ASSA ABLOY DC300 Door Closer Body EN 3-6 Anthracite Up to 120kg EN 1154

Product Overview

The Assa-Abloy DC300 Door Closer Body is intended for use in a wide range of internal and external doors, including fire-resistant and smoke-control assemblies, in commercial and institutional environments. Certified to EN 1154, it supports door leaves up to 120 kg and 1400 mm wide, with thermodynamic valves ensuring stable operation and compatibility with both left- and right-handed doors.

The DC300 distinguishes itself by its continuously adjustable closing force (EN 3-6) using a valve, allowing precise on-site adaptation to specific door sizes and weights up to 120 kg. This flexibility simplifies procurement and installation for facility managers and contractors dealing with variable project requirements. It is a recommendable solution for bulk commercial fit-outs and institutional renovations where standardized compliance and versatile configuration are priorities.

Key Features

• Adjustable closing force EN 3-6 ? precise setting via valve for door weights up to 120 kg and widths to 1400 mm


• EN 1154 certified ? meets European requirements for safety and performance on fire and smoke doors


• Thermodynamic valves ? automatic seasonal compensation removes need for re-adjustment in temperature swings


• Back-check function ? adjustable hydraulic resistance protects against wind or aggressive opening, activates from 75°


• Universal installation ? fits left/right, push or pull, with mounting on door or frame; compatible with mounting plate for more options


• Height-adjustable spindle ? up to 14 mm for adaptation to non-standard installations


• Separate speed and latching control ? fine-tuned adjustment over main closing and final latching (two valves)

Technical Specifications

• Closing Force: EN 3-6 (valve adjustable)


• Maximum Door Weight: 120 kg


• Maximum Door Width: 1400 mm


• Certification: EN 1154


• Closing Speed Control: 180°-0° range (valve 1), 15°-0° range (valve 2)


• Back-Check Activation Angle: From 75°


• Maximum Opening Angle: 180° (to EN 5 = 125°)


• Spindle Height Adjustment: 0?14 mm


• Compatible Door Types: Left/right, fire-rated, smoke-control

Applications

Suitable for installation on single- or double-leaf fire-rated and smoke-control doors in commercial buildings, schools, hospitals, and administrative facilities. Meets project requirements where EN 1154 compliance and variable door geometry must be addressed. Well adapted to bulk procurement, new construction, and refurbishment of high-traffic institutional sites.

Packaging & Shipping

Standard export packaging. Unit includes the DC300 door closer body and installation accessories; arm must be ordered separately.