SIEMENS FB-300 Backboxes and Door Instruction Manual
- June 9, 2024
- SIEMENS
Table of Contents
SIEMENS FB-300 Backboxes and Door
FB-300 and FB-301 BACKBOXES
The Model FB-300 and FB-301 backboxes from Siemens Industry, Inc., are used
for mounting Firefighters’ Telephone Stations. The FB-300 backbox is flush
mounted and the FB-301 backbox is surface mounted.
Consider the following when mounting the backbox:
- Mounting height for access
- Weight and size of the enclosure
- Local mounting codes
Fasten the backbox securely to a clean, dry, shock-free, and vibration-free surface. Position the backbox clear of obstructions so that the FC-300 door opens freely and the equipment is easily accessible.
INSTALLATION
To install the FB-300 Flush Mount backbox:
- Remove the knockouts in the backbox where field wiring is required.
- Hold the empty enclosure against the wall at a height that provides easy access. Be certain that the word “TOP” is facing up. Mark the location.
- Cut the necessary hole in the wall for the FB-300 enclosure (See Table 1, DIMENSIONS).
- Mark drill points on the wall in the center of the two holes on the upper rear of the backbox and the two holes on the bottom of the backbox.
- Drill the four holes.
- Use the proper screw size of the 1/4″ hole in the backbox (not supplied). Securely fasten the backbox to the wall with screws in the two top and two bottom holes.
To install the FB-301 Surface Mount backbox:
- Remove the knockouts in the backbox where field wiring is required.
- Hold the empty enclosure against the wall at a height that provides easy access. Be certain that the word “TOP” is facing up.
- Mark drill points on the wall in the center of the two holes on the upper rear of the backbox.
- Drill the two holes.
- Use the proper screw size of the 1/4″ hole in the backbox (not supplied). Securely fasten the backbox to the wall with screws in the two top and two bottom holes.
FC-300 Door
The Model FC-300 door from Siemens Industry, Inc., is the door for both the FB-300 and FB-301 backboxes. The door is supplied with break glass and a lock. For break glass installation or replacement, refer to the FT-GLS Installation Instructions, P/N 315-081189.
To install the FC-300 door:
- Install the FC-300 door on the FB-300 or FB-301 backbox using the four #6-32 screws provided.
Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ
Siemens Canada Limited
Building Technologies Division
2 Kenview Boulevard
Brampton, Ontario L6T 5E4 Canada
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