SSS Push / Pull - Softline Cover. The Briton 2300 series of Cam Action Door Closers combine an innovative design with the very latest in cam technology. Briton 2300 door closers comprises of a surface mounted closer with a maximum 180° opening with AI (Adjustable Intensity) Backcheck. This range is fully adjustable to EN2-4 and is CE marked in all power sizes and applications for EN compliance. The Briton 2300 series of Cam Action Door Closers is fire tested to EN1634 standards on timber doors to achieve a 2 hour fire rating, and is covered by a 10 year warranty.. Closing speed adjustable from 120˚ opening through to the final 7˚. CE marked in all power sizes and applications for EN compliance. Fire tested to EN1634 on timber doors to achieve a 2-hour fire rating. 10 year warranty