SIST EN 3773-006:2017
(Main)Aerospace series - Circuit breakers, single-pole, temperature compensated, rated currents 1 A to 25 A - Part 006: 6,3 mm blade terminal - Product standard
Aerospace series - Circuit breakers, single-pole, temperature compensated, rated currents 1 A to 25 A - Part 006: 6,3 mm blade terminal - Product standard
This European 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 15 000 m max.
These circuit breakers are operated by a push-pull type single push button (actuator), with delayed action "trip-free" tripping.
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 006: Flachsteckverbinder 6,3 mm - Produktnorm
Série aérospatiale - Disjoncteurs unipolaires compensés en température, intensités nominales 1 A à 25 A - Partie 006 : Raccordement par lame 6,3 mm - Norme de produit
Aeronavtika - Odklopniki, enopolni, temperaturno kompenzirani, naznačeni tok od 1 A do 25 A - 006. del: Ploski spoji 6,3 mm - Standard za proizvod
Ta evropski standard določa značilnosti enopolnih temperaturno kompenziranih odklopnikov z naznačenim tokom od 1 A do 25 A, ki se uporabljajo v letalskih vezjih pri temperaturi med –55 °C in 125 °C ter na največji nadmorski višini 15.000 m.
Ti odklopniki se upravljajo z enim gumbom (sprožilom) vrste potisni-povleci, z zakasnjenim proženjem brez sprožila.
Delovali bodo do kratkega stika.
General Information
- Status
- Published
- Publication Date
- 12-Jul-2017
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 15-Jun-2017
- Due Date
- 20-Aug-2017
- Completion Date
- 13-Jul-2017
Overview
SIST EN 3773-006:2017 is a European standard developed by CEN that specifies the product requirements for single-pole, temperature-compensated circuit breakers with rated currents from 1 A to 25 A. Designed specifically for aerospace applications, these circuit breakers operate reliably in aircraft on-board electrical circuits within a wide temperature range from ‒55 °C to 125 °C and at altitudes up to 15,000 meters. Featuring a push-pull actuator with delayed action "trip-free" tripping, the devices ensure safety by continuing operation even up to short-circuit currents. This standard ensures consistency, reliability, and safety in aerospace electrical protection components.
Key Topics
Temperature Compensated Circuit Breakers: The standard ensures circuit breakers maintain performance despite extreme temperature fluctuations encountered in aerospace environments.
Rated Current Range: Covers circuit breakers rated for currents between 1 ampere and 25 amperes, suitable for various aircraft electrical loads.
Push-Pull Actuator Design: Incorporates a single push button for operation, allowing delayed action and trip-free release mechanisms to prevent electrical faults from damaging the system.
Altitude Performance: Devices are validated to function effectively at altitudes up to 15,000 meters, ensuring reliability in high-flying aircraft.
Blade Terminal Specification: Defines a 6.3 mm blade terminal connection, facilitating standardized and secure electrical mounting.
Mechanical and Environmental Resistance: Specifies resistance to vibrations, shocks, humidity, corrosion, contaminating liquids, and overvoltage events such as lightning, ensuring robust operation in harsh aerospace conditions.
Electrical Characteristics: Sets nominal voltages for operational circuits (28 V dc, 26 V ac at 400 Hz, and 115 V ac at 400 Hz) and details voltage drops, tripping thresholds, overload endurance, and dielectric rigidity.
Marking and Identification: Defines mandatory markings including manufacturer’s part number, rated current code, manufacturing date, and terminal identification for traceability and correct installation.
Applications
Aircraft Electrical Protection: SIST EN 3773-006:2017 circuit breakers are essential for protecting aircraft electrical circuits from overloads and short circuits, ensuring occupant safety and system integrity.
Avionics Systems: Used in controlling and protecting sensitive onboard avionics equipment, improving operation reliability under temperature and altitude variations.
Power Distribution: Serve as key components in distributing electrical power within aircraft, preventing damage to reconfigurable systems and wiring harnesses.
Maintenance and Replacement: The standard facilitates procurement and replacement of aerospace circuit breakers by specifying uniform dimensions, ratings, and performance criteria.
High-Reliability Environments: Suitable for defense and civil aerospace sectors where equipment must meet strict compliance with international safety and performance standards.
Related Standards
EN 3773-001: Technical specifications for single-pole, temperature-compensated circuit breakers referenced for detailed electrical and mechanical characteristics.
EN 3841 Series: Test methods for circuit breakers including terminal strength and environmental endurance tests.
EN 6113: Defines connecting and attachment hardware requirements for aerospace circuit breakers ensuring standardized installation interfaces.
EN 2282: Aerospace series characteristics of aircraft electrical supplies, providing context for voltage and frequency requirements.
IEC 60934: International standard covering circuit breakers for equipment, complementing aerospace-specific requirements.
Conclusion
SIST EN 3773-006:2017 is a vital standard for aerospace engineers, designers, and maintenance technicians overseeing the selection, application, and quality assurance of single-pole, temperature-compensated circuit breakers with 6.3 mm blade terminals. Compliance with this standard supports enhanced operational safety, consistent performance under extreme conditions, and interoperability within the complex electrical ecosystems of modern aircraft. Utilizing this standard helps aerospace organizations meet regulatory requirements while optimizing durability and reliability of on-board electrical protection devices.
Frequently Asked Questions
SIST EN 3773-006:2017 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Circuit breakers, single-pole, temperature compensated, rated currents 1 A to 25 A - Part 006: 6,3 mm blade terminal - Product standard". This standard covers: This European 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 15 000 m max. These circuit breakers are operated by a push-pull type single push button (actuator), with delayed action "trip-free" tripping. They will continue to function up to the short-circuit current.
This European 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 15 000 m max. These circuit breakers are operated by a push-pull type single push button (actuator), with delayed action "trip-free" tripping. They will continue to function up to the short-circuit current.
SIST EN 3773-006:2017 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.
SIST EN 3773-006:2017 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-september-2017
$HURQDYWLND2GNORSQLNLHQRSROQLWHPSHUDWXUQRNRPSHQ]LUDQLQD]QDþHQLWRNRG
$GR$GHO 3ORVNLVSRMLPP6WDQGDUG]DSURL]YRG
Aerospace series - Circuit breakers, single-pole, temperature compensated, rated
currents 1 A to 25 A - Part 006: 6,3 mm blade terminal - Product standard
Luft- und Raumfahrt - Schutzschalter, einpolig, temperaturkompensiert, Nennströme von
1 A bis 25 A - Teil 006: Flachsteckverbinder 6,3 mm - Produktnorm
Série aérospatiale - Disjoncteurs unipolaires compensés en température, intensités
nominales 1 A à 25 A - Partie 006 : Raccordement par lame 6,3 mm - Norme de produit
Ta slovenski standard je istoveten z: EN 3773-006:2017
ICS:
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 3773-006
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2017
EUROPÄISCHE NORM
ICS 49.060
English Version
Aerospace series - Circuit breakers, single-pole,
temperature compensated, rated currents 1 A to 25 A -
Part 006: 6,3 mm blade terminal - Product standard
Série aérospatiale - Disjoncteurs unipolaires Luft- und Raumfahrt - Schutzschalter, einpolig,
compensés en température, intensités nominales 1 A à temperaturkompensiert, Nennströme von 1 A bis 25 A
25 A - Partie 006 : Raccordement par lame 6,3 mm - - Teil 006: Flachsteckverbinder 6,3 mm - Produktnorm
Norme de produit
This European Standard was approved by CEN on 20 February 2017.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard 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 CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3773-006:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Dimensions and mass . 4
4 Characteristics . 7
5 Designation. 11
6 Rated current code . 11
7 Hardware delivery codes . 12
8 Marking . 12
9 Technical specification . 12
European foreword
This document (EN 3773-006:2017) has been prepared by the Aerospace and Defence Industries
Association of Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
ASD, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2017, and conflicting national standards shall
be withdrawn at the latest by December 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
the United Kingdom.
1 Scope
This European 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 15 000 m max.
These circuit breakers are operated by a push-pull type single push button (actuator), with delayed action
"trip-free" tripping.
They will continue to function up to the short-circuit current.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 2282, Aerospace series — Characteristics of aircraft electrical supplies
EN 3773-001, Aerospace series — Circuit breakers, single-pole, temperature compensated, rated currents
1 A to 25 A — Part 001: Technical specification
EN 3841-100, Aerospace series — Circuit breakers — Test methods — Part 100: General
EN 3841-505, Aerospace series — Circuit breakers — Test methods — Part 505: Strength of main terminals
EN 6113, Aerospace series — Circuit breaker, connecting and attachment hardware
EN 9133, Aerospace series — Quality Management Systems — Qualification Procedure for Aerospace
Standar
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