Source: https://tendernation.io/opportunities/01a13d15-b0be-733f-baaf-c575f468c013/axle-counter-power-supply-unit-design awarded GB restricted procedure Suitable for SMEs # Axle Counter Power Supply Unit Design [Transport for London](https://tendernation.io/buyers/transport-for-london) Estimated value £133,104 to £146,414 Published 30 Apr 2026 Deadline Closed 22 Oct 2025 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender 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. ## CPV classification Engineering design services Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/001cf81b-5232-4d78-a0c7-4b8ab05f7658) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Transport for London: past awards and live tenders](https://tendernation.io/buyers/transport-for-london) [Sector More Architecture, engineering & surveying tenders](https://tendernation.io/sectors/architecture-engineering-surveying) ## More tenders like this [Asbestos Management Framework · Home Group · 25 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a15476-5fff-736e-ae2e-0c8a400c7297/asbestos-management-framework) [Infrastructure works consultancy services – Contrôle extérieur des chaussées · Collectivité européenne d Alsace · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-1730-733b-8247-a32bbbe2211c/france-infrastructure-works-consultancy-services-controle-exterieur-des-chau) [Architectural, construction, engineering and inspection services – Single Party Framework Agreement for Architect Led Integrated Design Team Services for Fire Safety Remediation Works for Dublin City Council · Dublin City Council · 5 days left · 23 Oct 2026](https://tendernation.io/opportunities/01a15183-0a15-7156-849b-5a223dd6d615/ireland-architectural-construction-engineering-and-inspection-services-sin) [Architectural, construction, engineering and inspection services – Būvprojekta izstrāde un autoruzraudzība fasādes siltināšanai kārtās Dzirciema ielā 16, Rīgā – 1.kārta, C korpuss · Rīgas Stradiņa universitāte · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15183-3915-73d1-83e6-c378f9f7a926/latvia-architectural-construction-engineering-and-inspection-services-buvp) [Technical assistance services – Suivi et gestion de chantiers de réhabilitation de sites pollués · SPAQuE · 15 days left · 3 Nov 2026](https://tendernation.io/opportunities/01a15183-155e-73c2-a593-9e17375422ac/belgium-technical-assistance-services-suivi-et-gestion-de-chantiers-de-rehab) [Engineering design services for the construction of civil engineering works – Dokumentace pro povolení záměru stavby č. 9567 Radlická radiála JZM - Smíchov; v úseku MÚK Bucharova – MÚK Jinonice · Hlavní Město Praha · 15 days left · 3 Nov 2026](https://tendernation.io/opportunities/01a15183-0c15-72b2-bb19-c3ab1550e67e/czechia-engineering-design-services-for-the-construction-of-civil-engineering)