Sungrow SG125HV/SG125HV-20 PV Inverter User Manual

The Sungrow SG125HV/SG125HV-20 manual provides safety instructions, installation steps, wiring diagrams, commissioning, and maintenance for the three‑phase…


Sungrow SG125HV/SG125HV-20 PV Inverter User Manual - cover page
Brand
Sungrow
Category
Other
Document type
User Manual
Language
English
Pages
114
File format
PDF
File size
3.9 MB
Published
07 October, 2026
Updated
07 October, 2026
MD5 checksum
7C228328D017F013A56576701DC775AD

About this manual

This manual is intended for technical personnel and inverter owners who install, operate, and maintain the SG125HV/SG125HV-20 three‑phase PV grid‑connected transformer‑less inverter. It covers safety warnings, product description, mechanical and electrical installation, commissioning, troubleshooting, and routine maintenance.

The document also details the iSolarCloud APP functions, technical data, tightening torque specifications, and contact information for support. All safety symbols, wiring requirements, and protection features are described to ensure correct and safe deployment.

What's inside

  • Safety Instructions
  • Product Description
  • Installation Flow
  • Unpacking and Storage
  • Mechanical Installation
  • Electrical Connection
  • Commissioning
  • Disconnecting, Dismantling and Disposal
  • Troubleshooting and Maintenance
  • iSolarCloud APP

Error codes in this manual

This manual explains 32 error codes. Open a code for its meaning, causes and what to do:

009010011012036037038039040-042043044-046047048-050053-056059-060070071072076078-081087088089105106116-117220-227448-471532-547548-563

All error codes of this product →

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