Durable Surface-Mount Backbox for Secure Fire System Installations
The 55-052 is a single-gang surface backbox designed to securely mount fire alarm manual pull stations and other compatible low-voltage electrical devices. Manufactured with rugged materials and precise dimensions, it ensures proper alignment, tamper resistance, and long-lasting performance in both new installations and retrofit projects.
Optimized for Fire Alarm Systems
This backbox is specifically designed for use with Edwards / EST fire alarm pull stations and notification devices. As a result, it provides a snug, secure fit and helps maintain compliance with NFPA and UL mounting requirements. Additionally, its design ensures that conduit entries align with standard electrical fittings, simplifying wiring and device placement.
Durable Construction for Indoor Use
Constructed from durable die-cast aluminum, the 55-052 offers excellent impact resistance and longevity. Furthermore, it features a red powder-coated finish that matches the aesthetic of most fire alarm devices and provides high visibility in emergency environments.
Easy Installation with Multiple Knockouts
The 55-052 includes multiple conduit knockouts on the sides and rear, offering versatile wiring options for installers. Therefore, it supports a wide range of system layouts, whether mounted on concrete, drywall, or masonry. In addition, pre-drilled mounting holes speed up installation and help maintain code-compliant device height.
Ideal for Commercial and Industrial Use
This surface backbox is suitable for schools, commercial buildings, healthcare facilities, and other applications where flush-mounting is not feasible. Moreover, it supports a professional appearance while offering secure protection for internal wiring and terminals.
Download the Specification sheet in *.pdf format



