Repair & Overhaul

Electrical repair and overhaul for the rail industry

eTrac delivers a comprehensive range of electrical repairs, overhauls and modifications to PCBs and larger high-voltage components.

Always customer-focused, for urgent repairs we offer short lead times to minimise train waiting time in the depot.

Our preventative overhauls are designed to extend operational lifespan and increase rolling stock reliability, minimising disruption and the cost of sudden failure.

All work is carried out by our highly-skilled technicians and all repairs and overhauls use like-for-like components or better (where approved) to ensure that original functionality and performance is restored or exceeded.

Example projects:


Drive Control Unit (DCU)
DX, AX, DI units


All MITRAC equipment
Brake resistor repairs

Upgrades & modifications

LED upgrade for Driver Display Units (IDUs)
MITRAC Drive Control Unit (DCU)
Large inductor modifications
Modification of auxiliary converters

eTrac’s approach to overhaul and repair

Supporting train manufacturers and operating companies throughout the UK, eTrac’s overhaul and repair service for traction electronics includes the following key stages.

Visual check

Initial testing

(including checking past history and data)

Identifying necessary repairs

Completing repairs


Full testing

Final inspection

Labelling and recording

Overhaul includes replacing at-risk components that are most prone to age-related failure

Benefits of using eTrac

Fast turnaround of 1-21 days

More than 15 years’ experience

Quality assured

Standard one-year warranty

Technical feedback to depots and ongoing support