EN 3155-057:2006
(Main)Aerospace series - Electrical contacts used in elements of connection - Part 057: Contacts, electrical, female, thermocouple NiCr, type C, crimp, class T- Product standard
Aerospace series - Electrical contacts used in elements of connection - Part 057: Contacts, electrical, female, thermocouple NiCr, type C, crimp, class T- Product standard
This standard specifies the required characteristics, tests and tooling applicable to male electrical contacts, thermocouple, NiCr, type C, crimp, class T, used in elements of connection according to EN 3155-002.
It shall be used together with EN 3155-001.
The associated female contacts are defined in EN 3155-057.
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 057: Elektrische Thermobuchsenkontakte NiCr, Typ C, crimpbar, Klasse T - Produktnorm
Diese Norm legt die Anforderungen, Prüfungen und erforderlichen Werkzeuge für elektrische Thermobuch¬senkontakte NiCr, Typ C, crimpbar, Klasse T, zur Verwendung in elektrischen Verbindungselementen nach EN 3155 002 fest.
Sie ist in Verbindung mit EN 3155 001 anzuwenden.
Die zugehörigen Stiftkontakte sind in EN 3155 056 festgelegt.
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 057 : Contacts électriques, femelles, thermocouple NiCr, type C, à sertir, classe T - Norme de produit
Aeronavtika - Električni kontakti za uporabo v veznih elementih - 057. del: Kontakti, električni, ženski, termočlen NiCr, tip C, nagubani, razred T - Standard za proizvod
General Information
- Status
- Published
- Publication Date
- 04-Jul-2006
- Withdrawal Date
- 30-Jan-2006
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 05-Jul-2006
- Completion Date
- 05-Jul-2006
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 3155-057:2006 is a European standard published by CEN that defines female electrical contacts for thermocouples used in aerospace applications. Specifically, it details the requirements for NiCr (Nickel-Chromium) type C, crimp-style contacts classified as class T, intended for use at operating temperatures ranging from -65 °C to 260 °C. These contacts are essential components in aerospace electrical connectors, ensuring reliable and accurate thermal measurements within harsh environments.
This standard complements EN 3155-001 (Technical specifications) and EN 3155-002 (List and utilization of contacts), and aligns with the male contact standard EN 3155-056. Its main focus is on defining the physical dimensions, materials, marking, permissible cables, tooling, testing, and quality assurance for these critical electrical contacts.
Key Topics
Contact Characteristics
- Defines Type C female thermocouple contacts in NiCr alloy without protective plating.
- Specified for class T applications within -65 °C to 260 °C temperature range.
- Permissible cable sizes and conductors are standardized, ensuring compatibility.
Dimensions and Mass
- Precise dimensional requirements per size (e.g., sizes 16 and 20) ensure interchangeability.
- Detailed geometric and mass specifications promote design accuracy.
Marking and Identification
- Contacts are color-coded following ISO 8843 standards for alloy type and size identification.
- Marking methods include engraving, stamping, or pressing without deforming the contact.
Material and Cable Requirements
- Contacts are made from NiCr alloy, optimized for thermocouple functions.
- Cables used must comply with EN 4049 and cover specific American Wire Gauge (AWG) sizes for electrical compatibility.
Tooling Specifications
- Crimping tools conform to MIL-DTL-22520, with selector numbers designated for correct crimp quality.
- Insertion and extraction tools adhere to MIL-I-81969 standards, ensuring consistent contact installation and maintenance.
Testing and Quality Assurance
- Specifies extensive electrical, mechanical, environmental, and performance tests derived from EN 2591.
- Includes contact resistance, environmental aging, temperature cycling, mechanical endurance, vibration, and coating integrity.
- Production lots undergo inspection according to ISO 8056-1 to maintain manufacturing quality.
Applications
EN 3155-057 female thermocouple contacts are used extensively within the aerospace industry for:
- Integration into thermocouple sensors to measure temperature signals in aircraft systems.
- Providing precise and reliable electrical connections within harsh aerospace environments that demand high thermal stability and resistance.
- Supporting engine and environmental monitoring systems, enabling safe aircraft operations with accurate temperature data.
- Use in connector systems where crimp-style connections are preferred for secure, vibration-resistant performance.
These standardized contacts ensure interoperability across aerospace manufacturers and maintenance providers, reducing complexity and improving reliability in critical avionics equipment.
Related Standards
- EN 3155-001: Technical specifications for electrical contacts in aerospace connection elements.
- EN 3155-002: Catalog and utilization guidelines for aerospace electrical contacts.
- EN 3155-056: Male counterpart standard for thermocouple NiCr Type C crimp contacts.
- EN 4049: Thermocouple extension cable standards for operating temperatures between -65 °C and 260 °C.
- ISO 8056-1: General requirements and tests for NiCr and NiAl thermocouple extension cables.
- MIL-DTL-22520: Military specifications for crimping tools used with wire terminations.
- MIL-I-81969: Military standards for installing and removing electrical contacts in connectors.
By adhering to EN 3155-057 alongside these related standards, aerospace engineers and manufacturers can guarantee high-quality, performance-driven electrical connections specialized for thermocouple applications under demanding thermal conditions.
Keywords: EN 3155-057, aerospace electrical contacts, NiCr thermocouple contacts, crimp contacts, class T contacts, type C thermocouple, aerospace connectors, electrical contact standard, crimping tools, thermocouple extension cables, aerospace temperature sensors.
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Frequently Asked Questions
EN 3155-057:2006 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Electrical contacts used in elements of connection - Part 057: Contacts, electrical, female, thermocouple NiCr, type C, crimp, class T- Product standard". This standard covers: This standard specifies the required characteristics, tests and tooling applicable to male electrical contacts, thermocouple, NiCr, type C, crimp, class T, used in elements of connection according to EN 3155-002. It shall be used together with EN 3155-001. The associated female contacts are defined in EN 3155-057.
This standard specifies the required characteristics, tests and tooling applicable to male electrical contacts, thermocouple, NiCr, type C, crimp, class T, used in elements of connection according to EN 3155-002. It shall be used together with EN 3155-001. The associated female contacts are defined in EN 3155-057.
EN 3155-057:2006 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 3155-057:2006 has the following relationships with other standards: It is inter standard links to EN 2591-708:2001, EN 2591-407:1999, EN 2591-416:2001, EN 2591-401:1996, EN 2591-6406:2001, EN 2591-427:2001, EN 2591-6301:2001, EN 2591-508:2023, EN 2591-502:2001, EN 2591-409:1999, EN 2591-312:1997, EN 2591-208:1996, EN 2591-503:2001, EN 2591-301:1996, EN 2591-6318:2001. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3155-057:2006 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.SURL]YRGLuft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 057: Elektrische Thermobuchsenkontakte NiCr, Typ C, crimpbar, Klasse T - ProduktnormSérie aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 057 : Contacts électriques, femelles, thermocouple NiCr, type C, à sertir, classe T - Norme de produitAerospace series - Electrical contacts used in elements of connection - Part 057: Contacts, electrical, female, thermocouple NiCr, type C, crimp, class T- Product standard49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 3155-057:2006SIST EN 3155-057:2009en01-januar-2009SIST EN 3155-057:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3155-057July 2006ICS 49.060 English VersionAerospace series - Electrical contacts used in elements ofconnection - Part 057: Contacts, electrical, female,thermocouple NiCr, type C, crimp, class T- Product standardSérie aérospatiale - Contacts électriques utilisés dans lesorganes de connexion - Partie 057 : Contacts électriques,femelles, thermocouple NiCr, type C, à sertir, classe T -Norme de produitLuft- und Raumfahrt - Elektrische Kontakte zur Verwendungin Verbindungselementen - Teil 057: ElektrischeThermobuchsenkontakte NiCr, Typ C, crimpbar, Klasse T -ProduktnormThis European Standard was approved by CEN on 9 March 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 3155-057:2006: ESIST EN 3155-057:2009
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