EN 2240-044:2010

Overview

EN 2240-044:2010 is a CEN product standard in the Aerospace series that specifies the required characteristics for incandescent lamp, code 713, intended for aerospace applications. Prepared by ASD-STAN and adopted by CEN, this standard defines the essential product requirements, designation and marking to ensure interchangeability, safety and consistent performance in aircraft electrical systems. It is intended to be used together with EN 2756 (test methods) and the general EN 2240 series technical specifications.

Key Topics

• Scope and purpose: Establishes mandatory characteristics for lamp code 713 for aerospace use and references higher-level EN 2240 parts for technical and test details.
• Electrical and photometric data: The standard lists the lamp's nominal ratings and photometric outputs as specified in the product table, including:
  • Nominal voltage: 5 V
  • Nominal current: 0.075 A
  • Nominal power: 0.375 W
  • Nominal luminous flux: 1.13 lm
  • Colour temperature: 1 930 K
• Life and endurance:
  • Static (d.c.) life: 4 000 h
  • Dynamic (d.c.) life: 2 500 h
• Mechanical and form details:
  • Form of filament: C - 2R (see EN 2240-002 for filament forms)
  • Light centre length (LCL): 2 ± 0.5 mm
  • Cap: Without
  • Mass (for 1 000 units): 0.08 kg
• Designation and marking: Example designation uses the identity block EN2240-713. Lamps and packaging shall be marked with the international code number indicated in EN 2240-002 unless space is insufficient.

Applications

This product standard is directly applicable to aircraft systems and maintenance where a compact, low-voltage incandescent indicator or instrument lamp is required. Typical practical benefits and applications include:

• Standardised replacement parts for cockpit and cabin lighting
• Consistent electrical and photometric performance for instrument illumination
• Simplified procurement and maintenance through a clear designation system (EN2240-713)
• Compliance with EN 2756 test methods ensures verifiable durability and safety in aerospace operating conditions

Related Standards

• EN 2240-001 - Technical specification for lamps, incandescent (general requirements)
• EN 2240-002 - Main characteristics and coding (filament forms, codes)
• EN 2756 - Test methods for aerospace incandescent lamps (to be used alongside EN 2240-044:2010)

For procurement, qualification and maintenance protocols, reference EN 2240-044:2010 together with EN 2240-001, EN 2240-002 and EN 2756 to ensure full compliance with European aerospace product standards.