EN 60399:2004/A1:2008
(Amendment)Barrel thread for lampholders with shade holder ring
Barrel thread for lampholders with shade holder ring
Specifies dimensions and tolerances of barrel threads for lampholders mentioned above with shade holder ring.
Mantelgewinde für Lampenfassungen mit Schirmträgerring
Filetage à filet rond pour douilles avec bague support d'abat-jour
Sodčkasti navoj za okove za žarnice in sijalke z nosilnim obročkom za senčnik (IEC 60399:2004/A1:2008)
General Information
- Status
- Published
- Publication Date
- 16-Sep-2008
- Withdrawal Date
- 31-Jul-2011
- Technical Committee
- CLC/TC 34 - 'Lamps and related equipment
- Drafting Committee
- IEC/SC 34B - IEC_SC_34B
- Parallel Committee
- IEC/SC 34B - IEC_SC_34B
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 17-Sep-2008
- Completion Date
- 17-Sep-2008
Relations
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 29-Jan-2023
Overview
EN 60399:2004/A1:2008 (identical to IEC 60399:2004/A1:2008) is a European amendment that defines the barrel thread for lampholders with shade holder ring. The amendment introduces a clear scope, definitions and mandatory requirements for barrel threads used to retain shades and shade rings on lampholders. It was approved by CENELEC in 2008 and supplements the base EN 60399:2004 text.
Key Topics
- Scope and purpose
- Applies to lampholders designed with an external barrel thread that supports a shade ring and to the barrel threads of those shade rings.
- Definitions
- Clear terminology such as barrel thread (external thread on the outer shell of a lampholder) and shade ring (cylindrical component with internal thread to retain a shade).
- Mandatory vs. optional use
- Barrel threads specified in this standard are mandatory for general use except:
- For B15 and B22 lampholders, alternative barrel threads are allowed if they comply with Figure 8 of IEC 61184.
- Other special lampholders may use alternative barrel threads when the lampholder will be installed only by the luminaire or equipment manufacturer.
- Barrel threads specified in this standard are mandatory for general use except:
- Dimensional requirements and gauges
- The amendment instructs insertion of existing datasheets into the subclause covering dimensional requirements and gauges (datasheets define the physical tolerances and gauges used for conformity checks).
- Normative references
- The standard cross-references key lampholder and luminaire documents that are indispensable for application and safety assessment.
Applications
Who uses this standard and why:
- Lamp and lampholder manufacturers - to ensure mechanical compatibility and secure mounting of shades across products.
- Luminaire designers and manufacturers - to select lampholders and shade rings that meet interchangeability and safety expectations.
- Test laboratories and conformity assessors - to verify dimensional compliance using gauges and datasheets referenced by the standard.
- Compliance officers and procurement teams - to specify standardized barrel threads in product specifications and procurement contracts.
Practical benefits:
- Ensures interchangeability of shades and rings across products.
- Supports mechanical safety by standardizing thread geometry and gauges.
- Simplifies design and production by referencing accepted dimensional datasheets.
Related Standards
Relevant normative references (included or cited in the amendment):
- IEC/EN 60238 - Edison screw lampholders
- IEC/EN 60400 - Lampholders for tubular fluorescent lamps and starterholders
- IEC/EN 60598-1 - Luminaires - General requirements and tests
- IEC/EN 60838-1 - Miscellaneous lampholders - General requirements and tests
- IEC/EN 61184 - Bayonet lampholders
Keywords: barrel thread, lampholders, shade holder ring, EN 60399:2004/A1:2008, IEC 60399, lampholder dimensions, gauges, lampholder standards, shade ring compatibility.
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Frequently Asked Questions
EN 60399:2004/A1:2008 is a amendment published by CLC. Its full title is "Barrel thread for lampholders with shade holder ring". This standard covers: Specifies dimensions and tolerances of barrel threads for lampholders mentioned above with shade holder ring.
Specifies dimensions and tolerances of barrel threads for lampholders mentioned above with shade holder ring.
EN 60399:2004/A1:2008 is classified under the following ICS (International Classification for Standards) categories: 29.140.10 - Lamp caps and holders. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 60399:2004/A1:2008 has the following relationships with other standards: It is inter standard links to EN 60598-1:2008, EN 60238:2004, EN 60400:2008, EN 61184:2008, EN 60838-1:2004, EN 60399:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 60399:2004/A1:2008 is associated with the following European legislation: EU Directives/Regulations: 2006/95/EC, 2014/35/EU, 2014/53/EU. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 60399:2004/A1:2008 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2008
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Barrel thread for lampholders with shade holder ring (IEC 60399:2004/A1:2008)
Mantelgewinde für Lampenfassungen mit Schirmträgerring (IEC 60399:2004/A1:2008)
Filetage à filet rond pour douilles avec bague support d'abat-jour (CEI
60399:2004/A1:2008)
Ta slovenski standard je istoveten z: EN 60399:2004/A1:2008
ICS:
29.140.10 Grla in držala žarnic Lamp caps and holders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 60399/A1
NORME EUROPÉENNE
September 2008
EUROPÄISCHE NORM
ICS 29.140.10
English version
Barrel thread for lampholders
with shade holder ring
(IEC 60399:2004/A1:2008)
Filetage à filet rond pour douilles Mantelgewinde für Lampenfassungen
avec bague support d'abat-jour mit Schirmträgerring
(CEI 60399:2004/A1:2008) (IEC 60399:2004/A1:2008)
This amendment A1 modifies the European Standard EN 60399:2004; it was approved by CENELEC on
2008-08-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CENELEC member into its own language and notified to the
Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60399:2004/A1:2008 E
Foreword
The text of document 34B/1382/FDIS, future amendment 1 to IEC 60399:2004, prepared by SC 34B,
Lamp caps and holders, of IEC TC 34, Lamps and related equipment, was submitted to the
IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 60399:2004 on
2008-08-01.
The following dates were fixed:
– latest date by which the amendment has to be
implemented at national level by publication of
(dop) 2009-05-01
an identical national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2011-08-01
with the amendment have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of amendment 1:2008 to the International Standard IEC 60399:2004 was approved by
CENELEC as an amendment to the European Standard without any modification.
__________
- 3 - EN 60399:2004/A1:2008
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
1) 2)
IEC 60238 - Edison screw lampholders EN 60238 2004
+ corr. January 2005
...
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