EN 528 cabinet "U" handles are assembled to drawers / doors from the outside using cap screws.
Cabinet "U" handles, type PP (Polypropylene) are, however, less viable from a mechanical and thermal standpoint, but price wise they are more economical and are quite adequate for many applications.
Cabinet "U" handles, type SV are made of a UL 94 V-0 plastic material which is self-extinguishing. The classification to UL 94 V-0 (Underwriters Laboratories) covers the properties and durability against fire. According to their tests a plastic test piece of a defined shape and dimension is set on fire in a vertical position whereby the flame on a scale from V – 0 has to extinguish itself within 10 seconds without leaving any burning droplets.
Cabinet "U" handles, type ESD are made from a conductive plastic material which prevents electrostatic loading. The imprint "ESD" on the surface of the handle defines the special antistatic properties according to IEC 61340-5-1.