The DH Series Electromagnetic Fire Door Holders are constructed of the finest materials and workmanship available. Each door holder is made of durable die-cast metal and offered in a powdercoated finish.
Features
Extremely low current draw. Only 20mA at 24V saves on power supplies and backup batteries
New recessed mount for lowest profile look
Dual voltage inputs in each units reduces stocking requirements
Self-adjusting swivel catch-plate reduces installation time and adjusts to door alignment changes
Optional extension rods make installation faster
Low residual magnetism easily releases even on new ADA low pressure door closers