DIN EN 60127-7:2016-09

This part of IEC 60127 contains requirements for miniature fuse-links for special applications. Miniature fuse-link for special applications are enclosed fuse-links which are not covered in the scope of IEC 60127-2, IEC 60127-3 or IEC 60127-4 and of rated breaking capacity not exceeding 50 kA, with a width and height not exceeding 12 mm and a length not exceeding 50 mm. This standard is applicable to fuse-links with a rated voltage not exceeding 1 000 V, a rated current not exceeding 20 A and a rated breaking capacity not exceeding 50 kA. It does not apply to fuses fully covered in the subsequent parts of IEC 60269-1. It does not apply to miniature fuse-links for appliances intended to be used under special conditions, such as in corrosive or explosive atmospheres. This standard applies in addition to the requirements of IEC 60127-1. Miniature fuse-links for special applications are not intended to be replaced by the end-user of an electrical / electronic appliance. The object of this standard is to establish uniform test methods for miniature fuse-links for special applications, so as to allow verification of the values (for example melting time and breaking capacity values) specified by the manufacturer. Compared to the previous edition, all clauses have been revised to reflect current shape and design requirements, taking into account the entire contents of the previous edition. A test PCB for top-mountable fuse links and test plans for homogeneous series have been specified. The responsible committee is DKE/K 663 "Gerätesicherungen (G-sicherungen)" ("Device fuses (miniature fuses)") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.