E-Mag Door Closer Size 3 Square

Historically, electromagnetic closers were bulky, industrial-looking units. The Size 3  Square E Mag Door Closer series has been redesigned for the modern era. By housing the high-performance hydraulic mechanism and the 24V DC solenoid within a sleek, linear casing, it allows architects to maintain a consistent design language throughout a building without sacrificing safety.

Why Size 3 is the Regulatory “Sweet Spot”

A Size 3 power rating is specifically tuned for standard internal timber doors (typically 44mm to 54mm thick).

• Weight Capacity: Perfectly balanced for leaves up to 60kg.

• Width Compatibility: Optimized for door widths up to 950mm, covering the vast majority of standard office and corridor entryways.

• User Comfort: Provides enough force to seal against smoke gaskets while remaining light enough for manual operation by elderly or younger occupants.

Advanced Functionality & Safety Integration

1. Seamless Fire Alarm Interface

The Size 3  Square E Mag Door Closer is designed to be a “silent guardian.” It connects directly to the building’s 24V DC fire alarm circuit.

• Hold-Open Efficiency: In “Hold-Open” mode, the magnet keeps the door parked at a set angle, reducing the physical barriers in high-traffic corridors and improving air circulation.

• Instant Release: The moment the alarm signal is detected (or power is cut), the magnet disengages. The pre-tensioned mechanical spring then ensures the door closes firmly into the rebate.

2. Accessibility & Equality Act Compliance

This closer is a vital tool for meeting accessibility standards (such as BS 8300). By eliminating the constant resistance of a standard spring-loaded closer, it allows wheelchair users and those with limited upper-body strength to navigate fire doors without assistance.

3. Precision Hydraulic Control

Beyond the electronics, the “Square” series features premium hydraulic valves:

• Adjustable Closing Speed: Fine-tune the “sweep” of the door to prevent it from swinging too fast.

• Independent Latch Action: Ensures the door has enough “final push” to click into the strike plate, overcoming the friction of intumescent strips.

Technical Specification Deep-Dive of Size 3  Square E Mag Door Closer

Recommended Square E-Mag Solutions

The Briton 996 Series with a square cover is the definitive choice for UK commercial projects. It is renowned for its “Swing-Free” capability, which is particularly effective in residential care settings where doors need to be left at varying angles while remaining fire-safe.

For a premium architectural aesthetic with exceptionally quiet operation, the Size 3  Square E Mag Door Closer stands out. While its internal spring is adjustable up to Size 6, it is commonly specified in its square-cover format and calibrated to Size 3 for a smooth, high-end feel in corporate boardrooms and hotel corridors.

Professional Installation Pro-Tip

To maintain the clean, “square” aesthetic, use a concealed power transfer (door loop). Size 3  Square E Mag Door Closer prevents visible wires from dangling between the door frame and the closer body. Additionally, ensure the magnet contact plate is aligned perfectly flat against the magnet face—even a 1mm misalignment can significantly reduce the “holding force,” causing the door to drop shut prematurely.

The Size 3  Square E Mag Door Closer  with a square design is built to provide smooth and reliable door closing for a variety of internal and external doors. Its precision engineering ensures that doors close gently and securely, protecting frames, hinges, and handles from unnecessary wear. The square design offers a modern and professional look, making it ideal for homes, offices, and commercial spaces.

Easy to install and maintain, this Size 3  Square E Mag Door Closer is suitable for a range of door sizes and weights, providing consistent performance and convenience. Its strong and durable construction ensures long-lasting operation, making it a dependable choice for both new installations and upgrading existing doors. With its combination of reliability, efficiency, and clean design, the Size 3  Square E Mag Door Closer is a practical and stylish addition to any door setup.