ČSN EN 60669-1 ed. 2

This part of IEC 60669 applies to manually operated general purpose switches, for a.c. only with a rated voltage not exceeding 440 V and a rated current not exceeding 63 A, intended for household and similar fixed-electrical installations, either indoors or outdoors. The rated current is limited to 16 A maximum for switches provided with screwless terminals. The standard also applies to boxes for switches, with the exception of mounting boxes for flush-type switches. It also applies to switches such as: - switches incorporating pilot lights; - electromagnetic remote control switches (particular requirements are given in part 2); - switches incorporating a time-delay device (particular requirements are given in part 2); - combinations of switches and other functions (with the exception of switches combined with fuses); - electronic switches (particular requirements are given in part 2); - switches having facilities for the outlet and retention of flexible cables (see annex B). Switches complying with this standard are suitable for use at ambient temperatures not normally exceeding 25 °C, but occasionally reaching 35 °C.