ASSA ABLOY DC840 Concealed door closer with Cam-Motion® technology and guide rail Product description Concealed door closer with Cam-Motion® technology and small standard concealed guide rail G892 or standard concealed guide rail G893 Fulfils barrier-free building requirements (EA / CEN TR 15894) Certified in compliance with EN 1154, size 1-4 Suitable for fire and smoke protection doors (additional verification of suitability maybe required for the respective fire or smoke protection door) Characteristics DC840 Can be used for DIN left and DIN right-handed doors Closing speed and latching speed adjustable from top facing regulating valves Built-in backcheck Thermodynamic valves for consistent performance Opening angle up to 120° Large range of applications Versions with 4 mm and 8 mm spindle extensions Standard colour: silver EV1 Characteristics of standard guide rail G892 Small size guide rail, can be used with hold-open device and opening damper For standard applications Installation dimensions: see diagram Characteristics of guide rail G893 Guide rail suitable for equipping with hold-open device and opening damper Installation dimensions: see diagram (dimensions in brackets) Related products ASSA ABLOY DC860 Concealed door closer with Cam-Motion® technology and guide rail