BS 4177:1992:2007 Edition

This British Standard specifies requirements and tests for those cooker control units primarily intended for the control of the electric supply to cookers consisting of a main switch with certain auxiliaries and rated at a voltage not exceeding 250 V at 50 Hz. Such units comprise the following:

1. a main switch, for controlling the electric supply to the cooker, having a rated current not exceeding 45 A;

2. a socket-outlet and associated switch having a rated current not exceeding 15 A. Cooker control units complying with this standard are suitable for use under the following conditions:

3. in air temperatures from – 5 °C to +40 °C with an average value over a period of 24 h not exceeding +25 °C;

4. where the altitude of the site of installation does not exceed 2 000 m;

5. in an atmosphere not subject to pollution by smoke, chemical fumes, rain, spray, prolonged periods of high humidity or other conditions.

NOTE 1 Direct radiation from the sun should be avoided and instructions to this effect are recommended.

In locations where special conditions prevail, e.g. in ships and vehicles, and in hazardous locations, for instance where explosions are liable to occur, special constructions may be required. Appendix A gives a guideline regarding the EMC Directive 89/336/EEC.

NOTE 2 The titles of the publications referred to in this standard are listed on the inside back cover.

Safety requirements and tests for the control of the electricity supply to cookers and similar household electrical appliances.