Weidmüller PV Next generator connection box for string inverters with 1 MPPT DC 3I 3O with overvoltage protection

The PV generator connection box from Weidmüller (MPN: 2890580000) offers reliable protection for your photovoltaic system. Equipped with an innovative, standardized circuit board design, it combines robust workmanship with optimized material savings. The integrated PUSH IN technology enables quick, tool-free, and secure installation according to the plug-and-play principle, reducing installation times and minimizing sources of error. The connection box is specially designed for inverters with up to 3 MPP trackers and protects your system and the inverter from overvoltage and short circuits. The weatherproof IP65 housing and robust construction ensure reliable operation even in outdoor areas.

Product details

• Protection for up to 3 PV strings per MPP tracker – flexible and space-saving
• Integrated type I/II surge protection – effectively protects modules and inverters
• Innovative, standardized circuit board design for reduced material costs and easy expandability
• PUSH IN connection technology – fast and tool-free wiring
• Robust, weatherproof IP65 housing with protection against dust, water, and mechanical stress (IK08)
• Easy installation via wall mounting – with matching cable glands
• Complies with EN 61439-2 and IEC 61439-2 approvals

Your advantages at a glance

Simple: The standardized circuit board design allows for easy integration of additional functions. This allows you to easily adapt your PV system to future requirements.
Fast: Thanks to PUSH IN technology, installation is quick and safe – without crimping or special tools.
Safe: The combination of high-quality technology and robust surge protection reduces the risk of installation errors and increases the operational safety of your system.

Suitable for all common inverters

The connection box has been specially designed for inverters with up to 3 MPP trackers and provides comprehensive protection for your system against overvoltage and short circuits.

Plug-and-play convenience

With separately available WM4 C solar connectors, you can configure your enclosure ready for use and significantly reduce connection times. Alternatively, you can also use individual cabling and cable glands.

Technical data

Electrical characteristics

• Max. PV voltage: 1100 V DC
• Max. current per MPP tracker: 30 A
• Max. current per string: 30 A
• Rated current: 50 A

overvoltage protection DC side

• Discharge current (8/20 μs): 20 kA
• Maximum leakage current (8/20 μs): 40 kA
• Total leakage current (8/20 μs): 50 kA
• Total leakage current (10/350 μs): 12.5 kA
• Lightning test current (10/350 μs): 6.25 kA
• Short-circuit resistance: 11,000 A
• Requirement class: Type I/II

Mechanical and general data

• Protection class: IP65
• Impact resistance: IK08
• Insulating material: Polycarbonate
• Ambient temperature range: -40 °C to +50 °C
• Dimensions: 228 × 200 × 172 mm
• Weight: 1.78 kg

Scope of delivery:

1 Weidmüller PV Next DC 3I 3O 3MPP SPD1R CG 11 connection box, pre-assembled cable glands