CNC Adapter Retrofits: Masterpact M / NW to MTZ — 800A to 3200A
We've fully developed CNC adapter solutions for replacing ageing Masterpact M and NW breakers with the latest MTZ platform — no panel modification required from 800A to 3200A.
Specialist electrical engineering — VSD replacement, PLC systems, ACB retrofitting, ATS repair, switchboard modification. Not general maintenance. The job others turn away.
The jobs general contractors turn away — the VSD nobody can diagnose, the PLC migration with no documentation, the ACB without a drop-in replacement. That's where we start.
We replace VSDs across all major brands for cranes, hoists, cryogenic pumps, and industrial fans. When standard panel enclosures don't exist, we fabricate custom VSD panels to spec — including offshore-rated builds deployed internationally.
Custom PLC solutions built without dependency on SCADA systems. We handle full machine migrations from obsolete controllers, trace starter and control circuit faults from first principles, and deliver working systems with proper documentation.
Our fully developed CNC adapter series covers Masterpact M → NW → MTZ retrofits from 800A to 3200A, plus C801 to NS800 transition solutions. CNC-machined adapters mean the new breaker drops straight into the existing cradle — minimum downtime, no panel modification, full MTZ compliance.
Most contractors replace the entire ATS controller on failure. We diagnose at the component and circuit level, which means faster resolution and lower cost when the fault is traceable. We only recommend full replacement when repair genuinely isn't viable.
Custom switchboard extensions and busbar modifications, sized and modelled in full 3D CAD before a single piece is cut. This eliminates fit-up surprises during installation and gives clients a visual sign-off before fabrication begins.
For clients planning a capacity increase or simply unsure what they're consuming — we hook up metering on-site, monitor usage patterns over the study period, analyse max demand, and deliver a formal energy demand study report. The essential step before any tariff upgrade or load expansion.
VSD servicing and preventive maintenance across all major brands. UPS battery replacement and system health checks. General electrical installation, fault-finding, and repair for industrial and commercial facilities — backed by the same first-principles approach we apply to specialist work.
Critical electrical failures don't wait. When specialist knowledge is needed on-site, we deploy.
Deployed to fault-find and restore a tunnel thruster soft starter. On-site diagnosis, repair, and commissioning to return the vessel to service.
VSD panel fabrication on a live LNG storage vessel offloading to a coastal power plant. Offshore conditions, critical infrastructure.
Alongside specialist work — not the headline, but part of every engagement.
Every job diagnosed at system level before anything is ordered, cut, or installed.
Describe the issue. We'll tell you honestly if we can help and how we'd approach it — no commitment required.