Technical Documentation Catalogue for outdoor solar mounting racks Catalogue for open area solar mounting frames May 2019 (6,0 MB) Guarantees "ZIMMERMANN 8-year warranty (up to 15 years possible)" Certificates EN 1090 Certificate (CE-Marking) UL 2703:2015 Certificate Grounding Clamp Certification Certificate of Credit-Worthiness ISO 9001:2015 Certificate ISO 14001:2015 Certificate Certificate of Longevity/Durability Management Policy Certificate Top employer