• Model NO.：S4A-39B
• Structure of Electromagnetic Door Stop：No
• Working Principle：Wall-Mounted
• Control：Manual
• Usage：Normal Door, Fire Door, Glass Door
• Customized：Customized
• S4a Model No.：S4a-39b
• Surface Treatment：Baking Varnish
• Suction：60kg
• Working Voltage：12VDC,24VDC
• Working Current：170mA,85mA
• Design Feature：Low Power Consumption Design
• Release Button：with Test Button
• Transport Package：Standard Carton Box
• Specification：70x95x100mm
• Trademark：S4A
• Origin：China
• HS Code：7020009990
• Production Capacity：200000,Mouth

Basic Info.

Model NO. S4A-39B Structure of Electromagnetic Door Stop No Working Principle Wall-Mounted Control Manual Usage Normal Door, Fire Door, Glass Door Customized Customized S4a Model No. S4a-39b Surface Treatment Baking Varnish Suction 60kg Working Voltage 12VDC/24VDC Working Current 170mA/85mA Design Feature Low Power Consumption Design Release Button with Test Button Transport Package Standard Carton Box Specification 70x95x100mm Trademark S4A Origin China HS Code 7020009990 Production Capacity 200000/Mouth

Product Description

Electric Magnet Fire Door holder

What is electromagnetic door stopper?

Electromagnetic door holders and releasers keep doors open until they are released by fire-alarm systems, 

remote smoke detectors, or other switching devices. They provide a high holding force. In the event of a power 

failure, they release the door to a closed position to keep the facility secure.

 

How do you remove a magnetic door stopper?

Removing the Old Magnetic Door Stop

Use a screwdriver to loosen the screws until they come off. Remove the entire catch assembly and put them aside. 

Next, work on the magnetic door stop installed on the wall trim. Remove the screws, pull off the device, and set it aside.

 

 

S4A Model No.	S4A-39B
Material	aluminum alloy
Surface treatment	baking varnish
Suction	60kg
Working voltage	12VDC/24VDC
Working current	170mA/85mA
Design feature	low power consumption design
Release button	with test button