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S4AItem NO.:
S4A-40S4A-40 Emergency Door Holder
The S4A-40 is an emergency door holder engineered for automatic release and secure holding of fire and emergency exit doors. Operating on a dual 12V/24V power supply, it features a durable magnetic assembly (61×50 mm) and armature plate (61×52 mm) to deliver reliable door retention and instant release when integrated with fire alarm or access control systems.
Parameter
Specification
Model Number
S4A-40
Product Name
Emergency Door Holder
Operating Voltage
12V / 24V DC
Magnetic Parts Size
61 × 50 mm
Armature Plate Parts Size
61 × 52 mm
Application
Fire Doors, Emergency Exits, Access Control Systems