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JBMT-S Medium voltage junction box “Sandwich” type

The “JBMT-S” medium voltage junction boxes allow you to make junctions or shunts of medium voltage cables.

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Medium voltage junction boxes are frequently used when inside a tunnel or an industrial plant it is necessary to transport power supply for long stretches via medium voltage cables.

Cear manufactures medium voltage junction boxes “Sandwich” type with nominal voltages up to 36 kV, which are designed for:

  • outdoor or tunnel installations;
  • protection of live parts from direct contacts;
  • avoid direct contact with live parts;
  • immediate and ready-to-use installation.

The junction box is designed for Medium Voltage cable pre-terminated with Elbow connectors and can be provided with two or more connections.


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Standards, safety and certifications

JBMT junction boxes comply with International IEC 62271-200 and European CEI 17-6 standards; CEI EN 62271-200.

Constructive features of medium voltage junction boxes JBMT-S

The JBMT junction boxes are made in their standard version in press-folded steel sheet suitably edged and reinforced with a thickness and paint suitable to withstand strong stresses and bad weather. All the parts in ferrous material of the components, the bolts and the small accessories are in stainless steel. On request, versions in stainless steel can be made.

Service and Environmental condition

The installation of the junction boxes foresees outdoor environmental conditions max 65 ° C and min -20 ° C and a standard degree of protection IP55. Other operating conditions and other degrees of protection can be evaluated on request.

Modularity and customization

– JBMT can be customized based on the number of incoming and outgoing cables, the type of cable gland or MCT most suitable for the use and the type of accessibility required.

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