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Thermal faults in LV switchgear do not occur suddenly. They develop over time within busbar joints and cable terminations, often remaining undetected between inspection intervals. Without continuous visibility, these conditions can progress unnoticed until they result in equipment failure, unplanned downtime, or safety incidents.
With continuous LV switchgear thermal monitoring in place:
Eaton Exertherm CTM enables the following critical LV bus and cable terminations to be monitored simultaneously and in real-time:
Low-voltage busbar joints:
Low-voltage cable terminations:
The Eaton Exertherm LV switchgear CTM solution provides an early warning of potentially compromised LV assets before they fail, causing unplanned facility outages. The LV switchgear solution provides protection from thermal asset changes where the eye can’t see and the hands can't reach. Our unique ‘fit and forget’ 24x7 electrical infrastructure monitoring technology gives you the peace of mind that your assets are running safely.
Eaton Exertherm CTM solution are suitable for both new build and retro-fit installation, and also OEM vendor neutral.
Permanent installation
Permanently installed sensors are fit-and-forget technology that continuously monitors the temperature of critical joints or connections.
Cost efficient
Permanently installed, factory‑fitted or retrofittable, CTM sensors work around the clock and silently in the background.
Real-time data
Once installed our sensors work 24x7, 365 days a year to continuously monitor your critical electrical assets and provide condition data.
Lifetime guarantee
We're so confident with the resilience built into our technology that we provide a lifetime guarantee on our sensor hardware.
| Capability |
Continuous CTM monitoring
|
Periodic thermography
|
| Fault detection | Continuous, real-time | Snapshot at inspection |
| Visibility | Ongoing across load cycles | Limited between inspections |
| Fault development insight | Tracks progression over time | No trend visibility |
| Safety | Reduces exposure to energized equipment | Requires manual inspection |
| Response | Enables planned intervention | Often reactive |
IR sensor
For busbar temperature monitoring
EM cable sensor
Temperature monitoring for cable
terminations
Exertherm modbus datacard
Collects data from 8 x IR / EM Cable sensors
Exertherm thermal xpert 25
Panel mounted HMI
There are two connectivity options available:
Our CTM solution is designed as an OEM‑neutral approach to LV switchgear monitoring, providing continuous visibility across critical switchgear connections regardless of manufacturer. It focuses on monitoring the key connection points where thermal faults are most likely to develop, but are often difficult to detect using conventional or indirect monitoring methods.
By delivering real-time insight into temperature changes at these critical points, it enables earlier identification of developing issues and improves visibility into fault progression between inspection intervals. Suitable for both retrofit and new-build LV switchgear applications, the solution integrates easily into existing electrical infrastructure while reducing the need for interaction with energised equipment during maintenance activities, supporting safer and more controlled working practices.
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