SIST EN 2349-413:2009

Overview

EN 2349-413:2007 is a CEN European Standard (Aerospace series) that defines a method to verify the capability of relays and contactors to withstand mechanical vibration. Focused on both sinusoidal and random vibration environments, the standard is Part 413 of the EN 2349 series and is intended to be used together with EN 2349-100 (General requirements). It was prepared by ASD‑STAN and approved in 2006/2007 and references test procedures in ISO 7137.

Key topics and technical requirements

• Scope: Method for checking relays and contactors against sinusoidal and random vibrations.
• Mounting: The device under test must be mounted rigidly on the vibration table so vibration is transmitted without absorption or resonance; electrical connections wired per the product standard and secured close to the connection point.
• Test procedures:
  • Sinusoidal vibration testing in accordance with ISO 7137.
  • Random vibration testing in accordance with ISO 7137.
  • Test conditions (levels, duration, axes) are set by the specific product standard.
• Pass/fail criteria and requirements:
  • Torque on connections and attachments must be at least 80% of the rated value after testing.
  • Contact performance limits: no opening of closed contacts longer than 10 µs and no closing of open contacts longer than 1 µs (timing thresholds).
  • Post-vibration verification tests include tests defined in EN 2349 parts: 301, 303, 304, 305, 307, 309, and 412 (pick-up/drop-out, dielectric strength, operate/release time, bounce time, contact voltage drop, exported spikes, and seal).
• Standards relationships: ISO 7137 is referenced; the document notes endorsement of publications such as EUROCAE/ED‑14 and RTCA/DO‑160 as related environmental test guidance.

Applications

• Qualification and environmental verification of aerospace relays and contactors used in aircraft and airborne systems.
• Ensures electrical switching components meet vibration survivability requirements during design validation, production testing, and qualification for flight hardware.
• Useful for suppliers, test laboratories, and OEMs validating component robustness against flight and ground vibration spectra.

Who should use this standard

• Aerospace component manufacturers and suppliers of relays and contactors
• Design and test engineers responsible for environmental qualification
• Laboratory personnel performing vibration tests
• Certification and quality teams preparing compliance evidence for airworthiness

Related standards

• EN 2349-100 (General requirements)
• EN 2349-301, -303, -304, -305, -307, -309, -412 (product-specific tests)
• ISO 7137 (Aircraft - Environmental conditions and test procedures for airborne equipment)
• EUROCAE/ED‑14, RTCA/DO‑160 (related environmental guidance)

Keywords: EN 2349-413, aerospace relays, contactors, vibration testing, sinusoidal vibration, random vibration, ISO 7137, environmental qualification.