Elektro-Plast Photovoltaic DC Stringbox

When you open a professional solar installation, what defines quality isn’t just the panels — it’s the enclosure that ties them together. Elektro-Plast photovoltaic DC string boxes are built exactly for that role: compact, IP65-sealed enclosures that gather, protect, and isolate solar DC circuits with the reliability demanded by modern PV systems.

They combine fuse protection, surge arrestors, disconnects, and terminals in one coordinated assembly — preconfigured for installers who value speed, clarity, and long-term stability.

Elektro-Plast PV DC combiner boxes — clean wiring, clean logic

Every photovoltaic field generates multiple strings. Elektro-Plast PV DC combiner boxes collect those circuits into a single protected output toward the inverter.
Each box integrates fuse holders, busbars, and labeled terminals, minimizing wiring clutter. The internal copper conductors are dimensioned for low loss and temperature rise, ensuring efficiency even in continuous high irradiance.

The enclosures are molded from UV-stable, impact-resistant polymer, rated to IP65 and IK08 for mechanical durability. Mount them outdoors, on the back of arrays, or next to inverters — they stay sealed and dry.

Elektro-Plast DC string boxes built for field installation

For small and medium arrays, Elektro-Plast DC string boxes simplify string connection, isolation, and protection.
Each unit contains DC fuse links on both positive and negative poles, a dedicated DC isolator, and optional SPD modules for surge suppression.
Cable glands and MC4-compatible connectors make termination quick and tool-friendly.
Inside, labeled terminals and internal wiring harnesses reduce installation time and error risk — a small but decisive factor in large-scale deployments.

Elektro-Plast PV DC disconnects — safety at the source

When service work starts, isolation is non-negotiable. Elektro-Plast PV DC disconnects provide positive off-load isolation up to 1000 VDC.
Their switch mechanisms are double-break type, ensuring full pole disconnection and arc suppression inside enclosed chambers.
External handles with padlock capability prevent accidental re-energizing during maintenance.
Every disconnect is tested for endurance, with switch ratings aligned to IEC 60947-3 standards.

Elektro-Plast PV surge protection that holds under storms

Lightning and grid transients are the biggest threats to DC systems. Elektro-Plast PV DC SPDs (surge protective devices) absorb and divert overvoltages from both direct and indirect strikes.
They use replaceable MOV-based cartridges with visual status indicators, making inspection fast and service simple.
Coordinated with inverter input ratings, they clamp surges within safe levels while preserving insulation coordination across the installation.
When paired with fuse protection, they form the first defense layer of any solar array.

Elektro-Plast PV fuse holders for modular safety

Each PV string needs current-limiting protection tuned to its conductor capacity. Elektro-Plast PV fuse holders provide that protection using industry-standard cylindrical fuse links rated for up to 1500 VDC.
The contacts are silver-plated copper, ensuring low resistance and no heat buildup.
Spring clips secure the fuse links under vibration, and the IP20 front protection ensures user safety during replacement.
For multi-string arrays, the holders align on DIN rails for fast, symmetrical assembly.

Elektro-Plast DC string box IP65 — protection against the elements

Outdoor PV installations demand durability. Elektro-Plast DC string boxes IP65 are weatherproof enclosures designed to withstand rain, dust, and UV exposure without losing sealing performance.
The gland plates use elastomer seals, and the hinges remain functional even after thousands of open-close cycles.
Transparent or opaque covers are available depending on inspection needs.
Every assembly includes grounding points and internal PE links for equipotential bonding — critical for safe long-term operation.

Elektro-Plast PV DC enclosures for system integrators

When projects require customized layouts, Elektro-Plast PV DC enclosures provide a modular foundation.
The enclosures come predrilled or blank, ready to accept isolators, fuse holders, SPDs, or terminal blocks.
Polycarbonate and fiberglass options support higher mechanical stability or chemical resistance, depending on site conditions.
Integrators use them to build custom combiner boxes or disconnect stations that still meet enclosure and insulation standards.

PV surge protection and coordination

System-level reliability depends on coordinated protection. Elektro-Plast PV surge protection systems pair SPDs with properly rated fuses and disconnects to meet both Type 1+2 and Type 2 protection classes.
They’re tested for high-energy transients and sustained overvoltage, maintaining clamping consistency through the full lifecycle.
The plug-in design simplifies cartridge replacement without rewiring, keeping downtime to a minimum.

MC4-compatible DC string boxes

Modern arrays rely on fast connection. Elektro-Plast MC4 DC string boxes use pre-installed MC4 connectors for quick plug-and-play assembly in the field.
They’re ideal for distributed solar systems or retrofit upgrades, allowing safe connection and disconnection under load-free conditions.
Internally, busbars and terminals are fully insulated; externally, the connectors lock with tactile feedback for a secure, weatherproof seal.

Tested reliability, ready for the field

Every Elektro-Plast PV box and component undergoes routine dielectric and insulation testing for up to 1500 VDC operation.
The internal wiring uses tinned copper conductors; the terminals are vibration-tested and temperature-rated for long-term exposure.
Installers trust them because they work the first time — no resealing, no retrofits, no callbacks.

Wholesale and B2B supply

At Bank of Lamps, we supply the full Elektro-Plast photovoltaic DC protection range — including PV DC string and combiner boxes, disconnects, SPDs, fuse holders, and MC4-equipped enclosures — directly from our warehouse in Latvia, with export across Europe.
We serve EPC contractors, PV installers, and maintenance engineers who expect consistent, compliant, and field-ready DC components.
Each order includes wiring diagrams, datasheets, and torque specifications for safe integration into photovoltaic arrays.