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12/07/2025

MRBU 30 Pair Closure
Art.-No. 857-10051 | MRBTB-AXXFXXX | 

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MRBU showing 4 port base
MRBU showing 4 port base (side view)
MRBU Closure Dimensions
13 Port Base Configuration

    • Maximum 30 pair cable capacity
    • Cover length of 310mm
    • 2 base configurations a 4 port and a 13 port which offer 3 or 12 round ports and 1 oval port
    • Cablelok compatible for all port sizes
    • Quick release cover
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    Content MRBU 13 or 4 Port Base
    A-Length Cover
    Quick Release Clamp
    Sealing 'O' Ring
    Desiccant
    Cable Ties
    Cover Type A
    Method of Sealing Cablelok, Heatshrink
    PART DESCRIPTION MRBTB-AXXFXXX
    Package Content packed in box
    Port LM, B
    Port count 4
    Product Group MRBU 30 Pair Closure
    Technical Description The MRBU closure is supplied with a polypropylene base. Two base configurations of 12 round ports and 1 oval port or 3 round ports and 1 oval port which cover a cable diameter of 1.7 - 16.5mm (for the 4 and 13 Port Base) when using Cablelok mechanical seals and 6.0 - 22.0mm when using heatshrink (for the 4 Port Base). The cover diameter and length and 110 x 310mm and each closure has a maximum capacity of 30 copper pairs. Note: Heatshrink can only be used with the 4 port version.
    Type MRBTB-AXXFXXX
    Length (mm) 310mm
    Width D1 110mm
    Width D2 110mm
    ROHS compliant Yes
    Specifications
    Country of Origin GB
    GTIN-13 / EAN 5022660114861
    Packaging 1 - Height (m) 0.15m
    Packaging 1 - Length (m) 0.55m
    Packaging 1 - Qty 1
    Packaging 1 - Type box
    Packaging 1 - Volume (m³) 0.012375m³
    Packaging 1 - Weight (kg) 0.5kg
    Packaging 1 - Width (m) 0.15m
    ETIM 7.0 Key EC003517
    ETIM 8.0 Key EC003517
    ETIM 9.0 Key EC003517
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