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Compare REFUsol inverters according to series, AC performance and device design.
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Which REFU version fits?
Trade and industry: REFUsol 20K-2T, 20K-3T, 25K/33K-3T and 50K-4T differ according to rated power and MPP configuration. The complete type designation is a selection.
Larger installations: For REFUsol 110K/125K-10T, the data sheet 100/110 kW specifies rated power. For 250K-5T and 360K-6T, temperature-dependent initial values and the 800-V connection conditions are in the technical view.
Repowering: Check type plate, string design, network connection and communication. The same model numbers and manufacturer's specifications for integration do not replace a test of the specific existing plant.
Older equipment: The archive performs previous REFUsol generations, UL versions and REFUstore battery inverters separately. REFUpower/REFUbess total memory and communication accessories do not count here as independent inverters.
Sources: REFU product overview and the linked current product pages and original data sheets.
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0 matching series in the inverter archive. View archive hits ↓
Illustrative image
REFUsol 20K-2T
PV inverter · 3-phase
20 kW
POWER VARIANTS · STRING · 2T
REFUsol 20K-2T
20 kW · PV inverter · 3-phase
V01 · 08.06.2026 (file identifier)
Availability on request. The assigned original data sheet and the specific device design are decisive.
Illustrative image
REFUsol 20K-3T
PV inverter · 3-phase
20 kW
POWER VARIANTS · STRING · 3T
REFUsol 20K-3T
20 kW · PV inverter · 3-phase
V01 · 08.06.2026 (file identifier)
Availability on request. The assigned original data sheet and the specific device design are decisive.
Illustrative image
REFUsol 25K/33K-3T
PV inverter · 3-phase
25–33 kW
POWER VARIANTS · STRING · 3T
REFUsol 25K/33K-3T
25–33 kW · PV inverter · 3-phase
V01 · 08.06.2026 (file identifier)
Availability on request. The assigned original data sheet and the specific device design are decisive.
Illustrative image
REFUsol 50K-4T
PV inverter · 3-phase
50 kW
POWER VARIANTS · STRING · 4T
REFUsol 50K-4T
50 kW · PV inverter · 3-phase
V02 · 08.06.2026 (file identifier)
Availability on request. The assigned original data sheet and the specific device design are decisive.
Illustrative image
REFUsol 110K/125K-10T
PV inverter · 3-phase
Nominal power according to data sheet
100–110 kW
POWER VARIANTS · STRING · 10T
REFUsol 110K/125K-10T
100–110 kW · PV inverter · 3-phase
V01 · 08.06.2026 (file identifier)
- 100 kW
REFUsol 110K-10T10 MPP TrackerDetails Enquire - 110 kW
REFUsol 125K-10T10 MPP TrackerDetails Enquire
The original data sheet lists 100 kW rated power for REFUsol 110K-10T and 110 kW for REFUsol 125K-10T. AC output power: 110/125 kVA at 45 °C or 100/110 kVA at 50 °C. The model number is not the AC rated power.
Availability on request. The assigned original data sheet and the specific device design are decisive.
Illustrative image
REFUsol 250K-5T
PV inverter · 3-phase
250 kVA at 50 °C · 5 MPPT
TECHNICAL DOCUMENTS · UTILITY
REFUsol 250K-5T
250 kVA at 50 °C · 5 MPPT · PV inverter · 3-phase
V02 · 22.05.2026 (file identifier)
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
Technical view: 5 MPP trackers, AC output power 250 kVA at 50 °C and 800-V power supply according to the original. No specification specifically referred to as kW rated power; the apparent power is not converted into a fixed kW model line.
Availability on request. The assigned original data sheet and the specific device design are decisive.
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REFUsol 360K-6T
PV inverter · 3-phase
363 kW at 30 °C / 330 kW at 40 °C · 6 MPPT
TECHNICAL DOCUMENTS · UTILITY
REFUsol 360K-6T
363 kW at 30 °C / 330 kW at 40 °C · 6 MPPT · PV inverter · 3-phase
19.08.2026 (file identifier)
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
Technical view: 6 MPP trackers, 800-V power supply. The original mentions 363 kW at 30 °C and 330 kW at 40 °C. The temperature-dependent initial values are not output as a fixed AC rated power.
Availability on request. The assigned original data sheet and the specific device design are decisive.
No current series found for this selection. Change your selection or get personal advice.
Series and documents according to manufacturer overview. Source check: 07.11.2026. A manufacturer list confirms no stock. English and provisional data sheets are marked on the download page.
Inverter archive
Older devices and document versions outside the current selection. An archive assignment is not a confirmed cancellation. We will clarify delivery options and replacement solutions on request.
REFUsol 003K–005K
PV inverter · 1-phase
3,68–4,6 kVA · 1 MPPT
ARCHIV · TECHNICAL DOCUMENTS · PREVIOUS STRENGTHERS
REFUsol 003K–005K
3,68–4,6 kVA · 1 MPPT · PV inverter · 1-phase
Document level not shown · Source review 07.11.2026
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
REFUsol 003K, 004K and 005K: an MPP tracker; AC measurement power 3,68 / 4,12 / 4,6 kVA. The sheet also indicates maximum active power; these do not replace explicitly documented AC rated power in kW.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 004K–006K
PV inverter · 1-phase
3,75–4,6 kW
ARCHIV · PERFORMANCE VARIANTS · PREVIOUS STRENGTHERS
REFUsol 004K–006K
3,75–4,6 kW · PV inverter · 1-phase
V01 · 06/2011 (document identifier)
- 3,75 kW
REFUsol 004K1 MPP TrackerDetails Archive enquiry - 4,2 kW
REFUsol 005K1 MPP TrackerDetails Archive enquiry - 4,6 kW
REFUsol 006K1 MPP TrackerDetails Archive enquiry
The table values are 3,75 / 4,2 / 4,6 kW AC measurement power and differ from the model numbers.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 008K–020K · earlier document version
PV inverter · 3-phase
8,25–19,2 kVA · 1 MPPT
ARCHIV · TECHNICAL DOCUMENTS · PREVIOUS STRENGTHERS
REFUsol 008K–020K · earlier document version
8,25–19,2 kVA · 1 MPPT · PV inverter · 3-phase
Document level not shown · Source review 07.11.2026
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
Older stand for REFUsol 008K, 010K, 013K, 017K and 020K: AC measurement power 8,25 / 10 / 12,4 / 16,5 / 19,2 kVA; an MPP tracker. Maximum kW values are not reinterpreted as AC rated power.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 08K–23K-MV
PV inverter · 3-phase
8,25–23 kW
ARCHIV · PERFORMANCE VARIANTS · PREVIOUS STRENGTHERS
REFUsol 08K–23K-MV
8,25–23 kW · PV inverter · 3-phase
V01 · 16.05.2017
- 8,25 kW
REFUsol 08K1 MPP TrackerDetails Archive enquiry - 10 kW
REFUsol 10K1 MPP TrackerDetails Archive enquiry - 13 kW
REFUsol 13K1 MPP TrackerDetails Archive enquiry - 17 kW
REFUsol 17K1 MPP TrackerDetails Archive enquiry - 20 kW
REFUsol 20K1 MPP TrackerDetails Archive enquiry - 23 kW
REFUsol 23K-MV1 MPP TrackerDetails Archive enquiry
08K has 8,25 kW AC measurement power; 23K-MV has a different mains voltage. Previous 008K–020K sheets are separate.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 012K–024K-UL
PV inverter · 3-phase
12–23,2 kW
ARCHIV · PERFORMANCE VARIANTS · UL IMPLEMENTATIONS
REFUsol 012K–024K-UL
12–23,2 kW · PV inverter · 3-phase
Document level not shown · Source review 07.11.2026
- 12 kW
REFUsol 012K-UL1 MPP TrackerDetails Archive enquiry - 16 kW
REFUsol 016K-UL1 MPP TrackerDetails Archive enquiry - 20 kW
REFUsol 020K-UL1 MPP TrackerDetails Archive enquiry - 23,2 kW
REFUsol 024K-UL1 MPP TrackerDetails Archive enquiry
Historical 480-V/60-Hz version for North America. REFUsol 024K-UL has 23,2 kW AC measurement performance. No confirmation of today's German network approvals.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 24K-UL/48K-UL
PV inverter · 3-phase
24 / 48 kVA · 1 MPPT
ARCHIV · TECHNICAL DOCUMENTS · UL IMPLEMENTATIONS
REFUsol 24K-UL/48K-UL
24 / 48 kVA · 1 MPPT · PV inverter · 3-phase
Document level not shown · Source review 07.11.2026
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
The actual document title is REFUsol 24K-UL/48K-UL; the file name 24-46K is misleading. Historical 480-V versions with 24/48 kVA and an MPP tracker. No today's German net release claims.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 40K/46K-MV
PV inverter · 3-phase
40–46 kW
ARCHIV · PERFORMANCE VARIANTS · PREVIOUS STRENGTHERS
REFUsol 40K/46K-MV
40–46 kW · PV inverter · 3-phase
V01 · 16.05.2017
- 40 kW
REFUsol 40K1 MPP TrackerDetails Archive enquiry - 46 kW
REFUsol 46K-MV1 MPP TrackerDetails Archive enquiry
An MPP tracker. The MV version requires the right power/transformer connection.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 100K
PV inverter · 3-phase
83,3–100 kVA by mains voltage · 1 MPPT
ARCHIV · TECHNICAL DOCUMENTS · PREVIOUS PROJECT DEVICES
REFUsol 100K
83,3–100 kVA after mains voltage · 1 MPPT · PV inverter · 3-phase
V02 · 07.03.2019
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
Configuration-dependent technical view: 83,3 / 88 / 92 / 100 kVA at different AC power voltages; an MPP tracker. No fixed kW model line derived from apparent performance.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 100K/500K/630K
PV inverter · 3-phase
100 / 500 / 630 kVA · 1 MPPT
ARCHIV · TECHNICAL DOCUMENTS · PREVIOUS PROJECT DEVICES
REFUsol 100K/500K/630K
100 / 500 / 630 kVA · 1 MPPT · PV inverter · 3-phase
Document level not shown · Source review 07.11.2026
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
Historical central inverter: AC measurement power 100 / 500 / 630 kVA, an MPP tracker. The separately mentioned maximum active power is not used as an AC nominal value. Observe the grid transformer and connection conditions in the original.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 333K
PV inverter · 3-phase
333 kVA · 1 MPPT
ARCHIV · TECHNICAL DOCUMENTS · PREVIOUS PROJECT DEVICES
REFUsol 333K
333 kVA · 1 MPPT · PV inverter · 3-phase
Document level not shown · Source review 07.11.2026
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
Historical central inverter: 333 kVA AC measurement power, an MPP tracker, 690-V port with external power transformer. 333 kW are shown as maximum active power.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 20K–33K-2T · earlier Generation
PV inverter · 3-phase
20–33 kW
ARCHIV · PERFORMANCE VARIANTS · PREVIOUS STRENGTHERS
REFUsol 20K–33K-2T · earlier Generation
20–33 kW · PV inverter · 3-phase
V04 (file identifier)
- 20 kW
REFUsol 20K-2T2 MPP TrackerDetails Archive enquiry - 25 kW
REFUsol 25K-2T2 MPP TrackerDetails Archive enquiry - 33 kW
REFUsol 33K-2T2 MPP TrackerDetails Archive enquiry
Previous 2T generation with two MPP trackers. The equivalent 20K-2T model name does not represent an identity with the current document status. For 25K-2T and 33K-2T, the sheet contains the availability notice from Q1/2021.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 250K-6T · earlier document version
PV inverter · 3-phase
250 kVA at 50 °C · 6 MPPT
ARCHIV · TECHNICAL DOCUMENTS · PREVIOUS UTILITY DEVICES
REFUsol 250K-6T · earlier document version
250 kVA at 50 °C · 6 MPPT · PV inverter · 3-phase
V01 (file identifier)
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
Further on the REFU collection page linked older document stand with six MPP trackers and a maximum of 250 kVA at 50 °C. Separated from REFUsol 250K-5T; no general termination or interchangeability claims.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUsol 350K-8T · earlier document version
PV inverter · 3-phase
352 / 320 / 295 kVA by temperature · 8 MPPT
ARCHIV · TECHNICAL DOCUMENTS · PREVIOUS UTILITY DEVICES
REFUsol 350K-8T · earlier document version
352 / 320 / 295 kVA by temperature · 8 MPPT · PV inverter · 3-phase
V01 (file identifier)
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
Also on the REFU collection page linked older document stand with eight MPP trackers. Maximum AC signal power 352 kVA at 35 °C, 320 kVA at 45 °C and 295 kVA at 50 °C. Separated from the current 360K-6T.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
REFUstore 50K/88K
Battery inverter · 3-phase
50–88 kVA after configuration
ARCHIV · TECHNICAL DOCUMENTS · BATTERY
REFUstore 50K/88K
50–88 kVA after configuration · Battery inverter · 3-phase
V03 · 04.03.2019
The documented versions and service conditions can be found in the linked original document. Ask the appropriate device type and the specific configuration personally.
Bidirectional battery inverter without PV MPP tracker. Configuration-dependent technical view: 88 kVA at 400 V, 83 kVA at 380 V and 50 kVA at 380 V respectively; further conditions for second-life applications in the original.
Older manufacturer's document. Delivery options on request. The assigned original data sheet and the specific device design are decisive.
No archived series found for this selection. Change your selection or get personal advice.
Manufacturer information about REFU
REFU at a glance
REFU offers PV-String inverters for commercial, industrial and large open-air systems under the name REFUsol. The current devices differ by power supply, rated power and number of independent MPP trackers.
At TP ENERGY GmbH, companies and private customers can personally request REFU devices and suitable designs. Individual devices and project quantities are possible. We will clarify availability, delivery and collection with you.
Source of manufacturer: REFU products and utilities.
Read more about REFU
Which REFUsol inverters are there?
The current selection follows the individual German REFU product pages: 20K-2T and 20K-3T, 25K/33K-3T, 50K-4T, 110K/125K-10T as well as the utility devices 250K-5T and 360K-6T. Summarized series open the corresponding models and original documents.
Why do model numbers not always correspond to the rated power?
For REFUsol 110K-10T, the current original data sheet indicates a nominal power of 100 kW and for REFUsol 125K-10T 110 kW. The higher, temperature-dependent AC output power is separated in kVA. Historical model names may also differ from the table value: REFUsol 004K in the 004K–006K sheet, for example, has 3,75 kW AC measurement power.
How are the big utility devices displayed?
REFUsol 250K-5T is documented with 250 kVA at 50 °C. The 360K-6T sheet indicates 363 kW at 30 °C and 330 kW at 40 °C. Therefore, these series lead to the technical view with original conditions. The selection does not claim a single temperature independent kW nominal value.
What is important when replacing older devices?
The current REFUsol-20K-2T file and previous 20K–33K-2T documents are kept separately. Comparable designations do not prove identical hardware or automatic interchangeability. For repowering, DC voltage, string currents, power supply, assembly and communication must be checked.
What does the inverter archive contain?
The archive bundles older original documents from the existing manufacturer stock as well as the document stands 250K-6T and 350K-8T still linked on the REFU collection page. These are separated from the newer single product pages 250K-5T and 360K-6T. The archive assignment is an editorial separation of document stands and not a general termination by REFU.
Historical UL documents document special mains voltages and frequencies for other markets. Their inclusion does not confirm today's admissibility on the German network. REFUstore 50K/88K is a battery inverter; PV MPP trackers are not applicable.
What pictures and documents are stored?
The maps show original images of the REFU website or still extracted images from the associated manufacturer data sheets. Series images are labeled accordingly. Downloads lead to the original files in our WordPress library; file format, size, language and documented document status are on download.
How do I request a REFU device?
Select the series and, if necessary, the exact model. "Inquiries" or "Archive request" takes over the context in our central contact form. For existing facilities, type plate, complete device type and grid connection data help. Even without a well-known model name, you can reach us via direct contact.
Sources: REFU Collecting Page, 20K-2T, 20K-3T, 25K-3T, 33K-3T, 50K-4T, 110K-10T, 125K-10T, 250K-5T, 360K-6T and the original documents linked to each series. Source verification: 07.11.2026.
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