MRD Rail Technologies
(+61) 7 3821 5151
MRD Products

Products by MRD

Reliable Earth Leakage Detection

Significantly reduce the risk of failure due to earth leakage faults

ELD provides constant monitoring and instant notifications of threshold breaches


Track the cause of fault using fault time log


Flexible channels monitor AC or DC busbars


Remote monitoring and logging of earth insulation


Detect and remove faults before problems occur


View Test Results on Screen

Earth Leakage Detector 100% is designed and manufactured in​ Australia

The interlocking circuits in railway signalling are often supplied from a battery in which neither of the poles are connected to earth.

In the event of a single fault there is no danger, however, two or more faults occurring at the same time could create a dangerous situation. Therefore it is vitally important to supervise the battery supply continuously to prevent this from happening.

Cables which run in parallel with AC electrified railways are subjected to induced voltages

If an earth leakage occurs in the cable, these voltages can disturb devices which are connected to both cables. When earth faults occur in both supply and return wires yet another hazardous condition is created.

3D Viewer

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Our products are trusted by

RelayDoc is a product of MRD Rail Technologies

Who are we?

MRD Rail Technologies have been a specialist in the design and manufacture of condition monitoring products since 1991. We have supplied rail networks around the globe with cutting-edge solutions which were designed and manufactured in-house. This allows us a lot of freedom to be creative and innovate, while carefully controlling important factors like cost, quality and lead times.

With an invested focus in the field of asset condition monitoring, our products include rail signalling test and measurement equipment, automatic relay testers, passenger information systems, AWS equipment and more.

The MRD Team have passion and expertise for developing innovative hardware and software solutions that change the way the railway industry approaches network reliability and maintenance. Our products make it simpler for remote operators to monitor the condition of crucial track machinery and obtain the information they need to make timely maintenance decisions based on both exact,and predicted, condition.

Industries that benefit from the use of MRD products

MRD Earth Leakage Detector

Without Earth Insulation Monitoring, floating IT systems are just a false sense of security for your personnel and system.


Phone (+61) 7 3821 5151


235 South Street, Cleveland, Queensland 4160 Australia
MON-FRI 09:00 - 17:00,