Sourcing an outdoor enclosure for power factor correction (PFC) is a major challenge. These compensation cabinets must perform two conflicting tasks: they must be completely weatherproof to protect sensitive controllers, but they must also dissipate the high heat generated by capacitor banks and reactors. Using a standard, fully sealed NEMA 4 box will lead to overheating and catastrophic component failure.
MechStream now offers the complete fabrication drawing for a purpose-built Outdoor Compensation Cabinet, specifically dimensioned at 900mm(W) x 1200mm(H) x 450mm(D). This is not just a standard enclosure; it is an engineered solution. Our professional blueprint provides the precise layout for a NEMA 3R / IP54 design.
The design is engineered to solve the heat problem. It features strategically placed, louvered, and filtered ventilation to allow for passive air convection, keeping your capacitor banks cool while still protecting them from driving rain, snow, and dust. The plan also includes a sloped-top “rain hood” (drip shield) and a secure, gasketed, multi-point locking system.
By downloading our free CAD and PDF files, you get the exact plans to build a robust, reliable, and perfectly sized cabinet for your PFC system, saving you the high cost and long lead times of custom commercial models.
Key Features:
- Specific Dimensions: Precisely designed to 900mm (Width) x 1200mm (Height) x 450mm (Depth) for a specific footprint.
- NEMA 3R / IP54 Weatherproof Design: Features a gasketed door and louvered vents engineered to protect against falling rain, sleet, and external dust.
- Integrated Rain Hood: The design includes a sloped-top drip shield that overhangs the door, preventing water from pooling on the gasket.
- High-Flow Ventilation: Includes cutouts for filtered, louvered vent panels, essential for dissipating heat from capacitor banks and reactors.
- Heavy-Duty Mounting: Specifies a reinforced back panel for secure wall-mounting or optional floor/pad-mount plinth integration.
