IS 1293 : 2019 Plugs and Socket-Outlets for Household and Similar Purposes of Rated Voltage up to and Including 250 V and Rated Current up to and Including 16 A — Specification

ICS 29.120.30

ETD 14

Revised Standard from Last Update.


This standard applies to plugs and fixed or portable socket-outlets for ac only, with and without earthing contact, with a rated voltage not exceeding 250 V and a rated current not exceeding 16 A intended for household and similar purposes, either indoors or outdoors.

The rated current is limited to 16 A maximum for fixed socket-outlets provided with screwless terminals.

This standard does not cover requirement for flush mounting boxes, however it covers only those requirements for surface-type mounting boxes which are necessary for the tests on the socket-outlet.

This standard applies also to plugs incorporated in cord sets and to plugs and portable socket-outlets incorporated in cord extension sets. It also applies to plugs and socket-outlets which are a component of an appliance, unless otherwise stated in the standard for the relevant appliance.

This standard does not apply to,

a) plugs, socket-outlets and couplers for industrial purposes.

b) appliance couplers.

c) plugs, fixed and portable socket-outlets for extra low voltage (ELV).

NOTE — ELV values are specified in relevant ELV standard, if any.

d) fixed socket-outlets combined with fuses, automatic switches, etc.

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.


1 General requirements for mounting boxes are given in IS 14772.

2 Socket-outlets with pilot lights are allowed provided that pilot lights comply with the relevant standard, if any.

3 Plugs and socket-outlets complying with this standard should be suitable for use at ambient temperatures not normally exceeding +45 °C, but their average over a period of 24 h reaches a temperature +40 °C, with a lower limit of the ambient air temperature of –5 °C.

4 Socket-outlets complying with this standard are only suitable for incorporation in equipment in such a way and in such a place that it is unlikely that the ambient surrounding the socket- outlet reaches a temperature exceeding 45°C.

5 only plugs and socket outlets of dimensions as per Annex B are covered under the scope of this standard.

6 Requirements for 25 A is under consideration.


The following standards are necessary adjuncts to this standard:

292 : 1983 Leaded brass ingots and castings

694 : 2010 polyvinyl chloride insulated unsheathed and sheathed cables/cords with rigid and flexible conductor for rated voltages up to and including 450/750 V

1401 : 2008 Protection of persons and equipment by enclosures - Probes for verification

1885 (Part 74) : Electrotechnical vocabulary:

2012 Part 74 electrical and magnetic devices

2824 : 2007 Method for determining of the proof and the comparative tracking indices of solid insulating materials

3854 : 1997 Switches for household and similar fixed-electrical installations

4160 : 2005 Interlocking switch socket outlet — Specification

9000 (Part 5/Sec 1 Basic environmental testing and 2) : 1981 procedures for electronic and electrical items : Part 5 Damp heat (cyclic) test

9000 (Part 7/Sec7) : 2006 Basic Environmental testing procedures for electronic and electrical items : Part 7 Impact Test, Test Eh: Hammer tests

9968 (Part 1) : 1988 Elastomer insulated cables: Part 1 For working voltages upto and including 1 100 V

10322 (Part 5/Sec 7) : 2017 Luminaries: Part 5 Particular Requirements, Section 7 Lighting Chains (first revision)

11000 (Part 2/Sec 1) : 2008 Fire hazard testing : Part 2 Test methods, Section 1 Glow-wire apparatus and common test procedure

14340 : 1996 Brass for current carrying parts in electrical wiring accessories

14763 : 2000 Conduits for electrical purposes — Outside diameters of conduits for electrical installation and threads for conduits and fittings

14772 : 2000 General requirements for enclosures for accessories for household and similar fixed electrical installations [Superseding IS 5133 (Parts 1 and 2)]

IS/IEC 60320 (All parts) Appliance couplers for household and similar general purposes

IS/IEC 60529 : 2001 Degrees of protection provided by enclosures (IP Code)

IS/IEC 61058 Switches for appliances (Part 1) : 2000

IEC 60068 (Part 2/Sec 31) : 2008 Environmental testing — Part 2-31: Tests — Test Ec: Rough handling shocks, primarily for equipment-type specimens