BS EN 50131-1:2006+A3:2020

BS EN 50131-1:2006+A3:2020

Alarm systems. Intrusion and hold-up systems. System requirements

Status : Current, Under review   Published : May 2008



What is BS EN 50131-1:2018+A3:2020 about?

This is the third amendment to the first standard in a multi-part European series on intrusion and hold-up alarm systems (I&HAS).

BS EN 50131-1:2018+A3:2020 sets out system requirements for I&HAS installed in buildings using specific or non-specific wired interconnections or wire-free interconnections. It also applies to intruder alarm systems that include only intrusion detectors, and to hold-up alarm systems that include only hold-up devices.

Who is BS EN 50131-1:2018+A3:2020 for?

  • Purchasers and specifiers of I&HAS in any sector
  • Manufacturers
  • Consultants
  • Designers
  • Installers and maintainers of I&HAS in the electronic security sector
  • Insurers, the police and related certification bodies

Why should you use BS EN 50131-1:2018+A3:2020?

This European standard specifies performance requirements for intrusion and hold-up alarm systems (I&HAS) installed in buildings, and includes four security grades and four environmental classes.

It is the fundamental specification for the intruder and hold-up alarm system industry and is recognized throughout the UK and Europe, and elsewhere in the world.

BS EN 50131-1:2018+A3:2020 is significant to installers where conformance is mandated by the National Police Chiefs Council and Police Scotland policies for security systems; and is frequently requested by insurers and other specifiers.

The purpose of an I&HAS is to enhance the security of the supervised premises. To maximize its effectiveness an I&HAS should be integrated with appropriate physical security devices and procedures. This is particularly important to higher grade I&HAS.

BS EN 50131-1:2018+A3:2020 is intended to assist insurers, intruder alarm companies, customers and the police in achieving a complete and accurate specification of the supervision required in particular premises, but it does not specify the type of technology, the extent or degree of detection, nor does it necessarily cover all of the requirements for a particular installation.

A key feature is that the standard describes four grades of alarm system:

  • Grade 1: Low risk. An intruder or robber is expected to have little knowledge of I&HAS and be restricted to a limited range of easily available tools.
  • Grade 2: Low to medium risk. An intruder or robber is expected to have a limited knowledge of I&HAS and the use of a general range of tools and portable instruments (e.g. a multi-meter).
  • Grade 3: Medium to high risk. An intruder or robber is expected to be conversant with I &HAS and have a comprehensive range of tools and portable electronic equipment.
  • Grade 4: High risk. To be used when security takes precedence over all other factors. An intruder or robber is expected to have the ability or resource to plan an intrusion or robbery in detail and have a full range of equipment including means of substitution of components in an I&HAS.

This enables manufacturers, installers, purchasers and procurers to be sure that an alarm system is fit for purpose and meets the risk assessment criteria. In the UK, the standard’s also used by the accredited certification bodies for the industry.

NOTE: Recommendations for design, planning, operation, installation and maintenance are given in Application Guidelines CLC/TS 50131-7.


BS EN 50131-1:2018+A3:2020 contributes to UN Sustainable Development Goal 9 on industry, innovation and infrastructure because it supports the protection of infrastructures.



What’s new about BS EN 50131-1:2018+A3:2020?

This third amendment deals with concerns raised by national committees during the preparation of Amendment 2 to include a specific type of interconnection monitoring not covered in the previous editions. A framework has also been added for an increasingly common method of connecting to and controlling alarm systems remotely. Other minor changes include updates to normative references, abbreviations and definitions.

Standard NumberBS EN 50131-1:2006+A3:2020
TitleAlarm systems. Intrusion and hold-up systems. System requirements
StatusCurrent, Under review
Publication Date15 May 2008
Normative References(Required to achieve compliance to this standard)EN 50136-1:2012, EN 50131-6:2008, CLC/TS 50131-12:2016, EN 50130-5:2011
Informative References(Provided for Information)CLC/TS 50131-7:2010, IEC 60065:2014, IEC 60950-1:2005, EN 60065:2014, IEC 61000-6-3:2006, EN 61000-6-3:2001, EN 60950-1:2001, EN 50131-3:2009, BS EN IEC 62368-1:2020+A11:2020, EN IEC 62368-1:2020, EN 50130-4:2011, IEC 62368-1:2014
ReplacesBS EN 50131-1:1997
International RelationshipsEN 50131-1:2006/A3:2020
Amended ByAmendment, June 2020; Corrigendum, January 2018
Draft Superseded By19/30392766 DC
DescriptorsAlarm systems, Performance testing, Safety measures, Warning devices, Safety devices
Title in FrenchSystèmes d'alarme. Systèmes d'alarme contre l'intrusion et les hold-up Exigences système
Title in GermanAlarmanlagen. Einbruch- und Überfallmeldeanlagen Systemanforderungen
ISBN978 0 539 04185 9
File Size3.543 MB

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