ABB PRO-33.0-TL Series

Questions and Answers:

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srussellAug 26, 2025
What to do if ABB PRO-33.0-TL Inverter displays Isolation fault?
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  Richard PatelAug 26, 2025
  If the ABB Inverter displays 'Isolation' fault: 1. Power down the inverter. 2. Make sure that no people, animals or other objects are in danger or in contact with the electrical parts of the PV system. 3. Visually examine the cabling of the PV system for faults or burn marks. 4. If the system looks normal, restart the inverter. If the same fault occurs again, power down the inverter and contact your system supplier. The cause is low impedance between DC+ or DC- bus of the inverter and the ground.
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Abigail DavisAug 26, 2025
How to fix String current deviation in ABB Inverter?
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  Christopher MillsAug 27, 2025
  To address an ABB Inverter 'String current deviation' issue: 1. Read the aux code (1...8) from the Events menu -> Active faults -> String current deviations. The aux code number refers to the affected string. 2. Examine the affected string for shading. 3. Ensure the panels in the affected strings are not damaged. 4. Verify that the string monitoring configuration settings are feasible. This issue is caused by current deviation between strings.
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karen47Aug 27, 2025
How to resolve Blown string fuse warning on ABB PRO-33.0-TL?
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  Stephanie TaylorAug 27, 2025
  To resolve a 'Blown string fuse' warning on your ABB Inverter: 1. Read the aux code (1...8) from the Events menu -> Active warnings. The aux code refers to the affected string. If the aux code refers to a string that is not connected, run the string configuration assistant with the proper settings. 2. If the same warning occurs again, power down the inverter and contact authorized service personnel to replace the failed string fuses. This warning indicates one or more failed DC string fuses.
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laura36Aug 27, 2025
What does Control board overtemperature mean on ABB PRO-33.0-TL Inverter?
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  Cassandra VillarrealAug 27, 2025
  If the ABB Inverter shows a 'Control board overtemperature' warning, monitor the inverter for a few days. If the warning occurs frequently, contact authorized service personnel. This warning indicates high temperature in the control electronics. The inverter adjusts the output current and power until the internal temperature decreases, and automatically returns to normal operation.
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pattersonandreaAug 27, 2025
What does Inverter overtemperature mean on ABB Inverter?
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  Jacob ReevesAug 28, 2025
  If the ABB Inverter displays a 'Inverter overtemperature' warning, monitor the inverter for a few days. If the warning occurs frequently, contact authorized service personnel. This warning indicates high temperature in the power electronics. The inverter adjusts the output current and power until the internal temperature decreases, and automatically returns to normal operation.
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Danielle HinesAug 28, 2025
What does Line filter overtemperature mean on ABB PRO-33.0-TL Inverter?
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  collin62Aug 28, 2025
  If the ABB Inverter displays a 'Line filter overtemperature' warning, monitor the inverter for a few days. Contact authorized service personnel if the warning occurs frequently. This indicates a high temperature in the line filter.
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donnasellersAug 28, 2025
What to do if ABB PRO-33.0-TL Inverter shows FRT grid fault?
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  Melissa BrownAug 28, 2025
  If the ABB Inverter displays a 'FRT grid fault', restart the inverter and monitor that it connects to the grid. The cause is a grid voltage disturbance exceeded the FRT trip curve.
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Brent BentonAug 29, 2025
What causes Input overcurrent on ABB PRO-33.0-TL?
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  Dr. Christopher Tucker MDAug 29, 2025
  If the ABB Inverter displays 'Input overcurrent', restart the inverter. When the inverter returns to normal operation, monitor the inverter for a few days. The cause is that the inverter was not able to limit the input current to the maximum value during a sudden change in operating conditions.
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Annette PerryAug 30, 2025
What does FRT grid warning mean on ABB PRO-33.0-TL?
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  Angela AtkinsAug 30, 2025
  If the ABB Inverter displays 'FRT grid warning', no user actions are required. This is an informative warning about grid disturbance. The cause is that the trigger level for the FRT tripping curve was exceeded.
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Timothy BakerAug 30, 2025
How to troubleshoot FBA communication error on ABB PRO-33.0-TL?
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  Sarah MoralesAug 31, 2025
  If the ABB Inverter displays 'FBA communication' error, follow these steps: 1. Make sure that the master controller can communicate. 2. Examine the adapter settings and status. Refer to the user documentation of the fieldbus interface. 3. Examine the cable connections. The cause is communication between the inverter and the fieldbus adapter or between the master controller and the fieldbus adapter is lost.

ABB PRO-33.0-TL Series Specifications

General

Model	PRO-33.0-TL
Type	String Inverter
Max. DC Voltage	1000 V
AC Voltage	400 V
Frequency	50/60 Hz
Topology	Transformerless
Number of MPPT	2
MPPT Voltage Range	200 - 800 V
Cooling	Forced Air
Protection Degree	IP65
Operating Temperature Range	-25 to +60 °C
Max. DC Power	33.0 kW
Max. AC Power	33000 W