MBS-E
Mechanical fuse screw joints
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MBS-E
Mechanical fuse screw joints
Documentation
Description
The MBS-E mechanical joint connectors are designed for the safe and reliable connection of copper and aluminum conductors in modern power generation, transmission, and distribution systems.
The connection is achieved through mechanical clamping with stepless screws. These screws have no predetermined breaking point and ensure that the optimal torque is reached, reducing installation errors and improving clamping quality. The anti-friction disc reduces friction, increases contact force, and prevents damage to the conductor strands.
CEMBRE screws also maintain traceability after breakage, with the batch number marked on the screw base, simplifying maintenance operations and ensuring compliance with industry standards.
The central stop ensures correct conductor positioning, prevents oil leakage in oil-impregnated conductors, and enables transitions from polymer to oil-impregnated conductors.
They offer:
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The connection is achieved through mechanical clamping with stepless screws. These screws have no predetermined breaking point and ensure that the optimal torque is reached, reducing installation errors and improving clamping quality. The anti-friction disc reduces friction, increases contact force, and prevents damage to the conductor strands.
CEMBRE screws also maintain traceability after breakage, with the batch number marked on the screw base, simplifying maintenance operations and ensuring compliance with industry standards.
The central stop ensures correct conductor positioning, prevents oil leakage in oil-impregnated conductors, and enables transitions from polymer to oil-impregnated conductors.
They offer:
- Easy installation: no crimping tools required — a hex socket spanner is sufficient.
- Reduced installation errors: optimal breakaway torque guaranteed by stepless technology.
- Versatility: one connector covers multiple conductor cross-sections.
- Reliability and safety: high-performance electrical contact even in harsh conditions.
- Guaranteed traceability: markings remain visible after screw breakage.
- Safer installation: removable centering devices and protective caps eliminate sharp edges.
Common features in table.
Features
Details by type in expandable section below.
Minimum operating temperature
-58 °F
Maximum operating temperature
302 °F
Type of connector
butt blind connector
Central stop
Yes
Geometry of the clamping element
Hexagonal wrench
Surface treatment
tin plating
Grease inside the barrel
Yes
Number of clamping elements
4
Torque of the clamping element
40 Nm
Range of cable cross section
1 AWG ÷ 500 kcmil
Conductor body material
Alluminio con purezza superiore al 99,5%
Clamping element material
brass
Centering device material
Polyamide PA6
Spanner size
0.24 in
Total length
4.88 in
Inner diameter of the barrel
0.79 in
Cable stripping length
2.68 in
Outer diameter of barrel
1.34 in
Unit in minimal packaging
1 PCE
Unit in standard packaging
6 PCE
Customs code
85369010
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