NHN® 500 Series
Transom Overhead Concealed Door Closer
The NHN500 is a commercial grade transom overhead concealed door closer designed to be mounted inside the header frame/jamb so that keeps the aesthetic door appearance, ideal for the commercial entrance where surface-mount type closers are not suitable or would interfere architectural design.Catalog – Transom Overhead Concealed Door Closer NHN500
|Spring size (EN)||Door width||Door weight||Opening angle||Hold open or Non hold||Model Number|
|Hold at 90°||552H90|
|Hold at 105°||552H15|
|Hold at 90°||553H90|
|Hold at 105°||553H15|
|Hold at 90°||554H90|
|Hold at 105°||554H15|
Two section speed adjustment (130°~10° & 10°~0°).
Works for both single and double acting doors.
Fits into common header frames.