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Industrial connectors, backshells and contacts

8559 series modular junction blocks

Eaton's 8559 terminal junctions consist of a rail profile support where termination modules with removable contacts may be stacked. Modules are retained in the extrusion by module clamps at each end. These terminal junctions are beneficial for building interconnection combinations of variable and transformable composition under a compact geometry. This solution adapts well to high-end intricate interconnections with high-density cabling.

Our design ensures a high reliability level compatible with the most stringent environmental conditions. Two types of modules are available depending on contact sizes: 21 contacts size 22, or 10 contacts size 20. Modules are developed in unsealed and sealed versions and provide for internal shunting of contacts by groups, as shown in the interconnection diagrams printed on the upper face of individual modules.

Applications include various flight systems such as lighting and avionics as well as power distribution and junction boxes.

Core features

  • Flight proven 
  • Standard qualified: NSA937901, EN3708, ABS1569
  • Versatile: sealed/unsealed, contact size 20 and 22 
  • Easy to install on a mounting rail 
  • RoHS compliant 
  • Layouts using CAN bus technology available
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