The DORMA EM500A is an electromagnetic hold open door retainer that is suitable for use with overhead door closers and floor springs.
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The GEZE TS2000NVBC is a rack & pinion overhead door closer which is approved for use on single action doors with leaf widths of up to 1100 mm and suitable for smoke and fire doors. It comes with variable power size 2-4 and adjustable closing speed, latching action and backcheck.
The Briton 533 is a 24V DC Electromagnetic Door Holder with a 200N holding force. This product has a silver finish.
A high performance, low friction ball-bearing hinge. It is Grade 13, fire-rated and suitable for a maximum adjusted door weight of up to 120kg. This hinge measures 102mm x 76mm and has a satin stainless steel finish.
A 75mm diameter Satin Stainless Steel Automatic Fire Door Keep Clear Sign.
The Dorma EM500A electromagnetic hold open device is suitable for use with overhead door closers and floor springs. To avoid inflicting twisting forces on the door leaf it is recommended that the electromagnetic device is fitted in the same horizontal plane as the closing device (or as close as is practical). Failure to do so can result in the door leaf twisting which can prevent the door from closing properly in an emergency.
Electro-magnets for hold-open systems
The statutory regulations which apply in many countries allow fire and smoke check doors to be held open for a limited period of time by electro-magnetic hold-open devices which, in the event of a fire, are de-energized to release the door so as to enable automatic closing.
Benefits for the installer/fabricator
Benefits for the architect/specifier
Benefits for the user
• 24V DC Operating Voltage
• 400N Holding Force
• Designed & Fully Compliant to EN1155
• CE Marked