Question :

• What is an electromagnetic door holder ?

Answer:

The electromagnetic fire door holders are designed to hold open Fire doors in any areas where easy access is essential and can be used in conjunction with any suitable fire alarm systems.
When an alarm is triggered, power to the door holder is cut, allowing the fire door fitted with it's standard closing mechanism, to shut automatically.
The Opera door holders are fitted with an integral manual release button, allowing the door to be closed without operating the fire alarm. They are also equipped with a spring loaded pin to give zero residual holding force when de-energised.

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