Axle Counter Power Supply Unit Design

TRANSPORT FOR LONDON · awarded 1 April 2026 · delivered in London

£133k Award value £133,103
1 Supplier Recorded as a large business
3 Nov 2026 Runs until from 4 May 2026

Who

BuyerTRANSPORT FOR LONDON LONDON
Supplier Ramboll UK Limited
Categoryservices
ClassificationEngineering design services CPV 71320000
Notice published30 April 2026

What it is for

The scope involves the renewal and replacement of existing 48V DC signalling Power Supply Units (PSUs), with modern Network Rail-approved equivalents. A total of 16 PSUs are to be replaced across seven locations. These units provide essential power to axle counter evaluators controlling Up and Down lines. The works are intended to ensure the continued reliability, safety, and resilience of the signalling system in line with the Windrush Line core renewal strategy.

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