SWITCHES FOR HOUSEHOLD AND SIMILAR
FIXED-ELECTRICAL INSTALLATIONS :
PART 1 : GENERAL REQUIREMENTS
(FIRST REVISION)
This part of MS 616 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.
NOTES.
1. An extension of the scope to switches for rated voltages higher than 440 V is under consideration
The standard also applies to boxes for switches, with the exception of mounting boxes for
flush-type switches.
2. In this standard specific requirements are given for boxes, while general requirements for boxes for ordinary*
flush type switches are given in IEC 60670.
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).
3. The minimum length of the flexible cable used with these switches may be governed by National Wiring Rules.
Switches complying with this standard are suitable for use at ambient temperatures not
normally exceeding 25 °C, but occasionally reaching 35°C.
4. Additional requirements for flush-type non-ordinary switches are under consideration.
5. Switches complying with this standard are suitable only for incorporation in equipment in such a way and in such
a place that it is unlikely that the surrounding ambient temperature exceeds 35°C.
In locations where special conditions prevail, as in ships, vehicles and the like and in
hazardous locations, for example where explosions are liable to occur, special constructions
may be required.
* See note 1 to 7.1.4.
This standard does not include requirements and tests for switches with protection against
ingress of solid foreign bodies. These are under consideration.
Published
• (none) / MS IEC 60669-1:2004 / (none)
PDF
10/07/2019
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