Signet

Signalling faults can cause major disruptions and costly delays. Signet is an intelligent signalling power system that isolates faults and restores supply during failures – ensuring uninterrupted signalling performance and keeping trains running safely.

An Intelligent Singalling Powering System

Signet is a reconfigurable signalling power system that allows rail operators to maintain supply continuity during extreme fault conditions. In the event of supply failure, cable fault or theft, Signet switches the circuit open to protect the power system, then rapidly reconfigures the network to isolate the fault and ensure continuity of power supply. Once the fault has been effectively addressed, Signet returns the network to its original configuration—enabling signalling to continue effectively and minimising delays.

Ensuring Uninterrupted Train Signalling

From reconfiguring in 4 hours, to a few minutes

Since 2005, Camlin Rail has installed and commissioned over 2,500 Signets on major UK rail projects, delivering maximum signalling network availability so trains can keep running safely. When Network Rail experienced cable theft, Signet was able to automatically reconfigure its network—ensuring signalling and operations could continue without interruption.

“Camlin Rail are specialists. The team are great to work with, resolving any issues quickly and pro-actively, whilst maintaining a high level of technical support. Over the years, the value of their products has been proven – saving the business millions” – Dean Chauke, Regional Engineer for Electrification & Lines, Network Rail

Read the full case study

Signet and Network Rail case study

What Signet Delivers

Automated fault isolation

Instantly detects and isolates faulted or missing cable sections, switching the circuit open and protecting the power system.

Rapid network reconfiguration

Automatically reroutes power to restore service, minimising delays and ensuring uninterrupted signalling operations.

Real-time smart alarm reporting

Sends alarms to network management systems in real-time, empowering immediate oversight and fast response.

Flexible input options

Signet is available in 400V 3-phase or 650V single-phase versions, suitable for both IT and TN systems.

The The Benefits of Signet

Lower operational costs

Replaces labour-intensive fuse systems with automated fault isolation and power restoration, cutting maintenance expenses.

Better passenger experience

Reconfigures the network and restores power within minutes, keeping trains moving and minimising delays.

Minimal manual intervention

Resolves faults without the need for manual switching, reducing downtime and improving staff safety.

Rapid fault recovery within minutes

A proven track record with over 2,500 units deployed, approved by Network Rail and trusted across UK rail projects.

Why choose Signet?

Signet solves power supply problems in a cost effective and controllable manner by automatically restoring power to affected signals and reconfiguring the system to isolate the fault. Available in 400V 3-phase or 650V single-phase versions to suit IT or TN systems.