The DORMA EM500A is an electromagnetic hold open door retainer that is suitable for use with overhead door closers and floor springs.Read more
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
- Quick and easy to fix.
- Sophisticated accessories suitable for a wide range of applications.
Benefits for the architect/specifier
- Uniform appearance common to all models.
- Modular system for application flexibility.
Benefits for the user
- Concealed cable run.
- Optimum holding force with minimum power consumption.
• 24V DC Operating Voltage
• 400N Holding Force
• Designed & Fully Compliant to EN1155
• CE Marked
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 EN 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 and is flush mountable. Backing Box available separately for surface mounting.
The ARRONE AR8187 is 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 Automatic Fire Door Keep Clear Sign in a choice of four finishes.