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Weimiao Delivers Industrial Control Cabinet for Water Treatment Plant Machine Room

Weimiao designed and delivered a custom PLC control cabinet for a municipal water treatment plant.

Built for the main machine room, the cabinet integrates international-grade electrical components with IP-rated sheet metal housing—engineered for high humidity and continuous operation. It supports automation of flow regulation, pump control, and system safety with UL-compliant wiring and smart internal routing.

Equipped with International-Grade Electrical Components


To ensure maximum reliability and global compliance, the cabinet incorporates a wide range of world-class electrical components from leading manufacturers, all selected for their robustness, certification, and compatibility with PLC automation systems.


Key components include:


  • Mitsubishi FR-A840 Inverter – advanced frequency control for motor-driven systems

  • ABB SACE Circuit Breakers – overcurrent and short-circuit protection

  • ABB Isolators and Disconnectors – for safe equipment maintenance

  • ABB TA Series Breaker Protectors – thermal and magnetic trip protection

  • ABB AC Contactors & Thermal Overloads – for start-stop motor control

  • Temperature Monitoring Relay – to prevent overheating in high-load circuits

  • Phoenix Contact Terminal Blocks – modular wiring and safe signal connection


All components are professionally installed inside the enclosure, with UL-standard wire terminations, fire-retardant ducts, and clearly labeled terminal rows for on-site wiring simplicity.


Built by Weimiao – From Sheet Metal Fabrication to System Integration


As with every Weimiao project, this cabinet was 100% custom-designed and fabricated in-house at our ISO 9001:2015 certified facility. We applied our end-to-end capabilities—from sheet metal cutting to final wiring—to deliver a turnkey solution that reduces on-site workload and ensures immediate operability.


Cabinet design highlights:


  • IP-rated, powder-coated enclosure suitable for industrial humidity

  • Optimized internal space for VFD, MCC, and thermal control zones

  • Laser-cut panels, CNC-bent frames, and reinforced base plates

  • Pre-mounted DIN rails, busbar supports, and terminal labeling

  • Structured cable pathways with separation between power and control circuits


All equipment is subject to our multi-stage QA process, including high-voltage testing, thermal simulation review, and electrical insulation checks—ensuring long-lasting performance and operator safety.


Full Engineering Support and International Installation Readiness


Weimiao provided full technical support throughout the project lifecycle, including:


  • Design consultation based on the client’s electrical schematics

  • 3D layout validation and installation compatibility review

  • Assembly drawings and terminal block layout documents

  • Pre-labeled wiring, BOM traceability, and UL-compliant documentation

  • Shock-proof export packaging and real-time video guidance for installation teams


This project reflects Weimiao’s continued commitment to supporting global water infrastructure projects with custom automation cabinets that combine industrial strength, intelligent wiring, and top-tier components.

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