DS EN 3545-009:2008 Aerospace Series - Connectors, Electrical, Rectangular, With Sealed And Non-Sealed Rear, Plastic Housing, Locking Device, Operating Temperatures -55 Degrees C To 175 Degrees C - Part 009: Protective Cover For Plug And Receptacle - Product Standard Defines the characteristics of protective cover for plug and receptacle in the family of rectangular electrical connectors with sealed and non-sealed rear, plastic housing, locking device, for operati