Fire-Lite FM900-50 Door Holder Spacer, 1/2"

Keep doors reliably open when needed and securely released during alarms with the Fire-Lite Alarms by Honeywell FM900-50 Door Holder Spacer. Designed for use with electromagnetic door holders and accessories, this spacer solves alignment challenges at odd angles so doors maintain proper contact and reduce wear. The FM900-50 supports multiple voltages — 12 VDC, 24 VAC/VDC or 120 VAC — minimizing the need for separate models and making installs faster across building security and access control projects.

Delivering 25–40 lbs of holding power and magnet protection against transients up to 600V on AC units, the spacer helps protect connected surveillance and monitoring equipment from electrical surges. Fail-safe operation and a positive release button ensure doors release reliably on power loss or alarm activation, supporting life-safety and code compliance in commercial, institutional, and healthcare environments. Floor- and wall-mount compatibility provides installation flexibility for retrofits and new builds. Ideal for security-conscious facilities integrating fire alarm, access control, or monitoring systems — add the FM900-50 to your specification to simplify installs and improve door performance. Order now or contact us for application guidance.

• Provides secure, adjustable spacing for doors at odd angles to maintain reliable hold and protect egress paths
• Universal voltage compatibility (12 VDC, 24 VAC/VDC, 120 VAC) reduces inventory complexity and speeds installations
• 25–40 lb holding power for dependable door control in corridors, stairwells and high-traffic areas
• Magnet protected against transients (up to 600V on AC models) to safeguard connected security and monitoring systems
• Fail-safe operation with positive release button ensures doors close automatically on power loss for code-compliant fire safety
• Available floor- and wall-mount options simplify retrofit and new-construction installations