SIST EN 4165-009:2009

Overview

SIST EN 4165-009:2009 is a European standard that specifies the requirements for rack and panel plugs for 2 and 4 modules, series 3, as part of the aerospace series of rectangular, modular electrical connectors. Designed for continuous operation at temperatures up to 175 °C, this standard ensures high reliability and durability of connectors used in demanding aerospace environments. The corresponding receptacles for these plugs are outlined in EN 4165-002.

This standard, developed by the Aerospace and Defence Industries Association of Europe (ASD-STAN) and approved by CEN, harmonizes national standards across European countries, facilitating consistent quality and interchangeability in aerospace electrical connector technology.

Key Topics

• Modular Rectangular Connectors: Defines rack and panel plugs specifically for configurations of 2 and 4 modules in series 3, supporting modular system designs.
• Operating Temperature: Rated for continuous use at a high operating temperature of 175 °C, suitable for aerospace applications requiring thermal endurance.
• Connector Classes:
  • Class W: Aluminium alloy housing, olive drab cadmium plated, conductive finish with 500 hours salt mist resistance.
  • Class F: Aluminium alloy housing, black nickel plated, with 96 hours salt mist resistance.
  • Class A: Aluminium alloy housing, black anodised plated, non-conductive finish with 48 hours salt mist resistance.
• Designation and Coding: Describes the standardized method for component identification, including series, module number, shell type, and keying configuration in compliance with related EN 4165 standards.
• Marking Requirements: Follows EN 2424 for aerospace product marking to ensure traceability and compliance.
• Technical Specifications: References EN 4165-001 for overarching technical conditions governing temperature, material performance, and contact arrangements.

Applications

SIST EN 4165-009:2009 connectors are integral to aerospace electrical systems requiring:

• High-Temperature Resistance: Components operate reliably in environments exposed to continuous temperatures of up to 175 °C.
• Modular System Integration: Supports flexible configurations for avionics racks, control panels, and electronic equipment.
• Corrosion Resistance: Ensures longevity in harsh saline or marine-like environmental conditions frequently encountered in aerospace operations.
• Interchangeability and Standardization: Enables aerospace manufacturers and maintenance teams to adopt uniform connectors across different platforms and suppliers, reducing complexity and improving maintainability.

These connectors are commonly used in:

• Commercial and military aircraft electrical racks
• Spacecraft and satellite electronic assemblies
• Aerospace ground support equipment
• Defense avionics systems requiring stringent operational reliability

Related Standards

• EN 4165-001: Technical specification for rectangular modular electrical connectors operating at 175 °C.
• EN 4165-002: Defines the specification of performance and contact arrangements for receptacles compatible with the plugs in EN 4165-009.
• EN 4165-021: Product standard specifying coupling system keyways for plugs to prevent incorrect mating.
• EN 2424: Aerospace product marking standard guiding traceability and labeling practices.

SIST EN 4165-009:2009 aligns with these complementary standards to provide a comprehensive framework for aerospace connector design, ensuring consistency, performance, and safety in electrical interconnections under high-temperature conditions.

Keywords: EN 4165-009, aerospace connectors, rectangular modular electrical connectors, rack and panel plug, series 3, 175 °C operating temperature, aerospace standards, high-temperature connectors, modular connectors, electrical connector corrosion resistance, aerospace connector marking.