K2 TerraGrif K2MI Duo 18 - 2003542

Introduction

The TerraGrif K2MI Duo 18 (Art. No. 2003542) is a compact, high-quality solution from K2 Systems GmbH for equipotential bonding and grounding of solar module frames in combination with K2 mounting systems. It was specifically developed for integration into the **K2 Dome 6** and **Dome Zero** flat roof systems. This plate creates a secure connection between the module frame and the substructure, which is essential for correct electrical function and lightning protection.

Thanks to its robust stainless steel material (grade 301 TA), the plate is extremely corrosion-resistant and reliable over the long term. It can be easily integrated into existing K2 mounting setups, for example alongside **K2 roof hooks**, within the **K2 rail**, or in combination with **K2 Minirail**. This way, it contributes to a securely mounted photovoltaic system while meeting requirements for lightning protection and electrical regulations.

The TerraGrif K2MI Duo 18 is specifically designed for photovoltaic mounting systems where equipotential bonding between the module and substructure is required – for example, for integration into lightning protection or to ensure electrical safety. Its compact design makes it flexible to use without requiring much space.

Technical Specifications

• Material: Stainless steel 301 TA (untreated)
• Application: Equipotential bonding / grounding between module frame and mounting system
• Compatible mounting systems: K2 Dome 6, Dome Zero (flat roof systems)
• Weight per unit: approx. 0.003 kg
• Type designation: K2MI Duo 18 (equipotential bonding plate)

Features & Benefits

• Secure equipotential bonding: Electrically connects the module frame to the mounting system to dissipate currents and meet safety requirements.
• Lightning protection integration: Enables integration of the PV system into lightning protection systems, similar in function to a **K2 lightning protection clamp**.
• Corrosion-resistant: Stainless steel 301 TA provides high resistance to weather influences.
• Compact design: Minimal space requirement, easy installation even in tight areas alongside **K2 roof hooks** or **K2 rail**.
• Compatibility: Seamlessly integrates into various K2 systems such as Dome 6 / Dome Zero / K2 mounting systems in general.
• Future-proof: Complements any **K2 photovoltaic** installation as an addition for secure electrical connection and lightning protection.

Recommended Applications

The TerraGrif K2MI Duo 18 is ideal for installations on flat roofs implemented with the K2 Dome 6 or Dome Zero system. It is used when continuous equipotential bonding between modules and substructure is required. This is particularly relevant with regard to compliance with electrotechnical standards and safety regulations in the field of lightning protection.

Installation Notes & Compatibility

During installation, it must be ensured that the plate is correctly integrated into the **DomeClamp module clamps** and provides good metallic contact with both the module frame and the rail or system. In the installation instructions for the **Dome 6 system**, it is listed as an optional element in the chapter "TerraGrif – Equipotential Bonding".

The TerraGrif K2MI Duo 18 is not suitable for all K2 systems – it is specifically intended for flat roof systems (Dome 6 / Zero). For pitched roof systems, it must be checked whether alternative solutions or clamps with equipotential bonding can be used.

Weight & Delivery

Item weight (net): approx. 0.003 kg