SMA Positive Grounding Kit

The SMA Positive Grounding Kit ESHV-P-NR is a high-voltage positive earthing set designed for SMA transformer-based inverters, providing safe grounding for PV modules with rear-contact or thin-film cells that require positive pole earthing.

Product Description

This grounding kit connects the positive PV array pole to earth through a thermal fuse, neutralising potential differences and preventing corrosion in certain module technologies. It integrates with the inverter's insulation monitoring and offers fire protection through thermal fuse disconnection.

Key Features

• Positive earthing: Grounds the positive PV array pole for module protection.
• Thermal fuse protection: Automatic disconnection in case of fault or overcurrent.
• Insulation monitoring compatible: Works with SMA inverter safety systems.
• Simple installation: Retrofit kit for compatible SMA inverters.
• Fire safety: Thermal fuse prevents arcing in fault conditions.

Technical Details

• Application: PV modules requiring positive grounding (rear-contact cells, thin-film).
• Compatible inverters: SMA transformer inverters: Sunny Boy 1100–3800, Sunny Mini Central 4600A–7000HV.
• Voltage rating: High-voltage DC PV array compatible.
• Protection: Thermal fuse with monitoring integration.
• Connection: Internal grounding plug with two positions (positive/negative).

Physical Specifications

• Form factor: Retrofit grounding set for inverter internal installation.
• Materials: High-temperature rated components.
• Mounting: Internal to compatible SMA inverters.

System & Application Notes

• Use cases: Thin-film modules, back-contact cells, or systems requiring positive earthing for corrosion protection.
• Installation: Professional installation within inverter; requires compatible model.
• Alternative: ESHV-N-NR available for negative grounding.
• Standards: Complies with SMA safety and grounding requirements.