BS EN 50428:2005 Switches for household and similar fixed electrical installations - Collateral standard - Switches and related accessories for use in home and building electronic systems (HBES)
This clause of Part 2-1 is replaced by the following:
This collateral standard applies to HBES switches with a working voltage not exceeding 250 V a.c.
and a rated current up to and including 16 A. for household and similar fixed electrical installations
either indoors or outdoors and to associated electronic extension units.
It applies
? to HBES switches for the operation of lamp circuits and the control of the brightness of lamps
(dimmers) as well as the control of the speed of motors (e.g. those used in ventilating fans) and
for other purposes (e.g. heating installations ),
? to sensors, actuators, switched-socket-outlets, associated electronic extension units, etc
In the following document the word " HBES switch " is applied to describe all kind of HBES devices
e.g. switches, sensors, actuators, switched-socket-outlets, associated electronic extension units,
etc.
The operation and control are performed
? intentionally by a person via an actuating member, a key, a card, etc., via a sensing surface or
a sensing unit, by means of touch, proximity, turn, optical, acoustic, thermal,
? by physical means, e.g. light, temperature, humidity, time, wind velocity, presence of people,
? by any other influence;
and transmitted
? by an electronic signal via several media, e.g. powerline (mains), twisted pair, optical fibre,
radio frequency, infra-red, etc?
HBES Switches complying with this standard are suitable for use at ambient temperatures not
normally exceeding 25 °C, but occasionally reaching 35 °C.
There is no need for functional safety requirements in this standard. Functional safety requirements
shall be covered by the standards of the devices which are controlled by the HBES.
In locations where special conditions prevail, such as higher temperature special constructions may
be required.
NOTE 1 This annex is not intended to cover devices falling within the scope of IEC 60730.
NOTE 2 Electronic switches without a mechanical switch in the main circuit do not provide a "full off-state". Therefore, the
circuit on the load side should be considered to be live.
NOTE 3 HBES-switches to be connected to telecommunication networks should fulfil the relevant standard.
BS EN 50428:2005 history
2016BS EN 60669-2-5:2016 Switches for household and similar fixed electrical installations. Particular requirements. Switches and related accessories for use in home and building electronic systems (HBES)
2005BS EN 50428:2005+A2:2009 Switches for household and similar fixed electrical installations - Collateral standard - Switches and related accessories for use in home and building electronic systems (HBES)
2005BS EN 50428:2005+A1:2007 Switches for household and similar fixed electrical installations - Collateral standard - Switches and related accessories for use in home and building electronic systems (HBES)
2005BS EN 50428:2005 Switches for household and similar fixed electrical installations - Collateral standard - Switches and related accessories for use in home and building electronic systems (HBES)