ASSA ABLOY DC300 Rack and pinion door closer with link arm Product description Certified in compliance with EN 1154, size 3-6 Rack and pinion closer with link arm L190 Suitable for fire and smoke protection doors For single action doors up to 1400 mm wide Overview of Advantages Can be used with concealed mounting plate, suitable for fire and smoke protection doors Can be used for left and right-handed doors Axis height adjustable up to 14 mm Closing speed, latching speed and backcheck adjustable via front facing regulating valves Thermodynamic valves for consistent performance Variable adjustable closing force Opening angle up to 180° Effective backcheck and latching speed range adjustable Accessories for established installation types Large range of applications Standard colours: silver EV1; white, similar to RAL9016; brown, similar to RAL8014; black, similar to RAL9005 Customised finishes available on request Characteristics for hold open link arm L191 Hold-open angle adjustable up to 150° Hold-open mode can be enabled and disabled as required Same installation as link arm Cannot be used with fire and smoke protection doors Characteristics of special model DC300DA Delayed closing variable from max. opening angle - 70°, adjustable from front Other features as in Model DC300 view construction details The advantages at a glance Customer segmentAdvantages Project planners Extensive range of uses: Fire and smoke protection doors as well as standard doors Modern design Compact design Fulfils barrier-free building requirements Same dimensions and design with and without mounting plate Comprehensive functions, standard and optional Builders One drilling template overall Adjustable to nearly all door and frame types Quick and easy installation Quickly and easily adjustable Suitable for left and right handed doors, in both door and frame mounted applications Trade Reduced inventory costs due to modular product range One single product suitable for a large variety of mounting positions Complementary accessories available for the whole product range User Largely unaffected by temperature fluctuations because of thermodynamic valves Easier door opening and improved accessibility due to reapidly decreasing torque Backcheck feature offers optimum protection for doors and walls Close Technical data Closing force EN 3-6 Door width up to 1400 mm Suitable for fire doors Yes DIN direction Left / right handed Closing speed Variable between 180°-15° Latching speed Variable between 15°-0° Backcheck effect Variable above 75° Delayed closing No Hold-open mode (with hold-open link arm L191) Adjustable 75°-150°, can be enabled and disabled CE marking for building products Yes Certified in compliance with EN 1154 Length 260 mm Height 60 mm Depth 50 mm Weight 1.9 kg Close DC300 TandemRack and pinion closer with link arm L190 DC200Rack and pinion door closer with link arm DC140Rack and pinion door closer with link arm