Outdoor distribution boxes in Singapore are typically made of polycarbonate (PC) or metal, with IP65–IP67 protection, suitable for wall or pole mounting, and designed for low-voltage power distribution.

Key Parameters

Material and Construction

• Thermoplastic Polycarbonate (PC): UV-resistant, halogen- and silicon-free, corrosion-resistant, flame-retardant, self-extinguishing, double insulated (Class II) ( ).
• Metal (Electrolytic Steel Plate): Epoxy resin electrostatic spraying for durability; suitable for outdoor protective boxes with metal or perspective doors ( ). Protection Rating
• IP65–IP67: Dust-tight and protected against water jets or temporary immersion, suitable for harsh outdoor conditions ( ). Mounting Options
• Wall-mounted or pole-mounted for outdoor installations ( ). Voltage and Current Ratings
• Single-phase AC 220V and three-phase AC 380V systems.
• Current ratings typically up to 200A for small to medium distribution boxes; larger modular systems can handle up to 630A ( ). Environmental Conditions
• Operating temperature: -5°C to +40°C (some models allow higher relative humidity at lower temperatures, e.g., 90% at +20°C) ( ).
• Altitude: ≤ 2000m.
• Pollution level: Level 3.
• Suitable for dusty, humid, and industrial outdoor environments ( ). Design Features
• Prefabricated rails and terminals for easy wiring ( ).
• Modular and combinable systems (ENYSTAR, ENYMOD Mi) allow assembly of distribution boards up to 250–630A ( ).
• Flame-retardant and standard-compliant enclosures for safety and reliability ( ).
• Open sidewalls, integrated seals, and safe box connections for flexibility in installation ( ). Applications
• Residential, commercial, and industrial power distribution.
• Photovoltaic systems (ENYSUN), small power control circuits, lighting distribution, and metering ( ). This parameter overview provides a comprehensive guide for selecting outdoor distribution boxes in Singapore, ensuring compliance with safety standards, environmental suitability, and installation flexibility.