Fusible Link

LCN 4110 Fusible Link Door Closer

Standard 4110 series closer shipped with Fusible Link arm, standard plastic cover, 4110-201 FIFTH SCREW SPACER and self reaming and tapping screws. Sized cylinders adjustable for interior doors to 5’0” and exterior doors to 4’0”. Non-sized cylinder adjustable for interior doors to 4’6” and exterior doors to 3’6”. Closer mounts parallel arm, specify right or left swinging door. 4111 cylinder meets ADA requirements.

We ship the 4111 FL

LCN 4020 Fusible Link Door Closer

Standard 4020 series closer shipped with Fusible Link arm, standard plastic cover, and self reaming and tapping screws. Sized cylinders for interior doors to 5’0” and exterior doors to 4’0”. Non-sized cylinder adjustable for interior doors to 4’6” and exterior doors to 3’6”. Closer mounts top jamb (push side), specify right or left swinging door. 4021 cylinder meets ADA requirements.

we ship the 4021 FL

LCN 4010 Fusible Link Door Closer

Standard 4010 series closer is shipped with fusible link arm, standard plastic cover, and self reaming and tapping screws. Sized cylinders for interior doors to 5’0” and exterior doors to 4’0”. Non-sized cylinder (4011) adjustable for interior doors to 4’6” and exterior doors to 3’6”. Fusible link melts at 120 degrees and allows the door to close. Closer mounts hinge side, specify right or left swinging door. 4011 cylinder meets ADA requirements.

We ship the 4011 FL

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

The LCN Fusible Link melts at 165 degrees to release the hold open mechanism.   Link measures 1-3/8 long by a 1/2" wide, the center to center distance on the holes is 15/16".

LCN Part Numbers:
4010-28
4110-30
4020-31