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3M™ Fiber Optic Splice Closure 2178-LS

3M ID  80610933154    UPC#  00051138577780    3M Product Number  2178-LS     
3M(TM) 2178-LS Large Fiber Optic Splice Case
3M(TM) 2178-LS Large Fiber Optic Splice Case
The compact 3M™ Fiber Optic Splice Closure 2178-LS features a rugged closure tested under harsh, real-world conditions to stand up to even the most severe conditions of moisture, vibration, and extreme temperatures.
  • Designed with larger and smaller interchangeable closure halves so you can select the size case that meets your needs today but with the flexibility to expand for the future
  • Cable ports and space for trays can be added at reentry with the 2181-L/S Cable Addition Kit
  • The ease of installation is unsurpassed, requiring no special tools or complicated training procedures
  • The closures are easily re-enterable
  • To allow access to the splics.
  • Features a tough, rigid non-filled case, tested under real-world conditions, that stands up to even the most severe conditions of moisture, vibration and extreme temperatures
  • The closure will withstand up to 90.7 kg (200 lbs.) compression
  • Includes changes to improve the cable strain relief and a movable tray support
  • The closures hold cables of varying sizes and provide flexibility to add ports on both ends with the cable addition kit
  • Can be used with the 2522 or 2523 Fiber Splice Organiser Trays or the Fibrlok™ 2524 Small Fiber Splice Organiser Tray
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    Suggested Applications
  • Designed for the protection of fiber optic connections
  • The compact size of the 2178-LS closure makes it ideal for aerial strand, pedestal and hand hole splicing. Specifically designed for inline or butt splicing applications, the closure has two 1.0” cable entry ports per end. The multiport grommet feature provides for simple, flexible and future-proof drop or small diameter branch cable additions. The maximum single fusion and mass fusion splice capacity for the 2178-LS closure is 288 and 864, respectively. The fiber optic splice closure 2178-LS is Rural Development (RUS) Listed. If additional space is needed for buffer tube slack storage, please refer to the 2178-LL closure (larger bottom). If you cannot find a model that works for you below, 3M can customize a closure for you. Please call a 3M representative.


    ApplicationAerial Strand Mount, Pedestal, Pole Mount, Underground, Wall Mount
    Branch Cable Port Diameter0.20 to 1.00 Inch
    Cable TypeArmored, Dielectric
    China RoHS - Below MCVYes
    Closure Height8.00 Inch
    Closure Length21.90 Inch
    Closure SealGasket
    Closure TypeBolted Half
    Closure Width8.50 Inch
    Compatible With2178-LS, 2527-144-MF Tray, 2527-24-SF Tray, 2527-48-SF Tray
    Component TypeSplice Closure
    EU RoHS CompliantYes
    Express Cable Port Diameter0.20 to 1.00 Inch
    Flame RetardantNo
    Maximum Number of Ports12, 16, 2, 4, 6, 8
    Maximum Number of Splice Trays6 Trays, 7 Trays
    Number Grounding Kits included0
    Number of Cable Entry Kits Included3
    Number of Ground Lugs Included2
    Number of Ports0, 2
    Number of Splice Trays Included0 Trays
    RUS ListedYes/BA
    Seal TypeWatertight
    Splice ConfigurationButt, Inline
    Splice TypeMass Fusion, Single Fusion