. Choose the US915 version specifically for deployments in regions requiring compliance with North American ISM band regulations. Consider energy harvesting capability as a key advantage for maintenance-free operation in remote sites where battery replacement is impractical.
Part Context
The CT305 belongs to the Milesight CT3xx series of LoRaWAN smart current transformers. This family includes variants like the CT303 and CT310, offering different current ratings and form factors. The CT305 specifically targets high-current three-phase applications, distinguishing it from single-phase models in the lineup while sharing common LoRaWAN protocol support.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official Milesight channels for cross-reference information regarding discontinued or alternative models.
