Customer Support: 131 242

  • Shopping Cart
    There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert
Celebrate World Standards Day. Save 10% with code WSD2026 until 31 Oct. Save now

BS EN 50491-3:2009

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

General requirements for home and building electronic systems (HBES) and building automation and control systems (BACS) Electrical safety requirements

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-07-2010

Superseded date

02-03-2018

Superseded by

BS EN IEC 63044-3:2018

$380.41
Including GST where applicable
Summarise this standard

Introduction
1 Scope
2 Normative references
3 Definitions and abbreviations
4 Classification of HBES/BACS network interfaces
5 Safety requirements and compliance criteria
Annex A (normative) - Special national conditions
Bibliography

Defines the electrical safety requirements for all devices connected to HBES/BACS.

Committee
IST/6
DevelopmentNote
Together with BS EN 50491-5-1, BS EN 50491-5-2 and BS EN 50491-5-3, it partially supersedes BS EN 50090-2-2. (07/2010)
DocumentType
Standard
Pages
22
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

This European Standard provides the electrical safety requirements for all devices connected to HBES/BACS.

This European Standard is applicable to

  • operator stations and other human system interface devices,

  • devices for management functions,

  • control devices, automation stations and application specific controllers,

  • field devices,

  • cabling and interconnection of devices.

This European Standard covers the following requirements and compliance criteria:

  • protection from hazards in the device;

  • protection from overvoltages on the network;

  • protection from touch current;

  • protection from hazards caused by different type of circuits;

  • protection of the communication wiring from overheating caused by excessive current.

Standards Relationship
EN 50491-3:2009 Identical
I.S. EN 50491-3:2009 Equivalent

⚠

A newer version of this standard is available.

View Current Edition
$380.41
Including GST where applicable