BS 1363-4:2016+A1:2018

This part of BS1363specifies requirements for13A fused fixed connection units for household, commercial and light industrial purposes, with particular reference to safety in normal use. The connection units are suitable for the connection of appliances, in a.c. circuits only, operating at voltages not exceeding250Vr.m.s. at50Hz.

Requirements are specified for connection units incorporating a fuse‑link conforming to BS1362:1973.

Requirements are specified for13A connection units with or without associated controlling switches, for flush mounting in suitable enclosures, e.g.boxes conforming to BS4662:2006+A1:2009, or for surface or panel mounting. Connection units are intended for use with cables conforming to BS6004:2012having copper conductors. Connection units with cable outlets are additionally intended for use with flexible cables, conforming to the relevant part of BSEN50525(seeAnnexG), on the load (output) side.

This standard does not apply to connection units incorporating screwless terminals for the connection of external conductors of the following types:

• flat quick‑connect terminals;

• insulation‑piercing connecting devices; and

• twist‑on connecting devices.

NOTE1 The titles of the publications referred to in this part of BS1363are listed in the bibliography.

NOTE2 Requirements for electromagnetic compatibility are not given for the following reason.

A connection unit is mechanical by nature of construction. A connection unit does not emit intolerable electromagnetic interference and the product is immune from electromagnetic interference.