SolaX Power X3 Series

Questions and Answers

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Brittany HarrisAug 28, 2025
What to do if SolaX Power Inverter displays Insulation Resistance Abnormal?
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  Timothy HancockAug 28, 2025
  If your SolaX Power Inverter displays 'Insulation Resistance Abnormal', it indicates a short circuit between the PV strings and the protection ground, or that the PV strings are in a long-term moist environment. Check the insulation resistance against the ground for the PV strings and fix any short circuits. If the insulation resistance is less than the default value in a rainy environment, set Insulation resistance protection on the mobile app.
K
khartAug 27, 2025
What to do if SolaX Power Inverter displays PV Strings Abnormal?
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  Emma EspinozaAug 27, 2025
  If your SolaX Power Inverter displays a 'PV Strings Abnormal' message, it could be because the PV strings have been shielded for an extended period or are deteriorating. First, check if the PV string is shielded. If the string is clean and unshielded, inspect the PV modules for signs of aging or deterioration.
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Samantha GonzalezAug 26, 2025
What to do if SolaX Power Inverter shows PV Over Voltage?
- J
  Jonathan WebsterAug 27, 2025
  If your SolaX Power Inverter shows a 'PV Over Voltage' error, it means the input voltage from the PV modules is too high. Check the number of PV modules connected and adjust as needed.
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wrightaliciaAug 25, 2025
Why SolaX Power X3 is off grid?
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  Mikayla RowlandAug 26, 2025
  Your SolaX Power Inverter might be off-grid due to a power grid fault or a tripped DC switch. Wait for the power to be restored. Also, turn the DC switch to the ON position.
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richard02Aug 25, 2025
What to do if SolaX Power X3 displays Residual Current Abnormal?
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  Teresa FoxAug 25, 2025
  If your SolaX Power Inverter displays a 'Residual Current Abnormal' message, it means the insulation resistance against the ground at the input side has decreased, causing high residual current. If this occurs once, it might be due to a temporary external circuit issue, and the inverter should return to normal after the fault is cleared. If it happens repeatedly or persists, check the insulation resistance against the ground of the PV strings.

SolaX Power X3 Series Specifications

General

IP Rating	IP65
Frequency	50Hz / 60Hz
MPPT Efficiency	99.9%
Communication	WiFi / GPRS / Ethernet
Operating Temperature Range	-25°C to +60°C (derating above 45°C)
Number of MPPTs	2
AC Output Voltage	230V
MPPT Range	125V-550V

Summary

Forward

Application Model Identification

Lists PV inverter models X3-(10K/12K)-LV and X3-(20K/25K/30K)-TL covered in the manual.

Intended Audience for Manual

Specifies manual users as PV inverter operating personnel and qualified electrical technicians.

Symbol Conventions

Safety Symbol Meanings

Details safety symbols (DANGER, WARNING, CAUTION, NOTICE, NOTE, REFER) and their associated meanings.

Safety Precautions

Personnel Safety Guidelines

Requirements for qualified technicians in installation, operation, and maintenance.

PV Inverter Protection Measures

Instructions to preserve warning signs and nameplates for safety and warranty.

Installation Safety Requirements

Emphasizes pre-installation reading, ventilation, and electrical isolation for safety.

Electrical Connection Safety

Warns against short circuits and mandates correct DC input and regional electrical standards.

Operation and Commissioning Safety

Highlights high voltage hazards during operation and adherence to manual procedures.

Maintenance Safety Protocols

Requires powering off terminals before maintenance and following all safety precautions.

Additional Safety Information

Advises contacting the dealer for unforeseeable risks or operational issues.

Overview of the Inverter

Functional Models and Description

Describes inverter function as grid-tied PV string inverter and its model naming.

Network Application Scenarios

Details inverter use in grid-tied PV systems for rooftops and ground-based installations.

Outline and Dimensions

Presents physical outline and dimensional specifications of the PV inverter.

Working Modes Explained

Explains Standby, Operating, and Shutdown modes and their switching conditions.

Storage

Inverter Storage Guidelines

Provides storage instructions: temperature, humidity, stacking limits, and handling.

Installation

Checking Outer Packing and Deliverables

Inspect packaging and deliverables for completeness and damage upon receiving the inverter.

Moving the Inverter Safely

Instructions and precautions for safely moving the PV inverter to its installation site.

Identifying the Inverter Model

Guidance on identifying the inverter via its nameplate containing product information.

Compliance and Safety Symbols

Lists and explains inverter compliance and safety symbols, including electrical shock warnings.

Installation Requirements Overview

Basic and environmental requirements for installation: IP rating, ambient temperature, location.

Installation Mode Requirements

Specifies correct/incorrect modes (upright, tilt, horizontal, upside-down) for heat dissipation.

Support-mounting Procedures

Step-by-step instructions for mounting the inverter using the support and rear panel.

Post-Installation Self-check

Checks for correct and secure inverter mounting and connections post-installation.

Electrical Connections

Connecting Protection Ground (PGND) Cables

Details preparation and wiring procedures for connecting the protective ground cable to the inverter.

Connecting AC Output Cables

Outlines cable specs and procedures for AC output connections, including circuit breaker requirements.

Connecting the PV Strings

Prerequisites and procedures for safely connecting PV strings, including cable and connector specs.

Connecting Communication Cables

Explains available communication modes (Bluetooth, WiFi, GPRS, RS485) and their setup.

Setting RS485 Communication Address

Guides setting RS485 communication address via mobile APP.

Installation Verification Checklist

Checklist for ensuring correct and secure inverter installation and connections.

System Operation

Powering ON the Inverter

Step-by-step instructions for powering on the inverter, including AC breaker and DC switch settings.

Powering OFF the Inverter

Step-by-step instructions for powering off the inverter, including residual electricity safety precautions.

User Interface

LED Indicator Status Guide

Explains meanings of LED indicator statuses for monitoring operation and faults.

Maintenance

Routine Maintenance Schedule

Checklist for routine maintenance: output status, heat sink cleaning, cable checks.

Inverter Troubleshooting Guide

Troubleshooting measures for common alarms, causes, and recommended actions for inverter faults.

Inverter Removal Procedures

Details procedures for safely disconnecting and removing the inverter from its mounting.

Quality Guarantee

Warranty Terms and Conditions

Specifies warranty period and terms for repair/replacement of defective PV inverters.

Liability Waiver Conditions

Lists conditions voiding warranty/liability: expired warranty, unauthorized modifications.

Disposal of the Inverter

Environmental Disposal Guidelines

Instructions for disposing the inverter per local environmental laws and regulations.

Technical Specifications

Model X3-10 K-LV & X3-12 K-LV Specs

Detailed specs for X3-10K-LV/X3-12K-LV: efficiency, input/output, protection.

Model X3-20 K-TL Specifications

Detailed specs for X3-20K-TL: efficiency, input/output, and protection features.

Model X3-25 K-TL & X3-30 K-TL Specs

Detailed specs for X3-25K-TL/X3-30K-TL: performance and safety features.

General, HMI, COM & Certification Details

General properties, HMI/COM, and certifications (Safety, EMC) for inverter models.

Related product manuals

SolaX Power X3-20K-TL

54 pages

SolaX Power X3-25K-TL