PV Surge Protection & DC Disconnect Switch 1000V – 2-in-2-out

This high-performance surge protection device with integrated DC disconnect switch is specially designed for photovoltaic systems and reliably protects your solar system from harmful voltage spikes, lightning currents, and electrical fault loads. By combining several protection mechanisms, your PV system receives comprehensive safeguarding.

Whether on the roof, in an open field, or as an intermediate distributor – thanks to the weatherproof housing (IP65) and UV-resistant materials, use under demanding environmental conditions is easily possible. The transparent cover allows for quick visual inspection without opening the housing.

The integrated DC disconnect switch allows for safe disconnection of the strings for maintenance, service, or in case of a fault. In addition, the surge protection is designed so that replaceable modules can be used, which simplifies maintenance and reduces operating costs.

Thanks to factory wiring and plug-and-play configuration, elaborate manual cabling is eliminated, minimizing time and potential for error. With the prepared cable connections, the system can be installed immediately.

This system is ideally suited for grid-connected as well as off-grid PV systems and finds broad application in residential and small systems, gardens, agricultural projects, or on carports and sheds.

Technical Features & Functions

• Designed for **2 strings** (inputs) and corresponding outputs
• Maximum operating voltage: **1000 V DC**
• Integrated circuit breaker (32 A, DC) per string
• Surge arrester (Type I/II) with modular, replaceable elements
• Protection against: overvoltage, overcurrent, overload, lightning, short circuit
• Housing material: ABS + PC, flame-retardant, UV-resistant
• Protection rating: **IP65** (dust- and water-tight) with weatherproof construction
• Transparent cover for status monitoring without opening
• Factory pre-wired for plus/minus; integrated strain relief
• Cable glands included in the scope of delivery
• Grounding connection / equipotential bonding provided in the housing

Applications & Fields of Use

This surge protection / connection box is ideally suited for small to medium-sized PV projects with up to two parallel strings. It can be used in both grid-connected solar power systems and off-grid systems. Typical fields of application include:

• Residential buildings, carports, and garden installations
• Smaller-capacity commercial systems
• Agricultural projects, irrigation systems, pump installations
• Camping, vehicles, RVs, and boat installations
• Photovoltaic systems in outdoor areas with direct weather exposure

Advantages & Highlights

Safety & Reliability: By combining surge protection, disconnect switch, and fuses, risks from lightning currents, voltage spikes, and overload are significantly minimized.

Easy Installation: Plug-and-play concept with factory wiring saves installation time and reduces sources of error. The transparent cover allows for quick visual checks.

Maintenance-Friendly: Replaceable protection modules reduce maintenance costs in the long term. In the event of a defect, only the affected module needs to be replaced.

Robust Design: Weatherproof, UV-resistant IP65 housing ensures lasting protection even in harsh environments.

Flexible Use: Universally suitable for many PV systems and applications, ideal for 2-string configurations.

Technical Data (Example Values)

• Operating voltage (Un): 1000 V DC
• Rated current (In): 32 A (per string)
• Maximum discharge current (Imax): typ. up to 40 kA
• Protection level (Up): ≤ approx. 2.8 kV (model-dependent)
• Housing material: ABS + PC (flame-retardant, UV-stabilized)
• Protection rating: IP65
• Operating temperature range: approx. –20 °C to +55 °C
• Cable glands / strain relief: included