PSS. This adjustable, fire tested and CE marked overhead door closer from Asec is available in a variety of attractive finishes, and is suited for maximum door widths/weights of 950mm/60Kg. It has a fixed strength of size 3, however it is power adjustable by position, and suits universal application (Fig 1, 66 & 61).. Adjustable Sweep Speed & Latch Speed. CE marked against EN1154 in fig 1 applications. Included in successful fire test to EN1634. Power Adjustable by Position