509F49 Parallel Arm Hold Open Bracket - DC3000, DC6000

The Corbin Russwin 509F49 is a parallel arm hold open bracket for the DC3000 and DC6000 series door closers. It converts a regular arm hold open closer configuration to a parallel arm hold open installation, allowing the hold open function to be preserved when the mounting geometry of the opening requires parallel arm placement rather than regular arm or top jamb. Four painted finishes are available: 690 dark bronze, 691 light bronze, 696 satin brass, and 693 black.

What this bracket does and why it's ordered separately

The Corbin Russwin DC3000 and DC6000 series closers are available in multiple arm configurations. The standard parallel arm bracket for these closers is the 188F41, which provides parallel arm mounting without hold open function. When an installation requires the door to be held open at a fixed angle in a parallel arm mounting arrangement, the 188F41 standard bracket does not provide that capability. The 509F49 is the hold open variant of the parallel arm bracket specifically designed to add that function.

This bracket is ordered when the closer body is already installed or on order and the installation requires parallel arm hold open function that wasn't included in the original arm assembly. It's also ordered as a replacement when the existing hold open bracket is damaged or when an installation is being converted from regular arm hold open to parallel arm hold open without replacing the full closer unit. The bracket attaches to the closer spindle and the door or frame surface in the standard parallel arm configuration, with the hold open mechanism integrated into the bracket rather than requiring a separate hold open device.

DC3000 vs DC6000 compatibility

The 509F49 is listed as compatible with both the DC3000 and DC6000 series. The DC3000 is Corbin Russwin's standard duty closer and the DC6000 is the heavy duty model. Both share the same spindle geometry and arm attachment dimensions that the 509F49 bracket is designed for. If the installed closer is the DC8210 extra heavy duty model, confirm compatibility before ordering as that series uses different arm hardware than the DC3000 and DC6000.

Parallel arm mounting positions the closer body on the push face of the door and runs the arm parallel to the door back toward the hinge side. This configuration keeps the arm profile lower and closer to the door face than a regular arm installation, which is appropriate when the door swings into a narrow corridor or when clearance between the arm and an adjacent wall or partition is limited. The hold open function on the 509F49 engages at the selected open position and holds the door until it is manually pushed closed, at which point the closer takes over and completes the closing cycle.

Hold open function on fire-rated doors and installation considerations

Hold open arms are not permitted on fire-rated door assemblies. Fire-rated doors must return to the closed position after each use, and a mechanical hold open arm that keeps the door open indefinitely is incompatible with that requirement. The 509F49 should only be specified on non-fire-rated doors where the hold open function is acceptable under the applicable building code and occupancy type. Confirm the door's fire-rating status before ordering. For fire-rated openings that need doors to be held open during normal operations, an electromagnetic hold open device tied into the building's fire alarm system is the correct approach, as those devices release and allow the door to close on alarm activation.

For the complete range of Corbin Russwin DC3000 and DC6000 series closer parts and accessories, browse the door closer parts catalog. The full Corbin Russwin door closers section covers complete DC3000, DC6000, and DC8210 closer units. For the broader range of standard door closers and accessories across all manufacturers available on this site, that section is available for comparison.

Select your finish when ordering. Confirm the installed closer is the DC3000 or DC6000 series and verify the door is not fire-rated before specifying the 509F49 hold open bracket.