http://www2.vde.com/en/Institute/OnlineService/VDE-approved-products/Pages/Detail-Search.aspx
Certificate number:40036555
Certified product type:KF635-6.35 KF635A-6.35 KF635B-6.35 KF635S-6.35 KF7620-7.62 KF950-9.5 KF950A-9.52 KF950B-9.52 KF950S-9.52