In many buildings, there are thoroughfares fitted with fire doors that are vital to the safe operation of the premises, but cause inconvenience to the passage of people or goods. Magnetic door retainers (MDRs) provide a simple answer by keeping the doors open until a fire alarm (or other signal) causes the doors to close. Many options of holding forces and mounting configurations are available with Eaton's range to suit all types of doors found in commercial, educational, and health care premises.
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