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Door Retainers

Door Retaining Magnets are a key part of a fire system, where the requirement for doors to close automatically upon a fire alarm being triggered. Otherwise known as Door Hold Open Magnets or Magnetic Door Holders. Door Retainers come in two main categories, either floor mounted or wall mounted. This particular model comes with a reset button, which means that the doors can be closed manually. The fire door magnet is powered by a transformer rectifier power supply, and are installed in buildings, between fire escape doors. When the fire prevention system detects a fire alarm, the armature plate is released allowing the door to close.

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DR0351 24vDC Door Retaining Magnet, Door Hold Open Magnet

DR0351 24vDC Door Retaining Magnet, Door Hold Open Magnet

£34.50

DR0351 24vDC Door Retaining Magnet, Door Hold Open Magnet offer's true fail safe operation and therefore is met with both security and fire safety requirements. Product Features Input: 24v DC Holding Force: Upto 50lbs / 20kg Current Draw: …

DR0352  240AC Fire Door Retainer, Door Hold Open Magnet.

DR0352  240AC Fire Door Retainer, Door Hold Open Magnet.

£37.40

DR0352  240AC Fire Door Retainer, Door Hold Open Magnet offer's true fail safe operation and therefore is met with both security and fire safety requirements. Product Features Input: 240v AC Holding Force: Upto 50lbs / 20kg Current Draw: 1…

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