RSG DH1224FDBR Door Holder — 12V/24V, Semi-Flush, Powder Coated Dark Bronze

RSG DH1224FDBR Door Holder — 12V/24V Dual Voltage, Semi-Flush, Powder Coated Dark Bronze

The RSG DH1224FDBR is a commercial-grade electromagnetic door holder designed for fire alarm system integration in institutional, commercial, and industrial facilities. This unit operates on 12V or 24V DC/AC, providing flexible installation compatibility across a wide range of fire alarm control panels.

Featuring a semi-flush design with a durable dark bronze powder coat finish, the DH1224FDBR is engineered to hold doors open during normal operations and release automatically when the fire alarm activates — allowing doors to close and contain the spread of smoke and fire.

Key Features

• Dual voltage operation: 12V/24V (AC or DC)
• Mount type: Semi-Flush
• Finish: Powder Coated Dark Bronze
• Electromagnetic hold-open force for reliable door retention
• Automatic release upon fire alarm signal
• UL Listed for fire door holder applications
• Compatible with all major fire alarm control panels
• Heavy-duty construction for high-traffic environments

Applications

The RSG DH1224FDBR door holder is ideal for use in hospitals, schools, office buildings, hotels, warehouses, and any facility requiring NFPA 80 and NFPA 101 compliant fire door hold-open devices. Works with corridor doors, stairwell doors, and fire-rated assemblies requiring automatic release functionality.

Compatibility

Compatible with RSG extension rods (DHE series), swivel bases (DHSB series), and back boxes (DHBB series) for customized installation requirements. Pairs with standard fire alarm control panels from Simplex, Notifier, Edwards, Siemens, Fire-Lite, Silent Knight, and others.

Ships in 5–10 business days.

Compliance & Standards

The RSG DH1224FDBR electromagnetic door holder meets the requirements of NFPA 80 (Standard for Fire Doors and Other Opening Protectives) and NFPA 101 (Life Safety Code) for automatic closing fire door hold-open devices. UL Listed under UL 228 (Door Closers — Holders, With or Without Integral Smoke Detectors). Suitable for use in commercial, institutional, and industrial occupancies requiring code-compliant fire door assemblies. Compatible with all standard 24V fire alarm control panels and NAC circuits.