NBPV-2 PV Combiner Box for reliability in harsh environments
The NBPV-2 PV Combiner Box is a critical component in solar power systems, designed to efficiently aggregate and protect photovoltaic (PV) string currents between solar modules and inverters. Engineered for reliability in harsh environments, it delivers IP65/66-rated protection, ensuring waterproof, dustproof, and anti-corrosion performance for long-term durability.
Product Introduction
Engineered for reliability in harsh environments, it delivers IP65/66-rated protection, ensuring waterproof, dustproof, and anti-corrosion performance for long-term durability.
Specifications
| Type | NBPV-2 | NBPV-4 | NBPV-6 | NBPV-8 | NBPV-10 | NBPV-12 | NBPV-16 | NBPV-20 | NBPV-24 |
| Casing | Polycar onate(PC) | ||||||||
| IP Protection Class(IEC60529) | IP66 | IP66 | IP66 | IP66 | IP66 | IP66 | IP66 | IP66 | IP66 |
| IK Impact Resistance Class(IEC62262) | IK08 | IK08 | IK08 | IK08 | IK08 | IK08 | IK08 | IK08 | IK08 |
| Electrical Properties | |||||||||
| Max,Rated Voltage DC | 1000V DC | 1000V DC | 1000V DC | 1000V DC | 1000V DC | 1000V DC | 1000V DC | 1000V DC | 1000V DC |
| Fuse Holder | 1000V DC 30A | ||||||||
| DC Switching MCCB Capacity | 25A | 50A | 80A | 100A | 125A | 160A | 225A | 315A | 350A |
| Surge Protection DC | Type II In=20KA, Imax=40KA, Ucpv=1000V DC | ||||||||
| Over-Voltage Category | Cat III | Cat III | Cat III | Cat III | Cat III | Cat III | Cat III | Cat III | Cat III |
| String Monitoring Device | – | ||||||||
| Diode for the Function of Anti-Reflux | – | ||||||||
| UV Resistance | Es | ||||||||
| Inputs | |||||||||
| Number of DC inputs | 2 | 4 | 6 | 8 | 10 | 12 | 16 | 20 | 24 |
| Connection Type DC Input | PG09, IP68(MC4 Optional) | ||||||||
| Input Cable Size for Negative and Positive | Φ4-8mm | ||||||||
| Input Fuse | 10A 15A 20A 25A | ||||||||
| Environmental | |||||||||
| Ambient Temperature Range Humidity | Temperature: -20℃～+60℃， Humidity: 0-99% | ||||||||
| Altitude | ≤2000m, 2000m Derating | ||||||||
| Installation | Wall mounting/Padlockable Latch | ||||||||
| Dimensions | 250x250x300 | 250x350x150 | 560x380x180 | 560x380x180 | 560x380x180 | 600x400x220 | 600x400x220 | 700x500x300 | 800x600x300 |
| Weight | 4KG | 8 KG | 14 KG | 15 KG | 16 KG | 17 KG | 19 KG | 30 KG | 32 KG |
Key Features
● High-Capacity Current Aggregation
Supports up to 24 PV string inputs with a single output, each string handling a maximum current of 30A, ideal for scalable solar installations.
● Robust Electrical Safety
Series Isolator Switches (16A–60A) and 1500VDC max voltage capability, enabling safe isolation and maintenance across diverse PV systems. Integrated NS1-PV40 Surge Protector (1000VDC, 40KA) with pluggable design for lightning protection, minimizing surge damage risks.
● Dual Protection Mechanisms
Over-Current Protection: SFPV-25B touch-safe fuse with LED indicator for real-time fault detection. Short-Circuit Protection: SFPV/NKC1 circuit breakers support up to 630A max current and 1000VDC, ensuring system-wide safety.
Application
● The IP55/IP65 design is used for outdoor installation.
● MC4 compatible input/output connectors for easy installation.
● DC fuse for each PV string with fuse links meet PV standard.
● DC isolator or DC MCB for isolation or over-voltage protection with inside operation.
● Anti-lighting and surge protector only for PV.
● Each channels has 6 sets of input/output connectors.
● The enclosure is made by polycarbonate and ABS, anti-UV or Stainless material.
Dimensions and Wiring Diagram