QKWBCU2Control unit for welding inverters

/ Perfect Charging / Perfect Welding / Solar Energy MagicWave 190 MagicWave 230i TransTig 230i Operating Instructions TIG Power source 42,0426,0250,EN 007-28012019 EN 2 3 Dear reader, Introduction Thank you for the trust you have placed in our company and congratulations on buying this high-quality Fronius product. These instructions will help you familiarise yourself with the product. Reading the instructions carefully will enable you to learn about the many different features it has to offer. This will allow you to make full use of its advantages. Please also note the safety rules to ensure greater safety when using the product. Careful handling of the product will repay you with years of safe and reliable operation. These are essential prerequisites for excellent results. Explanation of safety notices DANGER! Indicates immediate danger. ► If not avoided, death or serious injury will result. WARNING! Indicates a potentially hazardous situation. ► If not avoided, death or serious injury may result. CAUTION! Indicates a situation where damage or injury could occur. ► If not avoided, minor injury and/or damage to property may result. NOTE! Indicates a risk of flawed results and possible damage to the equipment. IMPORTANT! Indicates tips for correct operation and other particularly useful information. This does not indicate a potentially hazardous situation. If you see any of the symbols depicted in the "Safety rules" chapter, special care is re- quired. EN 4 5 Contents Safety rules ........................................................................................................................................................9 General .........................................................................................................................................................9 Proper use ....................................................................................................................................................9 Environmental conditions .............................................................................................................................9 Obligations of the operator ........................................................................................................................ 10 Obligations of personnel ............................................................................................................................ 10 Mains connection ....................................................................................................................................... 10 Protecting yourself and others ................................................................................................................... 10 Danger from toxic gases and vapours ....................................................................................................... 11 Danger from flying sparks.......................................................................................................................... 11 Risks from mains current and welding current .......................................................................................... 12 Meandering welding currents .................................................................................................................... 13 EMC Device Classifications....................................................................................................................... 13 EMC measures .......................................................................................................................................... 13 EMF measures .......................................................................................................................................... 14 Specific hazards ........................................................................................................................................ 14 Factors affecting welding results ............................................................................................................... 15 Danger from shielding gas cylinders ......................................................................................................... 15 Danger from escaping shielding gas ......................................................................................................... 16 Safety measures at the installation location and during transport ............................................................. 16 Safety measures in normal operation ........................................................................................................ 17 Noise emission values ............................................................................................................................... 17 Commissioning, maintenance and repair .................................................................................................. 17 Safety inspection ....................................................................................................................................... 18 Disposal ..................................................................................................................................................... 18 Safety symbols .......................................................................................................................................... 18 Data protection .......................................................................................................................................... 18 Copyright ................................................................................................................................................... 18 General information 19 General ........................................................................................................................................................... 21 Device concept ..................................................…

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Information Class: Confidential To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attestation Section 2.911(d)(5)(i) and Section 2.911(d)(5)(ii) (KDB 986446 D01 Covered Equipment) Section 2.911(d)(5)(i) FRONIUS International GmbH (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Section 2.911(d)(5)(ii) FRONIUS International GmbH (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Type of Equipment subject to FCC Certification: Display control unit for welding inverters FCC ID: QKWBCU2 If you have any questions, please feel free to contact me. Contact Person: Peter Boxleitner Position in the Company: Teamleader EMC/EMF Date of Signature: 09.09.2025 ___________________________ Signatory (signature of the applicant)

Information Class: Confidential To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attestation Certification designating a U.S. Agent for Service of Process Section 2.911(d)(7) (KDB 986446 D01 Covered Equipment) FRONIUS International GmbH (“the applicant”) as required by section 2.911(d)(7), designate below contact located in the United States for purposes of acting as the applicant’s agent for service of process. The applicant also accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. The US Agent confirms by the signature, that he has accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant as noted below. Type of Equipment subject to FCC Certification: Display control unit for welding inverters FCC ID: QKWBCU2 Sincerely yours, Applicant/Grantee US Agent for Service of Process FRN: 0007536717 ☐ FRN: ☒ no FRN – no other business with FCC except US Agent for service of process [Signature] _________________ [Signature] _________________ Fronius Int. GmbH Fronius USA LLC Peter Boxleitner Klaus Strassmair Grantee Contact Person Managing Director [email protected] [email protected] Fronius USA LLC 6797 Fronius Drive Portage, IN 46368

Long/Short-term Confidentiality Request To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA FCC ID: QKWBCU2 To Whom It May Concerns, Pursuant to sections 0.457(d) and 0.459 of CFR 47 and to avoid premature release of sensitive information prior to marketing or release of the product to the public, the Grantee hereby requests long-term confidential treatment of information accompanying this application as outlined below: ☒ Schematics ☐ Parts List ☒ Block Diagram ☐ Tune-Up Info ☒ Operational Description In addition, the Grantee requests the following exhibits contained in this application to be temporarily (short-term confidentiality) withheld from the public disclosure ☐ for an initial period of days ☐ until: ☒ not applicable ☐ External Photos ☐ Test Setup Photos ☐ Internal Photos ☐ Users Manual The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to rule 0.457(d), disclosure of this application and all accompanying documentation will not be made before the date of the GRANT for this application. If you have any questions, please feel free to contact me. Yours sincerely, Authorised Agent

02/2017 1/1 PHOENIX TESTLAB GmbH Product Certification Department Koenigswinkel 10 32825 Blomberg, Germany Power of Attorney To Whom It May Concern: Please be advised that we, Fronius Int. GmbH, authorize the following persons from PHOENIX TESTLAB GmbH: • Sabrina Berghahn • Bernd Steiner to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters in the following countries: USA, Canada and Japan PHOENIX TESTLAB GmbH has our permission to use our technical documents for the approvals for the following name device: Product description: FCC ID: QKWBCU2 IC: 12770A-BCU2 HVIN: V0.2B_A PMN: BCU iWAVE 190/230 Smart 2 Unless future correspondence from 17.12.2025 please extend your full cooperation to PHOENIX TESTLAB GmbH regarding matters to the above mentioned products to 36 months after the signatory date of this authorization. Contact person Ing. Peter Boxleitner Position in the company Teamleader EMC/EMF Date of signatory 30.10.2025

External Photographs Examiner:Daniel BRUSCHINSKIRevision:01 Date of issue: 08.01.2026Order Number: 24-111002page 1 of 7 EUT – 3D view External Photographs Examiner:Daniel BRUSCHINSKIRevision:01 Date of issue: 08.01.2026Order Number: 24-111002page 2 of 7 EUT – 3D view – external antenna unfolded External Photographs Examiner:Daniel BRUSCHINSKIRevision:01 Date of issue: 08.01.2026Order Number: 24-111002page 3 of 7 EUT – front view EUT – back view External Photographs Examiner:Daniel BRUSCHINSKIRevision:01 Date of issue: 08.01.2026Order Number: 24-111002page 4 of 7 EUT – back view - external antenna unfolded EUT – back view – external antenna removed External Photographs Examiner:Daniel BRUSCHINSKIRevision:01 Date of issue: 08.01.2026Order Number: 24-111002page 5 of 7 EUT – top view EUT – bottom view External Photographs Examiner:Daniel BRUSCHINSKIRevision:01 Date of issue: 08.01.2026Order Number: 24-111002page 6 of 7 EUT – side view 1 EUT – side view 2 External Photographs Examiner:Daniel BRUSCHINSKIRevision:01 Date of issue: 08.01.2026Order Number: 24-111002page 7 of 7 External antenna External antenna – connector view

Information Class: Confidential Label Location Information Model Name: BCU iWave 190/230 Smart 2 Item Number: 43,0001,1788 HVIN: V0.2B_A Front: Information Class: Confidential Back: Print template

Internal Photographs Examiner:Daniel BRUSCHINSKIRevision:01 Date of issue: 08.01.2026Order Number: 24-111002page 1 of 3 PCB – front view * PCB – back view * * Photographs were provided by the applicant Radio module Internal Photographs Examiner:Daniel BRUSCHINSKIRevision:01 Date of issue: 08.01.2026Order Number: 24-111002page 2 of 3 Radio module *Antenna connector PCB – antennas connected * * Photographs were provided by the applicant WLAN / BLE antenna NFC antenna NFC antenna connector Internal Photographs Examiner:Daniel BRUSCHINSKIRevision:01 Date of issue: 08.01.2026Order Number: 24-111002page 3 of 3 EUT – PCB and back cover removed * Display * * Photographs were provided by the applicant NFC antenna

Königswinkel 10 32825 Blomberg, Germany Phone: +49 (0) 52 35 / 95 00-0 Fax:+49 (0) 52 35 / 95 00-10 [email protected] www.phoenix-testlab.de Test Report Report Number: F241002E10 Equipment under Test (EUT): Control unit for welding inverters BCU iWave 190/230 Smart 2 Applicant: Fronius International GmbH Manufacturer: Fronius International GmbH Examiner:Daniel BRUSCHINSKIReport Number: F241002E10 Date of Issue: 23.01.2026Order Number: 24-111002Page 2 of 27 References [1] ANSI C63.4-2014+C63.4a-2017American National Standard for Methods of Measuring of Radio- Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz. [2] FCC 47 CFR Part 2:General Rules and Regulations [3] FCC 47 CFR Part 15:Radio Frequency Devices (Subpart B) [4] ICES-003 Issue 7 (October 2020):Spectrum Management and Telecommunications. Interference-Causing Equipment Standard. Information Technology Equipment (Including Digital Apparatus) —Limits and Methods of Measurement Examiner:Daniel BRUSCHINSKIReport Number: F241002E10 Date of Issue: 23.01.2026Order Number: 24-111002Page 3 of 27 Test Result The requirements of the tests performed as shown in the overview (clause 4) were fulfilled by the equipment under test. The complete test results are presented in the following. “Passed” indicates that the equipment under test conforms with the relevant limits of the testing standard without taking any measurement uncertainty into account as stated in clause 10.2.8.2 of ANSI C63.4 (2014). However, the measurement uncertainty is calculated and shown in this test report. This test report is only valid in its original form. Any reproduction of its contents in extracts without written permission of the accredited test laboratory PHOENIX TESTLAB GmbH is prohibited. The test results herein refer only to the tested sample. PHOENIX TESTLAB GmbH is not responsible for any generalizations or conclusions drawn from these test results concerning further samples. Any modification of the tested samples is prohibited and leads to the invalidity of this test report. Each page necessarily contains the PHOENIX TESTLAB Logo and the TEST REPORT NUMBER. Tested by: Signature Written by: Signature Reviewed and approved by: Signature Examiner:Daniel BRUSCHINSKIReport Number: F241002E10 Date of Issue: 23.01.2026Order Number: 24-111002Page 4 of 27 Contents:Page Identification ................................................................................................................................. 5 1.1Applicant ................................................................................................................................................... 5 1.2Manufacturer ............................................................................................................................................ 5 1.3Test Laboratory ........................................................................................................................................ 5 1.4EUT (Equipment under Test) ................................................................................................................... 6 1.5Technical Data of Equipment ................................................................................................................... 7 1.6Dates ........................................................................................................................................................ 8 Operational States ........................................................................................................................ 9 Additional Information ................................................................................................................. 10 Overview ..................................................................................................................................... 11 Results........................................................................................................................................ 12 5.1Test setups ............................................................................................................................................. 12 5.2Radiated emissions ................................................................................................................................ 17 5.3AC power-line conducted emissions ...................................................................................................... 23 Measurement Uncertainties ........................................................................................................ 25 Test Equipment used for Tests ................................................................................................... 26 Test site Verification .................................................................................................................... 26 Report History ............................................................................................................................. 27 List of Annexes ........................................................................................................................... 27 Examiner:Daniel BRUSCHINSKIReport Number: F241002E10 Date of Issue: 23.01.2026Order Number: 24-111002Page 5 of 27 Identification 1.1 Applicant Name:Fronius International GmbH Address:Günter-Fronius-Straße 1, 4600 Wels-Thalheim Country:Austria Name for contact purposes:Mr. Jan HERNDLER Phone:+43-7242-241-0 eMail address:[email protected] Applicant represented during the test by the following person: Partly: Mr. Jan HERNDLER 1.2 Manufacturer Name:Fronius International GmbH Address:Fronius Straße 5, 4642 Sattledt Country:Austria Name for contact purposes:Mr. Jan HERNDLER Phone:+43-7242-241-0 eMail address:[email protected] Manufacturer represented during the test by the following person: Partly: Mr. Jan HERNDLER 1.3 Test Laboratory The tests were carried out by:PHOENIX TESTL…

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Annex A Test setup photos Examiner:Daniel BRUSCHINSKIReport Number: F241002E10 Date of issue: 08.01.2026Order Number: 24-111002page 1 of 4 Test setups radiated emissions EUT setup Annex A Test setup photos Examiner:Daniel BRUSCHINSKIReport Number: F241002E10 Date of issue: 08.01.2026Order Number: 24-111002page 2 of 4 30 MHz – 1 GHz Annex A Test setup photos Examiner:Daniel BRUSCHINSKIReport Number: F241002E10 Date of issue: 08.01.2026Order Number: 24-111002page 3 of 4 1 GHz – 13 GHz Annex A Test setup photos Examiner:Daniel BRUSCHINSKIReport Number: F241002E10 Date of issue: 08.01.2026Order Number: 24-111002page 4 of 4 Test setup AC power line conducted emissions Test setup – AC power line conducted emissions