Dome Fiber Optic Splice Enclosure Model: MBN-FOSC-B3

MBN-FOSC-B3 dome fiber optic splice enclosure is manufactured and supplied from China supplier, constructed of highly chemical resistant material, used for arrangment and protection of the optic cable splicing, plays an important role in the FTTx network, with features of superior weathproof, competitive price and long service life up to 30 years. Free sample and flexible payment iterms avaliable. If you are interested in our fiber splice enclosure products, please don’t hesitate to contact us for more details.

  • Model: MBN-FOSC-B3
  • Dimension: 40x14CM (H*D)
  • Capacity: 72 Cores(3X 24F Trays)
  • Cable Ports: 2 In 2 Out, 4 Ports
  • Cable Diameter: Φ8.0-Φ22.0mm
  • Material: Strengthen PC
  • Sealing Structure: Mechanical Sealing
  • Weight: 2.35KGS
  • Installation: Aerial, Direct-Burying, Wall-Mounting, Pipeline Laying Way
  • Protection Grade: IP68

Something about the MBN-FOSC-B3 splice closure you need to know

MBN-FOSC-B3 Mechanical Sealing Dome Splice Closure provides space and protection for the fiber optic cable splicing and joint. Dome Splice Closure belongs to the accommodation of the optical fiber fusion splice section system. Dome Splice Closure is widely applied to the connection of the fiber play the roles in sealing, protection, installation of fiber connector head, and storage.

Name4 Ports Mechanical Sealing Dome Fiber Optic Splice Enclosure Up To 72 Cores
Dimension40x14CM (H*D)
Max Capacity72 Cores (3X 24 F trays)
Cable Ports2 In 2 Out, 4 Ports
Cable DiameterΦ7~Φ22mm
Sealing StructureMechanical Sealing
MaterialStrengthen Polymer Plastic
InstallationAerial, Direct-Burying, Wall-Mounting, Pipeline Laying Way
Protection GradeIP68
Packing InformationSize:82X45X42CM,  8PCS/CTN, G.W.:21KGS


1. Single-ended thermoplastic closure
2. Fabricated by mixing the imported material and other chemical assistant agents (aging resistance & ultraviolet radiation resistance), an increase of service life
3. Base-to-dome seals on MBN-FOSC-B3 are mechanical for ease of installation and re-entry. No other sealing adhesive tape is needed.
4. Base and dome sealed with clamp and O-ring system
5. The splice trays are hinged for access to any splice without disturbing others trays
6. The inner parts and fixing parts are made of stainless steel
7. MBN-FOSC-B3 with an earthing device protect it from damage by lightning
8. Compatible with most cable types (single fiber or ribbon), and cable constructions (loose tube, central core, slotted core, modular). And the product can be used in any environment (aerial, buried, handhole, manhole) and in many applications (tap-off, expressed, branch, and repair)
9. No special tools are needed to open the closure, and it can be opened and used repeatedly.


CATV networks
Optical fiber communication
Fiber optic network convergence
Optical fiber access network
Widely used in FTTH access network
Telecommunication networks
Data communications networks
Local area networks
Aerial, Direct buried, underground, pipeline, hand-holes, duct mounting, wall mounting.