LSP 1500V DC Combiner Boxes deliver reliable DC power collection and protection solutions for BEES and solar projects, combining robust design, engineering expertise, and proven performance for long-term system reliability.
LSP goes beyond standard 1500V DC Combiner Boxes by providing fully customized solutions based on your project requirements. From electrical configuration and protection selection to enclosure design and internal wiring, our engineering team delivers optimized solutions built for your specific solar application.
Share your project requirements with LSP, and we’ll provide a customized 1500V DC Combiner Box solution.
LSP 1500V DC Combiner Boxes feature factory-installed protection components, reducing on-site wiring work and enabling faster, easier installation for solar photovoltaic systems.
LSP provides comprehensive technical documentation, including installation manuals, wiring diagrams, and product specifications, helping you complete project installation, commissioning, and maintenance efficiently.
Moving to a 1500V DC architecture allows PV systems to transmit the same power at lower current, which can reduce resistive losses and support longer string configurations. LSP 1500V DC Combiner Boxes are designed to take advantage of this high-voltage architecture while centralizing string collection and protection, helping you optimize cabling, installation, and overall balance-of-system costs.
LSP 1500V DC Combiner Box solutions are designed for a wide range of renewable energy applications, including large commercial and industrial PV systems, battery energy storage systems (BESS), and agrivoltaic projects.
| Technical Data | SLP-1/1-1500V | SLP-16/1-1500V |
| Input | 1 String | 16 Strings |
| Output | 1 String | 1 String |
| Maximum System Voltage | 1500 V DC | 1500 V DC |
| Maximum Output Current | 16 A | 250 A |
| Max. DC Short Circuit Current per Input (Isc) | 16 A (Changeable) | 16 A (Changeable) |
| PV Surge Protector | SLP-PV1500/(S) | SLP-PV1500/(S) |
| SPD Max. Continuous Operating Voltage (Ucpv) | 1500 V | 1500 V |
| SPD Maximum Discharge Current (Imax) | 40 kA | 40 kA |
| DC Fuse Holder | LFPV-1045H | LFPV-1045H |
| Fuse Link | 10/14 × 85 mm, 16 A | 10/14 × 85 mm, 16 A |
| Isolating Switch / DC Circuit Breaker | LDS-32/4 | LDS6DB |
| Rated Insulation Voltage (Ui) | 1500 V | 1500 V |
| Rated Current (Ie) | 16 A | 250 A |
A standard 1500V DC combiner box usually includes:
String fuses or fuse‑disconnectors (15–32 A typical, sometimes up to 60 A in “high current” designs) on each input for overcurrent protection.
1500V DC main disconnect switch or molded‑case circuit breaker (e.g., 250–400 A, load‑break rated) to isolate the whole box from the inverter.
DC surge protective devices (SPDs) – typically Type 2, sometimes Type 1+2 – rated for 1500V DC to protect against lightning and switching surges.
Busbars, terminals, and lugs sized for high DC currents (e.g., up to 600–750 kcmil output conductors).
Optional string monitoring (current, voltage, temperature, fuse/SPD status) with communication (RS485, fiber, wireless).
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