WattKit Pre-Assembled DC Box 2String T2

WattKit Pre-assembled DC Box 2-string T2 / 4-string T2

The WattKit pre-assembled DC box is a complete, ready-to-install PV combiner solution designed to ensure a safe and organized DC-side configuration for solar power systems. The 2-string and 4-string T2 versions allow for adaptation to systems of various sizes, while built-in surge protection and simple installation ensure reliable system operation.

DC-side protection and system consolidation in one

The DC combiner box is designed to combine multiple solar strings and safely transmit the power to the inverter. The WattKit solution enhances this function with integrated protection, so the system not only collects energy but also protects it.

The built-in T2 surge arrester prevents lightning strikes or grid disturbances from damaging the inverter or other system components.

Pre-assembled design – fast and error-free installation

One of the box’s biggest advantages is that it is fully pre-assembled, so there is no need to assemble individual components during installation. This significantly reduces installation time and the risk of errors.

Standard MC4 connectors and a well-thought-out internal layout facilitate wiring and ensure a clear system configuration.

Designed for 1000 V DC systems

The WattKit DC box can be used in systems up to 1000 V DC, meeting the requirements of modern solar systems. The 30 A rated current ensures sufficient load capacity for residential and small commercial systems.

This enables stable and safe operation even with higher string power.

Robust design for outdoor use

The enclosure has an IP65 rating, making it resistant to dust, moisture, and other environmental influences. The operating temperature range of −25°C to +60°C ensures that the system operates reliably under various weather conditions.

This is particularly important for systems installed on rooftops or in outdoor environments.

What is the difference between the 2-string and 4-string versions?

The main difference between the two models is the number of strings supported:

• 2-string version: ideal for smaller residential systems
• 4-string version: recommended for larger systems or for managing multiple roof surfaces

In terms of functionality and protection, the two versions are identical; they differ only in terms of system sizing.

SOLARKIT Reviews

The WattKit DC combiner box is a practical and reliable solution for DC-side system design. Thanks to its pre-assembled design, built-in protection, and robust construction, it significantly simplifies installation and enhances system safety.

Recommended for those seeking a fast, transparent, and standardized DC-side solution for their solar power systems, suitable for projects of various sizes.