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MCCB, Section Board & Distribution Board Installations

Bespoke Distribution Boards & Section Boards. 125A to 630A.

At QUEST Electrical, we specialise in the design, supply, installation, replacement and upgrade of MCCB distribution boards, section boards, three-phase distribution boards, TP&N distribution boards and commercial electrical distribution boards for industrial and commercial facilities. We supply and install bespoke distribution boards and section boards ranging from 125A to 630A, providing safe, reliable and fully compliant power distribution solutions.

Whether you require a new distribution board as part of a new installation, an upgrade to increase capacity, or the replacement of an ageing or non-compliant board, our experienced engineers deliver installations with minimal disruption to your operations.

Distribution boards and section boards are a critical part of every electrical installation, ensuring the safe distribution and protection of electrical circuits throughout your building. We carefully plan every installation, including temporary supplies, phased changeovers and planned shutdowns where required, helping to minimise downtime and maintain business continuity.

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MCCB, Section Board & Distribution Board Installations
NICEIC Approved Contractor
SafeContractor Approved
Facilitiesline
125A–630A Distribution
Tested & Certified to BS 7671

Distribution Installations

MCCB-protected section boards and three-phase distribution boards, installed with the submain cabling and containment that feeds them.

Newly installed section board in a manufacturing facility 630A Section Boards
Three-phase distribution board with MCCB and MCB protection Three-Phase Distribution Boards
MCCB isolator with large submain cable terminations MCCB Protection & Isolation
Submain cabling entering a section board in a factory Submain Cabling & Containment
Section board being fitted out within an operational production site Installed in Operational Sites

Case Studies

Additional distribution capacity for new production machinery, delivered around a live manufacturing environment.

630A section board installed for new production machinery

QUEST installed 2 x 630A section boards complete with parallel feeds, creating dedicated electrical distribution points for the new production machinery – integrated with the site's existing LV infrastructure.

Injection Moulding Company

630A section board installation – new production machinery

View Case Study

Capacity for New Machinery

Factories & production facilities

New MCCB-protected section boards and three-phase distribution boards, together with large SWA submain cabling, cable ladder, tray and containment.

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Upgrading Ageing Infrastructure

Warehouses & commercial buildings

Older distribution boards and section boards often have limited spare capacity. We assess the existing installation and design the upgrade around the site.

Discuss your site
View All Case Studies

Frequently Asked Questions

What is an MCCB and where is it used?

An MCCB (Moulded Case Circuit Breaker) provides protection and isolation for larger electrical circuits. MCCBs are commonly used in industrial and commercial electrical installations to protect submains, section boards, machinery, plant and other high-load equipment.

What is a section board?

A section board distributes larger electrical supplies to multiple outgoing circuits, typically protected by MCCBs. They are widely used in factories, warehouses, manufacturing facilities and commercial buildings where several large three-phase supplies are required.

When should a commercial or industrial distribution board be upgraded?

A distribution board upgrade may be required when equipment is ageing, additional circuits are needed, spare capacity is limited or new machinery and electrical loads are being installed. The existing installation should be assessed before determining the most suitable upgrade.

Can QUEST install new submains with a section board or distribution board?

Yes. QUEST can provide the complete installation, including section boards, distribution boards, MCCBs, SWA and large submain cabling, cable ladder, tray, containment, isolation, testing and commissioning.

Can a new distribution board provide capacity for future expansion?

Yes. Where practical, new industrial and commercial distribution boards and section boards can be designed with spare ways and capacity for future equipment, helping accommodate additional machinery, plant or electrical circuits as a site develops.

Do you install MCCBs, section boards and distribution boards in operational sites?

Yes. QUEST regularly carries out industrial and commercial electrical installations within operational facilities. Works can be carefully planned around production and site requirements, with shutdowns and electrical isolations coordinated where necessary to minimise disruption.

Resources

Compliance Guide

Industrial and commercial electrical distribution – compliance explained.

View guide

Technical Guide

Designing and installing MCCB, section board and distribution board systems.

View guide

Technical Data Sheet

Industrial and commercial LV distribution at a glance.

View datasheet

Site Survey

Have your existing distribution and spare capacity assessed.

Request a survey

News & Articles

Recent Industrial & Commercial Electrical Distribution Installations

A range of MCCB, section board and distribution board installations across industrial and commercial sites, alongside large submain cabling and containment.

Read More

Demand Grows for Custom Main Panel Builds and LV Switchgear

As industries ramp up electrification, demand for bespoke panel builds is rising sharply.

Read More

Commercial & Industrial EV Charging Installations

Larger EV charging installations often need new distribution boards, MCCBs and submain cabling behind the chargers.

Read More
More News

Our MCCB, Section Board & Distribution Board Services

  • Design, supply and installation of bespoke MCCB distribution boards, section boards, TP&N distribution boards and three-phase distribution boards ranging from 125A to 630A
  • New distribution board and section board installations for commercial and industrial developments
  • Distribution board, section board and panel upgrades and replacements
  • Main and sub-distribution board installations
  • MCCB, MCB, AFDD and RCBO protection systems
  • Type 2 and Type 1+2 Surge Protection Device (SPD) integration
  • Metering and energy monitoring systems
  • Load balancing and circuit redistribution
  • Additional ways and distribution board extensions
  • Sub-main cable installations and new distribution circuits
  • Distribution board and section board labelling and circuit identification
  • Testing, inspection and certification to BS 7671
  • Planned shutdowns and phased changeovers where required
  • Thermal imaging inspections and preventative maintenance
  • Fault finding, repairs and remedial works on existing distribution boards and section boards

Why Choose QUEST Electrical?

  • NICEIC Approved Contractor delivering compliant commercial and industrial electrical solutions
  • Experienced engineers providing safe and reliable power distribution installations
  • Complete electrical solutions from design and installation through to testing, commissioning and certification
  • Bespoke distribution solutions designed around your site's electrical demands and future requirements
  • Specialist experience installing MCCB distribution boards, section boards and TP&N distribution boards
  • Capable of delivering distribution solutions ranging from 125A to 630A
  • Experienced in upgrading existing electrical infrastructure while minimising disruption to operational sites

Whether you require a 125A distribution board, a 250A section board, a 400A MCCB distribution board, or a 630A panel board upgrade, QUEST Electrical has the expertise to design, install and commission safe, reliable and future-proof power distribution solutions for commercial and industrial applications.

Running Out of Capacity?

Talk to our engineers about new machinery, additional circuits or an ageing distribution board, and we will assess your existing installation.

Contact Us

Accreditations

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