ST343 Heavy-Duty Dual U-Shape Mild Steel Electrical Project Enclosure

The SUNeMALL ST343 is an industrial-grade, factory-direct electrical project enclosure engineered specifically for electronics hobbyists, laboratory hardware prototyping, terminal blocks, and custom DIY electronic controllers. Utilizing a rugged interlocking framework, the ST343 delivers maximum physical asset protection and exceptional durability at an economical factory-direct price point.

🎨 Industrial Finish & Color Configuration:

Differentiate your benchmarking gear, laboratory modules, or workbench stacks. This chassis features a dual-material texture layout:

• Black Mild Steel Body Framework: Coated in an industrial-grade, protective painted finish across both U-shaped steel segments to prevent oxidation, resist impacts, and easily withstand continuous daily wear.

📐 Technical Specifications:

• Model Number: ST343
• Enclosure Style: Interlocking Dual U-Shape DIY Electrical Enclosure / Project Box
• Body External Size: Width 3.5" (85mm) x Height 3" (75mm) x Depth 4.5" (110mm)
• Material Composition: 100% Heavy-Gauge Structural Mild Steel Construction (Zero Plastic Elements)
• Weight: Robust Industrial Baseline Approx. 0.63 lbs / 288g
• Thermal Management: Standard ventilation holes are punched on both sides for optimized passive airflow
• Hardware Inclusions: Complete side assembly machine thread hardware screws.

⚙️ Key Product Features:

• Interlocking Dual U-Shaped Chassis: Formed with premium overlapping structural parts that slide securely together. This smart configuration permits effortless bench servicing, swift circuit alterations, and easy internal component alignment.
• Shipped Fully Pre-Assembled for Rapid Staging: Arrives at your workbench perfectly squared with clean technical seams, completely eliminating tedious flat-pack alignment overhead. Technicians can instantly open the housing, configure components, and deploy test boards out of the box.
• Highly Machinable Steel Canvas: Arrives as a flat, smooth, un-drilled surface. The mild steel upper and lower U-panels can be easily drilled, CNC hole-punched, or milled locally using standard workshop tools to comfortably seat toggle switches, potentiometer shafts, and power input arrays.
• Faraday Noise Protection Shielding: Tightly fitting metal-to-metal interlocking structural elements create an excellent electronic barrier, providing high-performance resistance to environmental RF (Radio Frequency) and EMI noise lines to protect sensitive, high-gain circuitry paths.
• Pre-Punched Toolless Knockout Fields: Stamped with precision-scored circular knockout segments on the chassis panel. This electrical-ready design allows field technicians to easily pop open wire entry corridors using a standard screwdriver, enabling clean cable routing and instant conduit attachment without tedious drilling.