Distribution box catalogue | PDF
This document provides specifications for various distribution boxes including dimensions, mounting sizes, and number of ways. It
Dongya Outdoor Distribution Box Specification Table
Dongya outdoor distribution boxes are designed for weatherproof, high-capacity outdoor electrical distribution with IP66 protection and support for high mast lighting and other outdoor applications.
General Specifications
| Feature | Specification |
|---|---|
| Enclosure Type | Weatherproof, outdoor-rated metal box (steel or aluminum) |
| Ingress Protection | IP66 (dust-tight and protected against powerful water jets) |
| Voltage Rating | Typically 433V AC, 3-phase, 4-wire systems (as per LT distribution standards) |
| Frequency | 50 Hz AC |
| Maximum Power Capacity | Up to 6000W for high mast lighting applications |
| Bus Bars | Copper or aluminum, sized for continuous current up to 400A; separate ground and neutral bars |
| Circuit Protection | Molded Case Circuit Breakers (MCCB) or Miniature Circuit Breakers (MCB); bolt-on or plug-in types depending on configuration |
| Main Disconnect | Circuit breaker or fused switch rated for system amperage; thermal-magnetic or electronic trip type |
| Branch Circuits | Multiple positions for branch breakers; spare positions for future expansion |
| Environmental Tolerance | Operating temperature: -50°C to +60°C; Relative Humidity: 30–95% without condensation |
| Additional Features | GPRS interface & controller for remote monitoring, energy meter with RS-485 port, surge and harmonic protection, MODBUS/PACT communication capability |
| Mounting | Surface mount with stainless steel fasteners; powder-coated finish (RAL 7035 light gray) for corrosion resistance |
| Standards Compliance | NEC Article 312, UL 67 panelboard standards, NEMA 3R/4X for outdoor enclosures, IEC 60-870-5-104 for remote communication |
Key Functional Notes
- Outdoor Use: Designed for wet and harsh environments, suitable for construction sites, sports lighting, and municipal installations .
- Protection: Enclosure prevents ingress of dust, water, and vermin; breakers protect circuits from overcurrent and short circuits .
- Monitoring & Control: Integrated GPRS interface allows real-time energy monitoring and remote control of contactors and circuit breakers .
- Flexibility: Supports multiple branch circuits with spare positions for future expansion; bus bars and breakers can be customized per site requirements . This specification table provides a comprehensive overview of Dongya outdoor distribution boxes, aligning with industry standards for low-voltage outdoor electrical distribution and ensuring safe, reliable operation in demanding environments.
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