MCCB-ACB-VCB Breaker Switchgear Servicing
Power Continuity provides specialist, all-make LV switchgear and breaker servicing (ACB, MCCB, and VCB) to keep your critical power infrastructure safe, operational, and fully compliant. From preventative maintenance and thermal imaging to emergency on-site repairs, our fully qualified engineers help facilities eliminate the risk of catastrophic electrical failure and unexpected "nuisance tripping."
Power Continuity Switchgear Servicing At A Glance:
All-OEM Coverage: Expert maintenance for all major circuit breaker makes and models, including Masterpact, Schneider, ABB, and Siemens.
Comprehensive Servicing: Specialized technical support covering Moulded Case (MCCB), Air (ACB), and Vacuum (VCB) circuit breakers.
Preventative & Predictive: Integrated thermal imaging inspections to identify hidden electrical hot spots before they cause downtime.
Compliance Ready: Full, detailed engineering reports provided after every site visit to satisfy regulatory and insurance requirements.
Power Continuity are specialists in all aspects of LV Service on LV Switchboards, Air Circuit Breakers (ACB), Moulded Case Circuit Breakers (MCCB), and Vacuum Circuit Breakers (VCB). Switchgear preventative servicing, together with on-site repairs and replacement upgrades, protects your operations against sudden operational loss.
Technical Maintenance Framework
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Air Circuit Breaker (ACB) Servicing & Reconditioning
Air Circuit Breakers are the frontline protectors of high-current electrical distributions. Our technical maintenance framework ensures your ACBs function flawlessly when a critical fault occurs:
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Detailed inspection, cleaning, and alignment of secondary wiring and primary contacts.
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Removal, thorough cleaning, and detailed assessment of internal arc chutes—a vital safety component within all heavy-duty switches.
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Lubrication of complex mechanical racking mechanisms using specialized electrical-grade compounds.
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Comprehensive secondary injection testing to verify electronic trip unit functionality and response times.
Moulded Case Circuit Breaker (MCCB) Maintenance
A build-up of unmonitored dirt and grease within an MCCB happens completely out of sight. Without routine maintenance and technical cleaning, it inevitably leads to mechanical failure, insulation breakdown, or costly replacements. Our MCCB servicing includes:
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Corrective Maintenance: Resolving underlying calibration and hardware issues before they manifest as operational faults.
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Preventive Maintenance: Maintaining mechanical performance well ahead of the equipment's lifecycle curve.
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Predictive Maintenance: Identifying and replacing worn interior components prior to failure.
Vacuum Circuit Breaker (VCB) Testing
To ensure the smooth and accurate mechanical functioning of a Vacuum Circuit Breaker (VCB), specialized servicing combined with highly specific lubrication schedules is absolutely mandatory. Our engineering teams perform vacuum integrity checks, insulation resistance profiling, and contact wear threshold measurements to guarantee safe deployment under severe fault conditions.
Recommended Switchgear Maintenance Intervals
Panel manufacturers strongly recommend having Moulded Case Circuit Breakers (MCCBs) and Air Circuit Breakers (ACBs) fully inspected and serviced at least every 12 months. However, operational load and environment dictate more rigorous frequencies. Use a clean, mobile-responsive table widget to display this data:
| Facility / Industry Type | Recommended Service Interval | Core Focus Areas |
|---|---|---|
| Data Centres & Telecoms | Every 6 Months | Contact wear tracking, rapid trip timing verification, thermal profiling. |
| Hospitals & Healthcare Facilities | Every 6 Months | Secondary injection testing, discrimination verification, system reliability checks. |
| Production & Manufacturing Plants | Every 6–12 Months | Environmental grime/grease extraction, mechanical clearing, arc chute testing. |
| Commercial Offices & Public Sector | Every 12 Months | Mechanical components lubrication, insulation resistance testing. |
We pair every physical service check with advanced Thermal Imaging Surveys to complete inspections to the absolute highest tier of industrial quality control.
Switchgear Maintenance FAQs
Is regular circuit breaker servicing a legal requirement in the UK?
Yes. Under the Health and Safety at Work Act 1974 and the Electricity at Work Regulations 1989, building operators and employers are legally required to maintain electrical systems in a safe condition. Neglecting routine switchgear servicing can completely invalidate commercial property insurance policies and result in severe regulatory penalties if an avoidable failure occurs.
What is "nuisance tripping" and how does servicing prevent it?
Nuisance tripping happens when an unmaintained breaker becomes over-sensitive to standard site load surges, prompting sudden, unexpected site power drop-outs. This is commonly caused by a hidden accumulation of dust, dried factory lubricants, or drifting calibration inside the mechanical trip apparatus. Regular cleaning, component balancing, and fresh lubrication prevent these operational interruptions.
Can switchgear servicing be completed live, or does it require a shutdown?
While specific diagnostics—such as thermal imaging surveys—must be executed while the switchboard is live and functioning under standard load, a full mechanical breakdown service, arc chute inspection, and technical reconditioning require a planned isolation or shutdown to guarantee complete engineer safety.
Need Competitively Priced, High-Spec Breaker Servicing?
We will beat any genuine written quotation cost — Get it done RIGHT the first time.
Call the Power Continuity team directly on 0845 055 8455 or email us at sales@powercontinuity.co.uk