Variants of the HDA 280: HDA 280 HDA 280_N Applied directives and standards: The device: HDA 280 complies with the following: Pos.No. Document Short description 780 RL 2011/65/EU 781 EN 50581 document: EC_DoC_HDA 280 form: QM_08-61 – issued 2012_05_14 RoHS Directive 2011/65/EU Restriction of the use of certain hazardous substance Technical documentation for the assessment of electrical and electronic products with respect to the restriction of hazardous substances ident no.