Dorma Fire 447 RR Electric Strike EN 14846 12V DC Monitoring Contact 100% ED Fire Rated

Product Overview

The Dorma Fire 447 RR is an electric strike designed for fire-rated and smoke-control doors, suitable for use in commercial, institutional, and industrial buildings where secure and code-compliant access is required. It features a symmetrical housing for universal installation regardless of door handing and is compatible with both rebated and non-rebated doors, subject to valid type approval documentation. The device is certified to EN 14846, confirming its suitability for high-stakes safety applications such as emergency exit routes and fire partitions.

A standout feature of the RR version is its built-in monitoring contact, which allows remote status supervision of the strike within access control or alarm systems. This minimizes maintenance cycle risks and enables immediate detection of access point failures during safety audits or critical events. Well-suited for B2B buyers overseeing large-scale installations or compliance-driven retrofit projects, particularly in environments where ongoing access monitoring is mandatory.

Key Features

• Fire-rated compliance ? meets EN 14846 for use with fire and smoke control doors


• Symmetrical design ? enables installation on left or right-handed doors, and on non-rebated models


• Monitoring contact (RR version) ? provides status signaling for integration with building management systems


• Overload protection ? internal circuit prevents damage from current surges and extended activation


• Operating voltage 12 V DC ? compatible with standard access control power supplies and intercom systems


• Continuous duty operation (100% ED) ? suitable for applications requiring extended or permanent activation


• Current consumption 0.22 A at 12 V DC ? supports energy-efficient building requirements

Technical Specifications

• Operating Voltage: 12 V DC


• Current Consumption: 0.22 A


• Duty Cycle: 100% ED (continuous operation)


• Resistance: 51.00 Ohm


• Version: RR (monitoring contact)


• Certification: EN 14846


• Design: Symmetrical

Applications

Specified for fire-rated and smoke-control doors in commercial buildings, offices, hospitals, hotels, and industrial facilities. Compatible with intercom systems, access control, and alarm panels. The strikes are particularly appropriate for retrofitting fire partitions, compliance-driven building upgrades, and new construction projects where certified fire safety and access monitoring are required.

Packaging & Shipping

Standard export packaging. Each unit includes the electric strike, monitoring contact wiring, mounting hardware, and installation instructions.