Eaton 1361-CSA Adjustable Keeper Plate for Electromagnetic Door Holders, 60mm Diameter, Black
The CSA 1350/1360 series is a range of wall mounted electromagnetic door retainers that offer the user a choice of holding strengths.
Robust and simple to install, they are ideal for a wide range of applications such as nursing homes, hospitals, schools and industrial premises.
Doors can be held open under normal conditions amd then automatically released in the event of a fire alarm activation.