Hubbell Wiring Device-Kellems manufactures floor boxes designed for both commercial and residential applications. The CFB2G25R model is a 2-gang recessed shallow floor box intended for use with round covers. Installation requires adherence to national and local electrical codes and is recommended to be performed by a qualified electrician. The documentation details procedures for installation before and after a concrete pour, as well as specific steps for assembly and wiring. This article provides a comprehensive overview of the installation process and key features of the Hubbell CFB2G25R floor box, based on available documentation.
Product Overview
Hubbell floor boxes offer discreet access to power and data connections. The CFB2G25R is specifically designed as a recessed, shallow floor box accommodating two gangs. It is compatible with CFBS1R6CVRxx series round covers and CFBS1R6FFCVRxx series round furniture feed covers. The product aims to provide a blend of functionality and aesthetic integration into various floor types. The documentation emphasizes the importance of durability and ease of installation.
Pre-Concrete Pour Installation
Prior to pouring concrete, specific steps must be followed to ensure proper installation of the CFB2G25R floor box. These steps, as outlined in the provided documentation, include:
- Remove the four #8-32 pan head screws [1] from the top corners of the floor box assembly and retain them for later use.
- Remove the transition [2] and mounting plate [3] assemblies from the box and retain these components.
- Install leveling screws [4] as illustrated in FIGURE A within the documentation.
These preparatory steps ensure the floor box is correctly positioned and secured before the concrete is poured around it.
Post-Concrete Pour Installation
Following the concrete pour, the installation process continues with the following steps:
- Make conduit connections in accordance with the applicable electrical codes and the specific requirements of the application.
- The wiring channel [5] can be positioned on either side of the box. Reinstall the mounting plate [3], aligning the short leg with the chosen wiring channel, as shown in FIGURE B.
- Remove transition [2] and mounting plate [3] assemblies from box and retain.
- Install leveling screws [4] as shown in FIGURE A.
- Make conduit connections in accordance with application and applicable electric codes.
Wiring and Safety Considerations
The documentation stresses the importance of safety during installation and servicing. A caution is provided regarding the risk of electrical shock, mandating disconnection of power before any work is performed. Furthermore, a notice emphasizes that installation must be carried out by a qualified electrician, adhering to all national and local electrical codes and communications standards.
A critical safety notice highlights the need to separate data/communications circuits from lighting/power circuits, in accordance with the National Electrical Code (NEC) and CE Code requirements. This separation is crucial for maintaining signal integrity and preventing interference.
Cover Installation
The CFB2G25R floor box is designed for use with specific round cover series. Compatible covers include the CFBS1R6CVRxx series and the CFBS1R6FFCVRxx series round furniture feed covers.
The cover installation process involves the following steps:
- Apply sealant compound around the perimeter on the underside of the flange [11].
- Attach the flange [11] to the cover support collar [9] using #8-32 flat head screws [12] provided with the cover.
- Tighten the screws to a torque of 10-15 lbs-in (1.1 - 1.7 N m).
The use of sealant and proper torque specifications are essential for ensuring a secure and watertight seal between the cover and the floor box. The documentation provides visual references in FIGURES E, F, and G to aid in this process.
Component Identification
The documentation includes a labeled diagram identifying key components of the CFB2G25R floor box. These components include:
- [1] #8-32 pan head screws
- [2] Transition
- [3] Mounting plate
- [4] Leveling screws
- [5] Wiring channel
- [9] Cover support collar
- [10] (Not explicitly described in installation steps)
- [11] Flange
- [12] #8-32 flat head screws
Understanding the function of each component is crucial for proper installation and maintenance.
General Product Information
Hubbell Wiring Device-Kellems offers a selection of floor boxes for both commercial and residential settings. These floor boxes are designed to provide efficient access to power and data connections while maintaining a discreet and aesthetically pleasing appearance. The company emphasizes the uniform look provided by their floor boxes for both pre-wired and floor-wired cables. Resources such as specifications, literature, drawings, videos, and tools are available to assist with planning and installation.
Conclusion
The Hubbell CFB2G25R is a 2-gang recessed shallow floor box designed for straightforward installation when following the provided instructions and adhering to relevant electrical codes. Proper installation, including correct wiring practices and secure cover attachment, is critical for ensuring safe and reliable operation. The documentation highlights the importance of qualified electrician involvement and emphasizes safety precautions throughout the installation process. The compatibility with specific round cover series allows for a finished appearance suitable for various applications.

