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412H.SP28 Concealed Overhead Door Holder

412H.SP28 Concealed Overhead Door Holder | Image 1
MPN: 412H.SP28
Finishes: SP28 Silver
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412H.SP28 Concealed Overhead Door Holder

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  • Product Description
  • Installation and Technical Information


Concealed Overhead Door Holder - Hold Open Version for Door Openings 585mm - 686mm (Jamb to Jamb). Silver

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Holding the door open at a pre-determined position for long or short periods. The hold open function is an automatic mechanism that ‘kicks-in’ when the door is opened to a preset angle.Tension is adjusted using an Allen key.

  • Dead-Stop Templating is recommended for applications where a wall or similar obstruction is in place at an opening angle of 110º or less (i.e., doors that open back-to-back). Dead-Stop Templating can be applied to Hold-Open, Stop-Only and Friction models. The Dead-Stop position is the point at which the shock-absorbing spring is fully compressed. Therefore, when Dead-Stop Templating is used, the initial degree of opening will be 5º to 7º less than the Dead-Stop opening. Example: If the holder is templated to a 100º dead stop, the door will hold open at an angle between 93º and 95º but no further than 100º
  • 410 series models require professional door and frame preparation. They may be used in conjunction with most surface applied door closers
  • A heavy-duty holder or stop should be considered when doors and frames are subject to heavy, frequent use. Also, heavy-duty units should be considered on exterior doors subject to wind

Concealed Mounting Surface Mounting
Size Door Opening 410 Series 450 Series 70 Series 79 Series
1 457 - 584mm 411 451 - -
2 585 - 686mm 412 452 702 792
3 687 - 838mm 413 453 703 793
4 839 - 991mm 414 454 704 794
5 992 - 1143mm 415 455 705 795
6 1144 - 1372mm - - 706 796


Best suited to standard (medium) duty situations on internal doors where door/frame protection is important.

The 410 series offers the industry’s widest variety of functions, base materials and finishes to fit all standard (medium) to light duty applications. The perfect combination of form and function. These versatile models can be used with almost all surface overhead door closers . Templates provide variable mounting positions allowing hold open and stop positions between 85° and 100°. 450 series holders and stops accommodate doors hung with conventional full mortice hinges, offset and centre hung pivot sets.

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Relcross Ltd (Relcross Door Controls)
Hambleton Avenue
SN10 2RT

t: 01380 729 600