EN 2995-004:2006
(Main)Aerospace series - Circuit breakers, single-pole, temperature compensated, rated current 1 A to 25 A - Part 004: With signal contact - Product standard
Aerospace series - Circuit breakers, single-pole, temperature compensated, rated current 1 A to 25 A - Part 004: With signal contact - Product standard
This standard specifies the characteristics of single-pole circuit breakers, temperature compensated with a rated current from 1 A to 25 A, used in aircraft on-board circuits at a temperature between – 55 °C and 125 °C and at an altitude of 22 000 m max.
These circuit breakers are operated by a push-pull type single push button (actuator), with delayed action "trip-free" tripping with a signal contact which is open when main contacts are closed, and inversely.
They will continue to function up to the short-circuit current.
Luft- und Raumfahrt - Schutzschalter, einpolig, Temperaturkompensiert, Nennströme von 1 A bis 25 A - Teil 004: Mit Signalkontakt - Produktnorm
Diese Norm legt die Eigenschaften von einpoligen, temperaturkompensierten Schutzschaltern mit Nennströmen von 1 A bis 25 A fest, die in Luftfahrzeug Bordnetzen im Temperaturbereich zwischen –55 °C und 125 °C und bei einer maximalen Höhenlage von 22 000 m verwendet werden.
Diese Schutzschalter besitzen einen Druckknopf (Betätigungsknopf) mit Druck Zug Betätigung mit Freiaus¬lösung und verzögerter Auslösefunktion und einen Signalkontakt, der bei geschlossenen Hauptkontakten geöffnet ist und umgekehrt.
Ihre Funktion ist bis zum Kurzschlussstrom sichergestellt.
Série aérospatiale - Disjoncteurs unipolaires compensés en température, intensités nominales 1 A à 25 A - Partie 004 : Avec contact de signalisation - Norme de produit
Aeronavtika - Odklopniki, enopolni, temperaturno kompenzirani, nazivni tok od 1 A do 25 A - 004. del: S signalnim kontaktom - Standard za proizvod
General Information
- Status
- Published
- Publication Date
- 22-Aug-2006
- Withdrawal Date
- 27-Feb-2007
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 01-Jun-2017
- Completion Date
- 28-Jan-2026
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 2995-004:2006 is the CEN product standard for aerospace single‑pole, temperature‑compensated circuit breakers with a signal contact. It covers units rated from 1 A to 25 A, designed for aircraft on‑board circuits operating between −55 °C and 125 °C and at altitudes up to 22 000 m. The breakers use a push‑pull single push‑button actuator and provide delayed action, trip‑free tripping while maintaining a signal contact that is open when the main contacts are closed (and vice versa).
Key Topics
- Rated range and environment: 1 A to 25 A; operation −55 °C to 125 °C; max altitude 22 000 m.
- Actuation and safety: Push‑pull single push button with delayed-action, trip‑free tripping and a dedicated signal contact for status monitoring.
- Electrical ratings: Nominal voltages include 28 V d.c. and 115 V a.c. (360–800 Hz). Signal circuit parameters and low‑current performance for monitoring are defined.
- Mechanical and installation data: Typical mass is ≤ 28 g (delivery code A with hardware). Recommended attaching nut torque ≈ 4.75 Nm; connection hardware torque ≈ 1.6 Nm. Panel cut‑out and attachment follow TR 6083 and EN 2995-001.
- Performance: Continued operation under short‑circuit conditions, specified voltage drops at rated and low currents, tripping thresholds across ambient conditions, vibration and shock resistance, and defined endurance cycles for main and signal contacts.
Applications
These circuit breakers are specified for use where reliable overcurrent protection, environmental robustness and status signalling are required in aerospace electrical systems. Typical applications include:
- Protection of aircraft on‑board circuits and subsystems where temperature and altitude extremes apply.
- Panels requiring local indication of breaker status via the signal contact for flight‑deck or system monitoring.
- Systems demanding trip‑free behaviour to ensure safe interruption under overload and short‑circuit conditions.
Benefits to engineers and procurement teams:
- Consistent, interoperable hardware per a harmonised European aerospace product standard.
- Defined mechanical and electrical interfaces to simplify installation and maintenance.
- Clear performance metrics for design validation and qualification testing.
Related Standards
- EN 2995-001 - Technical specification for the same aerospace breaker family.
- EN 3155-016 - Electrical contact types relevant to terminals.
- EN 6113 - Connecting and attachment hardware for circuit breakers.
- TR 6083 - Panel cut‑outs for installation of electrical components.
- Referenced military tool standards (MIL‑I‑81969) and color standards (FED‑STD‑595B) for ancillary requirements.
For implementation, refer to the full text of EN 2995-004:2006 and associated EN 2995 series documents to ensure correct selection, installation torque, panel cut‑outs and verification testing for your aerospace application.
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Frequently Asked Questions
EN 2995-004:2006 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Circuit breakers, single-pole, temperature compensated, rated current 1 A to 25 A - Part 004: With signal contact - Product standard". This standard covers: This standard specifies the characteristics of single-pole circuit breakers, temperature compensated with a rated current from 1 A to 25 A, used in aircraft on-board circuits at a temperature between – 55 °C and 125 °C and at an altitude of 22 000 m max. These circuit breakers are operated by a push-pull type single push button (actuator), with delayed action "trip-free" tripping with a signal contact which is open when main contacts are closed, and inversely. They will continue to function up to the short-circuit current.
This standard specifies the characteristics of single-pole circuit breakers, temperature compensated with a rated current from 1 A to 25 A, used in aircraft on-board circuits at a temperature between – 55 °C and 125 °C and at an altitude of 22 000 m max. These circuit breakers are operated by a push-pull type single push button (actuator), with delayed action "trip-free" tripping with a signal contact which is open when main contacts are closed, and inversely. They will continue to function up to the short-circuit current.
EN 2995-004:2006 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 2995-004:2006 has the following relationships with other standards: It is inter standard links to EN 3155-016:2025, EN 2995-001:2023, EN 3155-002:2024, EN 4728:2015. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 2995-004:2006 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)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Odklopniki, enopolni, temperaturno kompenzirani, nazivni tok od 1 A do 25 A - 004. del: S signalnim kontaktom - Standard za proizvodLuft- und Raumfahrt - Schutzschalter, einpolig, Temperaturkompensiert, Nennströme von 1 A bis 25 A - Teil 004: Mit Signalkontakt - ProduktnormSérie aérospatiale - Disjoncteurs unipolaires compensés en température, intensités nominales 1 A à 25 A - Partie 004 : Avec contact de signalisation - Norme de produitAerospace series - Circuit breakers, single-pole, temperature compensated, rated current 1 A to 25 A - Part 004: With signal contact - Product standard49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 2995-004:2006SIST EN 2995-004:2009en,de01-junij-2009SIST EN 2995-004:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2995-004August 2006ICS 49.060 English VersionAerospace series - Circuit breakers, single-pole, temperaturecompensated, rated current 1 A to 25 A - Part 004: With signalcontact - Product standardSérie aérospatiale - Disjoncteurs unipolaires compensés entempérature, intensités nominales 1 A à 25 A - Partie 004 :Avec contact de signalisation - Norme de produitLuft- und Raumfahrt - Schutzschalter, einpolig,Temperaturkompensiert, Nennströme von 1 A bis 25 A -Teil 004: Mit Signalkontakt - ProduktnormThis European Standard was approved by CEN on 5 June 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2995-004:2006: ESIST EN 2995-004:2009
Aerospace series – Circuit breakers, single-pole, temperature compensated, rated current 1 A to 25 A – Part 001: Technical specification.
EN 3155-016,
Aerospace series – Electrical contacts used in elements of connection – Part 016: Contacts, electrical, male, type A, crimp, class S – Product standard.
EN 6113,
Aerospace series – Circuit breaker, connecting and attachment hardware. 1) TR 6083,
Aerospace series – Cut-outs for installation of electrical components. 2) MIL-I-81969/1A,
Installing and removal tools, connector electrical contact, type III, class 2, composition C. 3) MIL-I-81969/14C,
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