SubConn Circular Series

Introducing the SubConn® Circular Series – the cornerstone of SubConn® products renowned for their reliability and durability in underwater and harsh marine environments. Since its introduction in 1978, this connector series has set the industry standard, offering a robust connectivity solution for a wide range of applications.

The SubConn® Circular series provides versatility with various standard size configurations, ranging from 1 to 25 contacts. These connectors enable the combination of signal and power within a single connector, streamlining electrical connections. Constructed from high-grade chloroprene rubber and available in different body material options, they boast a high depth rating to withstand demanding conditions.

Choose from different standard shell sizes with contacts rated at 600 V up to 10 A. The SubConn® Circular connectors are available in bulkhead, inline, Pressure Balanced Oil Filled (PBOF), and field-installable overmold versions. Bulkhead connectors come with color-coded or numbered Teflon (PTFE) leads for easy identification.

For seamless integration, SubConn® Circular connectors offer a range of accessories including dedicated cables, locking sleeves, pressure-proof dummy connectors, and other more. These cables are made from flexible and water-resistant chloroprene rubber or polyurethane (PUR). Locking sleeves are available in injection molded polyoxymethylene (POM) or stainless steel, accompanied by stainless steel retaining snap rings.


  • Offshore oil and gas, renewable energy, and subsea systems
  • Defense systems and equipment
  • Oceanographic systems, equipment, and instrumentation solutions
  • Remotely Operated Vehicle (ROV) and Remotely Operated Towed Vehicle (ROTV) systems
  • Underwater camera, video, and lighting systems
  • Ocean bottom seismic systems
  • Diving systems and equipment


  • Customized harness cables and direct molding to selected polyurethane (PUR) cables
  • Customer-specified cable, wire leads, and bulkhead thread lengths
  • Customer-specified connector body material
  • Certified pressure testing to specific ocean depths

3D files

Please note that our 3D files are not 100% dimensionally stable.
If you require a 3D file for tolerance issues, please get in touch with MacArtney for further information.

Step files

X_B files



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