ABH 3780 Universal Soffit-Mounted Door Coordinator

The ABH 3780 is a heavy-duty, stop-mounted coordinator designed to ensure the proper closing sequence for pairs of doors, especially those featuring an astragal. This universal device uses a precision-engineered long arm to hold the active door open until the inactive door closes and depresses the short arm, releasing the active door. By guaranteeing that doors close in the correct order, the ABH 3780 maintains the integrity of fire-rated openings and security seals.

Key Features & Benefits

• Universal Compatibility: Designed for pairs of doors up to 8' wide, providing a versatile solution for a wide range of commercial entryways.
• Streamlined Installation: This is a stop-mounted (soffit-mounted) device, meaning additional mounting brackets are not required when using standard hardware, saving both time and costs.
• Life-Safety Certified: UL Listed for use with swinging fire doors (including those with astragals) for up to 3 hours, ensuring your facility remains fully compliant with fire codes.
• Heavy-Duty Performance: Meets or exceeds ANSI 156.3, Type 21 requirements (when used with a carry bar), making it suitable for high-traffic environments.
• Patented Reliability: Features a US-patented design (No. 6,250,014) engineered for thousands of smooth, consistent cycles.

​

Why Choose the ABH 3780 for Your Project?

The ABH 3780 is an essential component for any double-door system where one door must overlap the other. Its low-profile design sits within the soffit of the frame, providing a much cleaner look than traditional bar-style coordinators. For high-end architectural projects, custom finishes are available upon request to match your existing door hardware.

Pro-Tip: If the inactive door can be opened before the active door, be sure to pair this with an ABH Carry Bar to ensure the coordinator works correctly.