Fusible Link

LCN Door Closer Fusible Link Arm

Adjustable nut allows door closer arm to lock when the preselect position is reached. Fusible Link will hold door until heat melts the "Link" and then the door will shut. Used on Fire Doors to control a spreading fire.

Specify your current closers model number when ordering.
Not all of the LCN closers have the same shape spindle on the door closer
cylinder. The LCN Part #'s on this Fusible Link Arm is: 4010-3049FL, 4020-3049FL, 4110-3049FL