Electrical & Power Systems
UK manufacturers and installers of switchgear, MCCs, power distribution, electrical panels, transformers, UPS systems and industrial electrical services.
Categories in this group
24 totalSwitchgear, MCCs, power distribution and electrical panels
Electrical & Power Systems covers the UK manufacturers, panel builders and installers of LV and MV switchgear, motor control centres (MCCs), power distribution, transformers, UPS systems and bespoke electrical panels - plus the contractors who install and commission them on industrial sites.
- You're specifying switchgear, MCCs or distribution boards for a new build or upgrade
- You need bespoke electrical panels designed and built to IEC or UL
- You need transformers, UPS or power conditioning for a sensitive load
- You need site-based electrical installation, commissioning or maintenance
- Standards compliance - IEC 61439, BS 7671, IEC 60439, UL for export
- Form of separation and short-circuit ratings appropriate to your spec
- Preferred component brands (ABB, Siemens, Schneider, Eaton, etc.)
- Site capability - HV/LV qualifications, ECS, NICEIC, JIB
How to buy electrical & power systems
Power, control panels, switchgear and HV / LV distribution sit at the intersection of regulation, safety and very long lead times. Plan early, specify tightly.
- 01Define electrical load and growth
Capture present load, future load, harmonics, power factor and any motor starting needs before specifying the system.
- 02Choose the right standards
BS 7671, BS EN 61439 for assemblies, IEC 61850 for substation automation, ATEX where relevant. Standards drive design, not the other way round.
- 03Specify protection and selectivity
Protection grading, selectivity studies, arc-flash assessment and earthing strategy should be in the spec, not a future add-on.
- 04Plan FAT, SAT and commissioning
Factory acceptance, on-site testing, energisation procedure and witnessed commissioning are all gated, paid milestones.
- 05Lock as-built and spares
Schedules, single-line diagrams, settings sheets and a critical spares list should ship with the system, not be requested later.
Categories in this group
Browse one sub-category at a time - 24 categories across 1 section.
Services offered in Electrical & Power Systems
The service lines suppliers in this category typically deliver.
Standards and accreditations to look for
These are the third-party certifications buyers commonly ask suppliers in this category to hold. Industrial Connected Verification is a separate check of company identity and credentials, and approved certifications uploaded by a supplier also contribute towards their Trust Score.
Baseline quality system for panel builders and contractors.
Standard for low-voltage switchgear and controlgear assemblies.
North American panel build standard for export.
UK wiring regulations.
Site personnel competence and electrical contracting approvals.
Hazardous area design and installation.
Lead times in Electrical & Power Systems
A realistic starting point for planning. Actual lead times depend on volume, material availability, finishing, inspection requirements and current supplier load. Confirm in writing on every quote.
Panels typically 6 to 14 weeks from order, longer for switchgear with long-lead breakers. Site installation scheduled around plant shutdowns.
How to vet a electrical & power systems supplier
Run through this checklist with any candidate supplier before awarding work. If they cannot evidence an item, treat it as a risk to manage, not an assumption to ignore.
- Panel assembly certified to BS EN 61439 with type-tested designs.
- Authorised partner status for the switchgear and protection relays you specify.
- In-house test capability for HV, primary and secondary injection.
- ICP (Independent Connection Provider) or DNO approval for any grid-side work.
- Aftercare contract with response SLA for energised equipment.
- Quality system certified and audited (ISO 9001 minimum, sector standards where required).
- Two reference customers in your sector willing to take a call.
- Insurance, IP and NDA position confirmed in writing before sharing drawings or data.
- Commercial terms agreed: payment terms, currency, retention, delivery Incoterms.
Common mistakes buyers make in Electrical & Power Systems
The avoidable issues we see most often, with the one-line fix that prevents them.
Kinds of suppliers in this category
The supplier profiles you will typically meet when sourcing in Electrical & Power Systems.
IEC 61439 and UL 508A panels and MCCs for OEMs and end users.
Authorised partners for ABB, Siemens, Schneider, Eaton.
Site install, test and commissioning teams with NICEIC and ECS qualifications.
Design, supply and maintain UPS, harmonic filters and PFC equipment.
Example projects in Electrical & Power Systems
Representative briefs and scopes buyers post in this category.
Buyer & supplier guidance
- Single-line diagram and load schedule
- Standard reference (IEC 61439, UL 508A, BS 7671)
- Preferred component brands and any client-specific standards
- Site conditions, IP rating, ambient and form of separation
Panels typically 6 to 14 weeks from order, longer for switchgear with long-lead breakers. Site installation scheduled around plant shutdowns.
- Long-lead components (breakers, transformers) and bought-out items
- Type-test reports for assemblies above 800A
- Factory acceptance testing (FAT) before dispatch
- Site safety - permit-to-work, isolations, HV switching
- List panel build standards, form of separation and short-circuit ratings
- State component brand partnerships and stocked range
- Show site capability and qualifications for installation
- Reference completed projects with sector and rating
- Panel build standards and ratings
- Component brand partnerships
- Site installation, commissioning and maintenance
- FAT, SAT and validation reporting
Buyer FAQs for Electrical & Power Systems
IEC 61439-1/2 is the default for industrial LV assemblies in the UK and EU. UL 508A applies for export to North America. State both if you ship globally.
Switchgear distributes power between circuits and protects against faults. MCCs centralise motor starters, drives and control - useful where you have many motors in one place.
Many UK panel builders offer site installation and commissioning, especially for full MCCs. For larger projects, a separate electrical contractor often handles installation.