March 30, 2026
MSSL builds bespoke LV switchboards that maximise power capacity in tight, complex buildings that meet BS EN IEC 61439-2 and ASTA certification.
Before a bespoke panel leaves MSSL’s Leicester factory, the work begins with a detailed design review.
For manufacturers, data centres and hospitals, that review is the point at which safety, resilience and future growth are built into the low voltage assembly.
Engineers take load schedules, single line diagrams and room layouts - to develop a panel that can be installed, maintained and expanded safely in a live environment.
By coordinating with consultants, contractors and client engineering teams, proposed boards align with project specific standards, shutdown plans and on-site working practices.
All designs are tested against the latest British and international standards and independently Asta certified, with:
- Fully tested and design verified for short-circuit withstand capability
- Temperature rise
- IP rating
- Mechanical operation
- Plus all other clauses to BS EN IEC 61439-2
ASTA certified testing, issued by Intertek, is proof that low-voltage switchgear has been independently tested and verified to meet national safety standards.
At the same time, engineers address the practical constraints of existing buildings.Front or rear access, L-shaped or U-shaped layouts, top or bottom cable entry and bespoke enclosures are used to maximise available space while maintaining safe internal access for operations and maintenance teams.
Once a design is agreed, MSSL manufactures the bespoke switchboard within its purpose-built carbon neutral site in Leicestershire.
In-house metal fabrication, powder coating and copper busbar production allow MSSL to control the entire manufacturing process from quality, delivery and late-stage design refinements that often arise on complex projects.
Installation, testing and commissioning are then completed by MSSL’s site team, providing a joined-up service through design, manufacture and final handover on site.
MSSL’s integrated approach has supported critical infrastructure projects across the UK. These include manufacturing facilities, healthcare estates, universities and data centre sites.
