Letter of Attestation - Document 70043717 - PV Utility Interactive Inverters certification

Sep 15, 2026

Uploaded by Graffin

Letter of Attestation documents CSA Group, Certification and Testing confirmation of completion of an evaluation for PV Utility Interactive Inverters from Fronius International GmbH. It identifies specific Fronius Primo inverter models and states that the certified products, described in CSA report 70043714, comply with applicable standards and tests. The letter references the performance test protocol for grid-connected photovoltaic systems and lists evaluation sections including maximum continuous power, conversion efficiency, and tare losses, with notes about UL1741 2nd Edition compliance and CEC test timing and voltages.

LanguageEnglish

CategoryLetters

FormatPDF

Pages2

Reading Time1 min

AccessFree to download

Key Letter Details

Issuance and Recipient

Certified Products and Referenced Reports

Testing Scope and Standards

Performance Test Protocol Reference

Evaluation Sections and Notes

Issuer and Restrictions

Letter of Attestation Document: 70043717 Project: 70043717 Master Contract: 203213 Date Issued: October 15, 2015 Issued to: Fronius International GmbH Guenter Fronius Strasse 1 Wels-Thalheim, 4600 Austria CSA Group, Certification and Testing, hereby confirms that it has completed an evaluation for PV Utility Interactive Inverters, Models Fronius Primo 10.0-1 208-240, Fronius Primo 11.4-1 208-240, Fronius Primo 12.5-1 208-240, and Fronius Primo 15.0-1 208-240. | | CSA Group, Certification and Testing, hereby attests that the products identified above | | | | | --- | --- | --- | --- | --- | | and Certified and described in CSA report 70043714, dated October 14, 2015, complies with the | | | | | | | | following standards/tests, to the extent applicable: | | | The testing of the subject inverters was completed according to the following sections of the test protocol entitled “Performance Test Protocol for Evaluating Inverters Used in Grid-Connected Photovoltaic Systems” prepared by “Sandia National Laboratories, Endecon Engineering, BEW Engineering, and Institute for Sustainable Technology”, dated October 14, 2004 as modified by the“CEC Guideline for the use of the Performance Test Protocol for Evaluating Inverters Used in GridConnected Photovoltaic Systems- (draft for immediate use)” prepared by KEMA-Xenergy, and BEW Engineering, dated March 1, 2005 with deviations according to the requirements of the California Energy Commission New Solar Homes Partnership Guidebook 2nd edition (CEC-300-2007-008-CMF), Appendix 3, Section B – “Inverters”: • Maximum Continuous Power • Conversion Efficiency • Tare Losses Notes: 1. The above models have been evaluated and certified to standard UL1741 2nd Edition in CSA Report 70043714. 2. CEC testing performed September 25th, 2015 to October 2, 2015. 3. CEC testing performed at 208 V ac and 240 V ac outputs. 4. For summary of test results and test set up refer to CEC Test Report 70043717 and Appendix A. Issued by: Rob Hempstock AScT Alternative Energy & Sustainability CSA Group Vancouver BC Canada THIS LETTER OF ATTESTATION DOES NOT AUTHORIZE THE USE OF THE CSA MARK ON THE SUBJECT PRODUCTS. QUOTATIONS FROM THE TEST REPORT OR THE USE OF THE NAME OF THE CANADIAN STANDARDS ASSOCIATION AND CSA GROUP OR ITS REGISTERED TRADEMARK, IN ANY WAY, ISNOT PERMITTED WITHOUT PRIOR WRITTEN CONSENT OF THE CANADIAN STANDARDS ASSOCIATION OPERATING AS CSA GROUP, CERTIFICATION AND TESTING DIVISION.

FAQs

Who issued this Letter of Attestation and to whom was it addressed?

CSA Group, Certification and Testing issued the letter to Fronius International GmbH.

Which inverter models are covered by the attestation?

The attestation covers Fronius Primo 10.0-1 208-240, Primo 11.4-1 208-240, Primo 12.5-1 208-240, and Primo 15.0-1 208-240.

What standards and testing basis are referenced in the letter?

Compliance is tied to the CSA report 70043714 and testing based on a performance test protocol for evaluating inverters used in grid-connected photovoltaic systems, with results aligned to applicable standards/tests including UL1741 2nd Edition.

Sep 15, 2026

Uploaded by Graffin