DC String Combiner Box for Solar PV Arrays
The combiner box merges multiple photovoltaic array source circuits into a single DC output. Each power circuit is individually protected by a touch-safe fuse holder.
Technical Specifications
Overview
Reliable Solar PV String Consolidation
This DC String Combiner Box is designed to consolidate multiple photovoltaic source circuits into a single DC output, streamlining system wiring and enhancing safety. It features individual touch-safe fuse holders for fail-safe operation and provides a convenient access point for routine maintenance and troubleshooting. Built for versatility, it is widely utilized in residential setups, solar farms, and solar pumping systems.
Technical Ratings
Key Electrical Metrics
20 kA
Nominal Discharge Current (In)
40 kA
Max Discharge Current (Imax)
3.5 kV
Voltage Protection Level (Up)
- System Voltage Ratings
- 600V DC1000V DC1100V DC Max
Protection & Safety
Safety Components
- Surge Protection Device (SPD) MDSP-600 / MDPV-30
- DC Circuit Breaker MD812-63
- Touch-safe fuse holders for individual circuit protection
- High flame retardant enclosure material
Environmental & Durability
Ingress Protection
IP65
- Operating Temperature
- -25°C to +55°C
- Build Quality
- WaterproofHigh-Temperature ResistantImpact ResistanceUV Resistant Panel
Construction Details
Materials & Components
| Component | Material/Feature |
|---|---|
| Enclosure | High flame retardant plastic |
| Conductors | Copper platoons for efficient conduction |
| Sealing | Waterproof sealing strip |
| Panel | Grind arenaceous / HD panel |
Installation
Mounting & Stability
- Reserved rear screw holes for direct installation
- Fixed screw assembly for strong stability
- Compact design for wall or frame mounting
Compliance
- Executive Standards
- CEGB 7251.3 2006IEC 60529E660439-1
