SIST EN 4165-004:2009

Overview

SIST EN 4165-004:2009 is a European standard developed by CEN that specifies the requirements for stackable mounting receptacles in the aerospace sector. It covers electrical rectangular modular connectors, specifically series 2, designed for continuous operation at high temperatures up to 175°C. The standard applies to 2-module and 4-module receptacles used in aerospace electrical systems, ensuring reliable and high-performance connections critical for aerospace applications.

This standard complements other parts of the EN 4165 series, with corresponding plugs defined in EN 4165-002 and protective covers described in EN 4165-018. It is essential for manufacturers and engineers involved in aerospace connector design, ensuring compatibility, durability, and safety under rigorous environmental conditions.

Key Topics

• Stackable Mounting Receptacles: Defines series 2 stackable mounting rectangular electrical connectors available in 2 and 4 module configurations for modular assembly.
• Operating Temperature: Rated for continuous use up to 175°C, suitable for aerospace environments where high temperature resistance is mandatory.
• Receptacle Classes:
  • Class W: Aluminium alloy, olive drab cadmium plated with conductive finish, 500 hours salt mist resistance.
  • Class F: Aluminium alloy, black nickel plated with conductive finish, 96 hours salt mist resistance.
  • Class J: Composite material, olive drab cadmium plated with conductive finish, 500 hours salt mist resistance.
  • Class M: Composite material, nickel plated with conductive finish, 500 hours salt mist resistance.
  • Class A: Aluminium alloy, black anodized plated with non-conductive finish, 48 hours salt mist resistance.
• Modular Compatibility: Receptacles are compatible with modular plugs defined under EN 4165-002, enhancing system integration in aerospace electrical circuits.
• Marking and Identification: Marking follows EN 2424 guidelines, ensuring traceability and compliance with aerospace product marking standards.
• Technical Specifications: Includes mechanical dimensions, material specifications, and performance characteristics necessary for robust aerospace-grade connectors.

Applications

EN 4165-004 receptacles are widely used in aerospace electrical equipment where modular, stackable connectors are required. Typical applications include:

• Aircraft Electrical Systems: Providing high-temperature resistant connections in avionics and flight control cabling.
• Spacecraft Connectors: Suitable for electrical systems in spacecraft where reliability under extreme temperature conditions is crucial.
• Defense Equipment: Utilized in military aerospace platforms requiring rugged, corrosion-resistant connectors.
• Modular Electrical Interfaces: Allowing flexible assembly and maintenance of electrical circuits through stackable modular designs.

The high continuous operating temperature rating of 175°C ensures connectors maintain integrity in harsh aerospace environments such as engine compartments and external airframes.

Related Standards

• EN 4165-001: Technical specifications for aerospace series rectangular modular connectors operating at 175°C.
• EN 4165-002: Specifications for corresponding modular plugs compatible with stackable receptacles.
• EN 4165-003: Product standards for modules used in series 2 and series 3 connectors.
• EN 4165-018: Standards for protective covers designed for 2 and 4 module series 2 and series 3 receptacles.
• EN 4165-020: Specifies coupling system keyway design for receptacles to ensure connector compatibility and safety.
• EN 2424: Aerospace product marking standard, ensuring traceability and identification.

Keywords: Aerospace electrical connectors, modular connectors, stackable mounting receptacle, high temperature connectors, EN 4165 series, rectangular connector standard, aerospace connector standard, continuous 175°C operation, aerospace modular connectors, aerospace connector requirements.