SOLINTEG MHT-50K-100 - User Manual

Questions and Answers

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kaitlin20Aug 11, 2025
What to do if my SOLINTEG MHT-50K-100 shows a Grid Voltage Fault?
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  William WatkinsAug 11, 2025
  If your SOLINTEG Inverter displays a Grid Voltage Fault, it means the inverter has detected that the grid voltage exceeds the safety limit. Here's what you can do: 1. Verify that the safety code is correct. 2. Ensure the AC cable wiring is properly connected. 3. If the voltage increase is due to high AC cable impedance, consider replacing it with a thicker cable. 4. With permission from the Electricity Authority, extend the voltage protection limit.
J
Jessica JonesAug 18, 2025
What to do if SOLINTEG Inverter says Mains Lost?
- C
  Cody AllenAug 18, 2025
  If your SOLINTEG Inverter indicates 'Mains Lost', it could be due to a grid power outage or a disconnection in the AC circuit. Here's how to troubleshoot: 1. First, check if there is a general power outage in your area. 2. Then, verify that the AC breaker and terminal are securely connected.
V
Vincent KennedyAug 25, 2025
What to do if my SOLINTEG MHT-50K-100 Inverter displays a Grid Frequency Fault?
- S
  Steven OconnorAug 26, 2025
  If your SOLINTEG Inverter shows a Grid Frequency Fault, it means the grid frequency is outside the set protection range. Try these steps: 1. Check that the AC cable is correctly and securely connected. 2. If permitted by the local electricity company, switch to a country setting with a wider protection range.
A
Ashley HaleySep 2, 2025
What to do if my SOLINTEG MHT-50K-100 Inverter shows a DCI Fault?
- C
  Chloe TuckerSep 2, 2025
  If your SOLINTEG Inverter displays a DCI Fault, which means the direct current injection value exceeds the acceptable range, here’s what you should do: 1. Restart the inverter. 2. If the issue persists, seek assistance from your installer or the manufacturer.

Summary

Safety Instructions

Safety Notes

Critical safety precautions and guidelines to follow during installation, operation, and maintenance of the inverter.

Statement

Outlines the manufacturer's disclaimer regarding damages caused by improper use, installation, or non-compliance.

Product Description

Operation Modes

Describes the different operational modes the hybrid inverter can operate in, such as General, UPS, and Economic modes.

Back-Up and Off-Grid Output

Details the conditions and considerations for utilizing the inverter's back-up and off-grid power supply capabilities.

Installation

Location

Factors to consider when selecting an appropriate and safe installation location for the inverter.

Installation location

Guidelines for choosing an optimal mounting spot that ensures safe operation and longevity of the inverter.

Installation Spacing

Specifies the required clearances around the inverter for adequate ventilation and heat dissipation.

Installation Angle

Defines the correct vertical mounting orientation and prohibits incorrect tilted or upside-down installations.

Bracket Installation

Provides instructions and dimensions for installing the necessary mounting bracket for the inverter.

Mounting the Inverter

Describes the final steps to attach the inverter securely onto the previously installed mounting bracket.

External Ground Connection

Instructions for establishing a proper external ground connection to ensure electrical safety and performance.

Electrical Connection

Electrical Wiring Diagram

AC Connection

PV String Connection

Power Cable of the Battery Connection

Commissioning

Inspection Before Commissioning

Commissioning Procedure

Step-by-step instructions for the initial startup and configuration process of the inverter.

Stop the Inverter

Operation

Advanced Setting

Country Code (Safety Code) Setting

Auto-Test

Reactive Power

Troubleshooting

Error Message

Lists common error messages displayed by the inverter and provides solutions for each.

Inverter Maintenance

Details the necessary safety precautions and procedures for performing routine maintenance on the inverter.

Battery Maintenance

SOLINTEG MHT-50K-100 Specifications

General

Max. DC Input Voltage	1100 V
MPPT Voltage Range	200-1000 V
Nominal Grid Frequency	50 / 60 Hz
THDi	< 3 %
DC Connection	MC4
Nominal AC Output Power	50 kW
Max. AC Output Power	55 kW
Nominal AC Voltage	400 V
Operating Temperature Range	-25°C to +60°C
Output Voltage	400 V
Operating Temperature	-25°C to +60°C
Humidity	0-100%