Size 3-6 Double Rebated Door Selector – Complete With 102mm Arm, Standard Rebate Catch

In the professional security and fire safety industry, a double rebated Door Selector is a critical piece of hardware for double-leaf doors. When doors have overlapping “rebated” edges, they must close in a specific order: the inactive leaf first, followed by the active leaf. If the active leaf closes first, its extended latch prevents the inactive leaf from closing, leaving a dangerous gap. The selector prevents this by holding the active leaf open until the inactive leaf has safely latched into place.

As part of a fire safety system, these double rebated Door Selector are typically BS EN 1158 tested and are suitable for use on FD30 and FD60 fire doors. Whether finished in Satin Stainless Steel (SSS), Silver Anodised, or Polished Brass, the double rebated door selector provides a reliable, mechanical solution that operates without power, ensuring fail-safe performance during an emergency.

Why the MK2 Door Selector is the Professional Choice

• Sequential Closing Precision: Guarantees that the inactive leaf closes before the active leaf, maintaining the integrity of fire and smoke seals.

   

• Fire-Rated Durability: Successfully tested for up to 120-minute timber and 240-minute steel fire door sets, meeting essential building regulations.

   

• Heavy-Duty Capacity: Engineered to handle heavy commercial doors weighing up to 120kg and leaf widths up to 1000mm.

   

• Extended Arm Options: Available with 152mm or 202mm extended arms to accommodate thicker doors, wide reveals, or doors with specialized astragals.

   

• Universal Compatibility: Suitable for use with Power Size 3–6 door closers, providing enough strength to control high-tension springs.

• Discreet Aesthetic: A sleek, surface-mounted design that integrates seamlessly with modern and heritage architectural hardware.

   

Technical Specifications of Double Rebated Door Selector

Professional Installation and Maintenance Tips

Correct installation is vital for a door selector to function as a life-safety device:

1. Mounting Position: The coordinator body is fixed to the underside (soffit) of the door frame head. Ensure it is perfectly level so the “gravity arm” or toggle operates without friction.

    

2. Toggle Alignment: The trigger mechanism (toggle) must be positioned exactly where the first closing door (inactive leaf) can strike it. Use the provided impact plates to protect the timber surface.

    

3. Check the “Hold”: Open both doors and release them. The selector should physically block the active door from closing. If it fails to hold, adjust the vertical positioning screw or spring tension.

4. Closing Speed Calibration: Ensure your door closers are adjusted to a speed of 5 to 7 seconds. Closing speeds that are too fast can cause excessive wear on the selector mechanism.

5. Monthly Safety Checks: As part of your fire risk assessment, verify that all screws are tight and the arm moves freely. A drop of light machine oil on the pivot points once a year is recommended.

    

A Vital Component for Passive Fire Protection

The Double Rebated Door Selector is the definitive choice for architects, facility managers, and safety officers. It bridges the gap between simple convenience and mandatory life-safety compliance. By selecting a precision-engineered MK2-style selector, you are investing in a hardware component that ensures your building remains secure and your occupants remain protected.

This Size 3–6 Double Rebated Door Selector is a reliable and practical solution for ensuring rebated double doors close in the correct sequence. Designed for use on fire-rated and non-fire-rated doors, it guarantees that the inactive leaf closes first, followed by the active leaf, creating a secure and proper fit. This function prevents damage to hinges, locks, and frames while maintaining compliance with safety and accessibility standards.

Supplied as a complete unit, the Double Rebated Door Selector comes with a 102mm arm and a standard rebate catch, making it suitable for most common double rebated door setups. Its sturdy construction ensures durability and smooth operation, even in high-traffic areas such as offices, schools, hospitals, and commercial spaces.

Easy to install, this Double Rebated Door Selector is engineered for dependable performance and long-lasting service life. By controlling the door sequence, it provides a professional and secure finish, helping to extend the life of your door hardware. Whether you are upgrading existing doors or fitting new installations, this Size 3–6 Double Rebated Door Selector offers a straightforward and effective solution for maintaining safety and functionality.