Give yourself some Grace with 24/7 hot spot monitoring
Electrical failures rarely happen without warning – the signs are just easy to miss. The Grace HSM (Hot Spot Monitor) is designed to catch those warning signs early, by continuously monitoring temperature at critical electrical connections.
Instead of relying on periodic inspections or inaccessible infrared scans, HSM keeps watch around the clock, identifying hot spots before they turn into failures, shutdowns, or costly downtime.
Why hot spots matter
Current flowing through electrical connections – lugs, terminals, breaker stabs, and busbar joints – is one of the most common causes of electrical hot spots. Add fluctuating loads or high harmonics, and the risk increases further.
Many of these problem areas sit deep inside equipment, out of reach for infrared thermography.
That’s where HSM comes in.
Built for real-world installations
Grace HSM uses non-conductive fibre temperature probes that securely piggy-back onto existing bolted connections. These probes can be installed on known heat-risk points such as busbars, breaker connections, transformers and bus ducts, without introducing electrical risk.
The system works on any voltage level, making it suitable across low, medium, and high-voltage environments.
How Grace HSM helps your team
| Continuous temperature monitoring with configurable alarms | Early identification of developing hot spots | Better maintenance planning and fewer unplanned shutdowns |
| Safe access to temperature data from inaccessible connections | Reduced risk during inspection and fault-finding | All temperature data and alarms can be viewed and retrieved safely via the GraceSense™ Web Utility Interface, with integration options including MODBUS TCP/IP and EtherNet/IP™. |
Where HSM is commonly applied
| LV / MV switchgear | MCCs and drives | Motors, generators, and dry-type transformers | Load break and transfer switches |
| Bus ducts and busbar connections | DC switchgear and drives | Large UPS batteries and inverters | High-current junction boxes |
Simple to install, easy to integrate
The HSM module mounts neatly on DIN rail inside the low-voltage or control compartment. Fibre probes are attached to existing bolted connections at known heat points, then routed back to the module. From there, users can configure thresholds, monitoring intervals and alarms, either locally or across the plant network.
Speak to Lasrust Enterprises to find out how Grace HSM can help you detect problems early, plan maintenance better, and protect your electrical assets year-round.
