The Fusible Link arm is available with the 4010, 4020 and 4110 series closers. They all use the same Fusible Link arm. The UL Listing number is for the Fusible Link arms is R1943.
Fusible Link arms closer are NOT recommended to be used as a Fire Life Safety device in "Occupied Areas".
The local "AHJ" (Authority Having Jurisdiction) always has the final decision, therefore, "ALWAYS" consult the local "AHJ" and local codes before specifying a fusible link arm closer.
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