BRITON 1120B Size 2-4 Overhead Door Closer
Briton
The Briton 1120B is a high-quality, power-adjustable overhead door closer designed for medium to high-traffic applications, such as offices, commercial properties, and living accommodations. It offers a spring-adjustable power size of EN 2-4, making it highly versatile for various door sizes and weights.
This door closer features independent hydraulic controls for closing speed and latch action, along with a built-in adjustable backcheck. The backcheck provides a cushioning effect when the door is opened with excessive force, preventing damage to the door, frame, and adjacent walls - ideal for busy environments. For added security and to prevent tampering, the adjustment valves are concealed.
The Briton 1120B is fully certified for use on fire doors, offering up to 2 hours of fire resistance on timber doors. It is CE and UKCA marked, Certifire approved (CF388), and tested to EN 1154 and EN 1634 standards. It is non-handed and fully reversible, allowing for easy installation on both left and right-handed doors across multiple mounting configurations (Fig 1, Fig 61, and Fig 66).
Technical Specifications
- Brand: Briton
- Power Size: EN 2-4 (adjustable)
- Application: Fig 1 (pull side), Fig 61 (transom mount), and Fig 66 (parallel arm)
- Max Door Width: 1100mm
- Max Door Weight: 80kg
- Fire Tested: Up to 2 hours on timber doors (Certifire CF388)
- Standards: CE marked, UKCA marked, tested to EN 1154 & EN 1634
- Handing: Reversible (non-handed)
- Finish: Silver Enamelled
- Dimensions: 23.6cm (Length) x 38.5mm (Width) x 60mm (Height) x 60mm (Depth)
- Weight: 2.38kg
Key Features
- Adjustable Power Size: Easily adjustable between EN 2-4 to suit a wide range of door sizes.
- Adjustable Backcheck: Provides a cushioning effect when the door is opened with force, protecting the door and frame.
- Concealed Adjustments: Independent closing and latch speed regulators are concealed to prevent unauthorised tampering.
- Fire Door Approved: Certifire CF388 approved and fire-tested for up to 2 hours on timber doors.
- Universal Fitting: Reversible design suitable for both left and right-handed doors, supplied with a matching arm.
- 10-Year Guarantee: Backed by a manufacturer's 10-year mechanical guarantee for peace of mind.
Always had great service from lock and key.
Huw
very helpfull and quick friendly service
Heather Oneill
Excellent service, answered all questions, quality products.
Mike Potts
Master locksmiths with BSI accreditation
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