High-Low Voltage Mixed Installation Isolation Protection Tips for ZCEBOX Plastic Distribution Box Junction Boxes

1. 1.Physical Isolation + Zoned WiringUse ZCEBOX special high-low voltage isolation plates (flame-retardant ABS material, thickness 5mm) to divide the box into a high-voltage area (left side) and a low-voltage area (right side). The distance between the isolation plate and terminals is ≥5cm to block electromagnetic radiation interference; high-voltage lines use flame-retardant copper core wires (wire diameter ≥2.5mm²) and are routed along the box edge, while low-voltage signal wires (e.g., PLC control wires) pass through the central card slots of the box to avoid crossing. In addition, low-voltage area wires are equipped with metal shielding tubes to further enhance anti-interference capability.
2. 2.Identification Protection + Terminal Selection Upgrade

• Identification Distinction: Attach red warning labels (marked "High Voltage Danger") in the high-voltage area and blue labels (marked "Low Voltage Signal") in the low-voltage area. Sleeve corresponding color identification tubes on wire terminal ends (red = high voltage, blue = low voltage) to prevent wrong connection;

• Terminal Protection: Select ZCEBOX high-voltage dedicated terminals (rated voltage ≥690V with insulation shields) for the high-voltage side, and anti-misinsertion terminals (with built-in polarity buckles) for the low-voltage side. Meanwhile, reserve ≥8cm safe operation spacing between high and low voltage terminals to facilitate distinction during maintenance.

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