SIST EN 3545-009:2008

SIST EN 3545-009:2008 Overview

SIST EN 3545-009:2008 is a European standard developed by CEN specifying the protective covers for plugs and receptacles within the aerospace series of rectangular electrical connectors. These connectors feature sealed and non-sealed rear options, plastic housings, locking devices, and are designed to operate effectively across a wide temperature range from −55 °C to 175 °C. The standard applies specifically to protective covers that shield plugs and receptacles but do not guarantee sealing under immersion conditions.

This standard forms part of the comprehensive EN 3545 series, which covers various technical and performance specifications related to aerospace electrical connectors, ensuring interoperability, quality, and safety in demanding aerospace environments.

Key Topics

• Scope and Application
  Defines characteristics and requirements for protective covers used with rectangular electrical connectors having sealed or non-sealed rear configurations.
• Operating Temperature Range
  Guaranteed functionality between −55 °C and 175 °C, suitable for harsh aerospace conditions.
• Design and Dimensions
  Detailed dimensions and maximum mass limits are specified to ensure uniformity, including separate attachment systems for plugs (female) and receptacles (male), facilitating secure fitting.
• Material and Construction
  Protective covers are manufactured from plastic housing materials designed for durability and compatibility with aerospace-grade connectors.
• Attachment Systems
  Covers include either a female or male attachment interface compliant with related EN 3545 parts (EN 3545-005 and EN 3545-006), but without the coding device to allow flexible use.
• Marking and Identification
  Products must be clearly marked with manufacturer details, part numbers, and production dates for traceability and quality assurance.
• Limitations
  Covers protect against contamination and mechanical damage but do not provide immersion-level sealing, important for users to consider in wet or underwater environments.

Practical Applications

SIST EN 3545-009:2008 protective covers are essential components in aerospace electrical systems where connector integrity and protection against dust, debris, and physical impact are critical. Their applications include:

• Aerospace Electrical Systems
  Protection of plug and receptacle connectors on aircraft wiring harnesses, avionics, and control systems during transportation, maintenance, or when connectors are not mated.
• Maintenance and Servicing
  Use of standardized protective covers increases reliability and reduces damage risk during inspection and servicing of aerospace electrical equipment.
• Environmental Protection
  While not designed for immersion, these covers prevent ingress of particulates and contaminants in challenging aviation environments, extending connector lifespan.
• Industrial Aerospace
  Applicable in aerospace manufacturing and assembly processes where standardized protective covers ensure consistent connector protection.

Related Standards

SIST EN 3545-009:2008 complements and references several other parts of the EN 3545 series that together provide a complete technical framework for aerospace rectangular electrical connectors:

• EN 3545-001 – Technical specification for rectangular electrical connectors in aerospace applications.
• EN 3545-002 – Performance specifications and contact arrangements for these connectors.
• EN 3545-005 – Female coding and attachment systems for plugs (free housing).
• EN 3545-006 – Male coding and attachment systems for receptacles (fixed housing).

For full compliance and optimal system design, aerospace engineers and manufacturers should consider integrating EN 3545-009 alongside these related EN 3545 parts to ensure connector protection and performance meets stringent aerospace industry requirements.

Keywords: SIST EN 3545-009:2008, aerospace electrical connectors, rectangular connectors, protective cover, plug and receptacle, plastic housing, locking device, operating temperature, connector protection, aerospace standards, CEN standard, aerospace electrical equipment.