5184F TN Optical Closure

Sumitomo Electric Lightwave’s newest TN Closure features a capacity of up to 5184 fibers. Additional features include a main body assembly structure features buckles for easy accessibility. Soft rubber gromments in the cable sealing structure protect the high fiber count splices from the elements.

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Product Information



Splice Capacity5,184f (Pliable Ribbon)
1,728f (Standard Ribbon)
288f (Loose Tube)
Splice Tray Capacity216f (Pliable Ribbon)
72f (Standard Ribbon)
12f (Loose Tube)

Physical Characteristics

Height9.7 in (246 mm)
Width11.3 in (293 mm)
Depth24.3 in (618 mm)

Ordering Information

Part NumberDescription
FTC-TN5184 Optical Closure TN5184, Capacity of 5,184 fibers, 432 x 12f Ribbon Splices
BRTN-M Cable Sealing Kit M, for Cable with 0.31 – 1.26 in (8 – 32 mm) Diameter


  • High Splice Capacity Underground Closure
  • Best Suitable to Ultra High Fiber Count Cable Up to 5,184 Fibers
  • Butt Joint and Branch Joint (2 Main + 1 Branch) Available
  • Fully Re-Usable Closure with Soft Rubber Grommets at Cable Entries
  • Applicable Cable Diameter:
    • 33 mm to 35 mm / 1.30” to 1.38”: By Standard Kit in FTC-TN5184
    • 8 mm to 32 mm / 0.32” to 1.26”: By Optional Cable Sealing Kit M
    • IP Rating: IP68