VRH Lightning Protection offers a comprehensive range of advanced earthing solutions designed to provide optimal protection against lightning strikes and electrical faults. Our products are engineered to ensure reliable electrical conductivity, enhance safety, and comply with international standards.
Efficient Solar String Integration.
String Combiner Boxes (SCBs) are essential components in large-scale solar photovoltaic (PV) systems. They consolidate multiple solar panel strings into a single output, simplifying the wiring process and reducing the number of input terminals on the inverter. Designed for 1000V DC systems, SCBs ensure efficient, safe, and organized DC power distribution from solar arrays to the inverter.
These boxes are equipped with critical protection elements like DC fuses, surge protection devices (SPDs), and disconnect switches to safeguard the system against overcurrents and transient surges. Housed in rugged, UV-resistant, weatherproof enclosures, SCBs are suitable for outdoor installations in harsh environments, delivering long-term durability and performance.
| System Voltage | 1000V DC |
|---|---|
| Number of Inputs | 4 to 24 fused inputs (customizable) |
| Output | Single output with isolator (MC4 or cable gland) |
| Protection Devices | DC fuses, Surge Protection Device (SPD), DC isolator switch |
| Enclosure Material | UV-resistant Polycarbonate / Powder-coated Metal |
| Ingress Protection | IP65 / IP66 for outdoor use |
| Monitoring Options | Optional current/voltage sensors and data logger interface |
| Operating Temperature | -10°C to +55°C |
| Mounting | Wall-mounted / Structure-mounted |
High-Voltage PV Integration.
String Combiner Boxes (SCBs) for 1500V DC are specialized devices used in utility-scale solar PV installations to combine several photovoltaic string outputs into a single DC output. These boxes reduce cabling complexity, enhance system reliability, and improve power collection efficiency. Designed for high-voltage DC applications, they are built to withstand demanding operational conditions.
Each SCB integrates protective components such as fuses, DC isolators, and Type II/III Surge Protection Devices (SPDs), ensuring safe and stable operation. Housed in robust, UV-resistant enclosures with IP65 or higher ratings, these SCBs are suitable for outdoor environments, including high-heat and high-dust areas. Optional remote monitoring capabilities provide additional visibility into system performance and fault detection.
| System Voltage | 1500V DC |
|---|---|
| Number of Inputs | 4 to 24 fused inputs (customizable) |
| Input Connector | MC4 / Cable glands (as per design) |
| Output | Single output with DC isolator switch |
| Protection Devices | DC fuses, Surge Protection Device (Type II/III), DC isolator |
| Enclosure Type | Polycarbonate / Powder-coated CRCA steel / Aluminum |
| Ingress Protection | IP65 / IP66 for outdoor applications |
| Operating Temperature | -10°C to +60°C |
| Monitoring Capability | Optional current/voltage monitoring, RS485 output |
| Mounting Type | Wall-mounted / Structure-mounted |
Our technical team can design tailor-made earthing systems for any application or environment.
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