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For varying cable dimensions and EMC and G&B capabilities
At sea On land

The E-Addblock has both EMC and G&B capabilities. There are eleven different sizes. By tearing off the wing-like inserts, which are of varying thickness, and inserting them in the main block it is possible to accommodate 66 different cable and pipe dimensions, from 3.5 mm to 69.5 mm. The inserts are fitted with a locating ridge that fits exactly into furrows in the main block. These stop the block from ”telescoping”. A seal using E-AddBlocks is as secure and tight as one using standard blocks. Both types can be combined in a transit, which makes the MCT Brattberg seal system very flexible.


  • All dimensions are exactly the same for the standard MCT Brattberg components.
  • All Insert Blocks are marked with yellow marking (see instructions).

Grounding and Bonding

  • For grounding & bonding applications standard presswedge or endpacking is sufficient. 
  • Series RGS, RGB, RGG, and E-RGP These products are primarily intended for grounding and bonding of communication, instrument, power, braid or wire armored cables and copper pipes, up to max. 1 AWG.
  • Plugs and Wraps are only for use in Grounding and Bonding applications, not EMC
  • G&B datasheet

Correct and safe installations

To achieve the highest standard of safety, a cable or pipe transit must be installed correctly. As there are many different types of frame – which may be either welded, bolted or glued into position – and insert block, it is essential that installers known when to use the most appropriate installation method.

For more information, please view following instructions, videos or download manuals as PDFs.

RGS EMC Installation
E-Addblock Instructions

For more information visit Instructions and manuals

E-AddBlocks are all the same length as standard blocks, 60 mm. The width of standard blocks (measurement, see table) are 20, 30, 40, 60 or 90 mm.

E Addblock System
E-Addblock sizes

Similar products


Standard Block

For a fast and safe installation

Designed to seal cables and pipes with diameters from 3.5 – 110 mm (0.14-4.33”). Other dimensions can be supplied to order.

See specs and variations  for Standard Block

E-Standard Block

For EMC and G&B capabilities

The E-Block has an integral copper sheet as discharging and shielding protection for protection against EMI, EMP and ESD

See specs and variations  for E-Standard Block


For great flexibility

Newly developed. Provides greater flexibility, simple and safe installation.

See specs and variations  for Handiblock


For varying cable dimensions

Available in eleven block sizes and 66 cable dimensions.

See specs and variations  for AddBlock