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SubConn Micro Circular series

To accommodate market demands for ever more flexible, dependable and cost efficient underwater connectivity solutions, SubConn® Micro connectors are available.


The SubConn® Micro Circular series has enhanced sealing capability and utilise a uniform contact size and design. Based on the original SubConn® Circular series, SubConn® Micro Circular connectors were developed to suit the increasingly more compact design of underwater instruments, equipment and systems.


The SubConn® Micro Circular connectors are available with 2 to 21 contacts rated at 300 V from 5 to 10 A in the standard inline version and in bulkhead versions.


The SubConn® Micro Circular connectors are manufactured from high-grade neoprene and a variety of body material options and feature a high ocean depth rating. The SubConn® Micro Circular connectors have enhanced sealing capability and utilise a uniform contact size and design.

Applications include

  • Offshore oil and gas, renewable energy and subsea systems
  • Defence 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

Options include

  • Customised harness cables and direct moulding to selected polyurethane (PUR) cables
  • Customer specified cable, pigtail and bulkhead thread lengths
  • Customer specified connector body material
  • Certified pressure testing to specific ocean depths

SubConn Micro Circular - 1 contact

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SubConn Micro Circular - 2, 3, 4, 5, 6 and 8 contacts and G2 2, 3 and 4 contacts

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SubConn Micro Circular Double O-ring - 2, 3, 4, 5, 6 and 8 contacts and G2 2, 3 and 4 contacts

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SubConn Micro Circular - 10, 12 and 16 contacts

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SubConn Micro Circular Double O-ring - 10, 12 and 16 contacts

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SubConn Micro Circular - 21 contacts

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3D files 

Please note that our 3D files are not 100 p.c. dimensionally stable.

If a 3D file is needed for tolerance issues, please contact MacArtney for more information.

Step files

Micro Circular
Bulkhead (MCBH)
MCBH2F.stp MCBH2F-G2.stp MCBH2F-G2 w 2 o-ring 20mm Hex.stp MCBH2F 2 O-ring 20mm Hex.stp MCBH2F 2 O-ring 22mm Hex.stp MCBH2M 2 O-ring 20mm Hex.stp MCBH2F-G2 w 2 o-ring 22mm Hex.stp MCBH2M.stp MCBH2M 2 O-ring 22mm Hex.stp MCBH2M-G2.stp MCBH2F-G2-WB.stp MCBH2M-G2 w 2 o-ring 20mm Hex.stp MCBH2M-G2 w 2 o-ring 22mm Hex.stp MCBH3F.stp MCBH3F 2 O-ring 22mm Hex.stp MCBH3F 2 O-ring 20mm Hex.stp MCBH3F-G2 w 2 o-ring 22mm Hex.stp MCBH3F-G2 w 2 o-ring 20mm Hex.stp MCBH3F-G2.stp MCBH3M 2 O-ring 20mm Hex.stp MCBH2M-G2-WB.stp MCBH3M 2 O-ring 22mm Hex.stp MCBH3M.stp MCBH3M-G2.stp MCBH3M-G2 w 2 o-ring 20mm Hex.stp MCBH3M-G2 w 2 o-ring 22mm Hex.stp MCBH4F 2 O-ring 20mm Hex.stp MCBH3F-G2-WB.stp MCBH4F.stp MCBH3M-G2-WB.stp MCBH4F-G2.stp MCBH4F 2 O-ring 22mm Hex.stp MCBH4F-G2 w 2 o-ring 20mm Hex.stp MCBH4M 2 O-ring 22mm Hex.stp MCBH4M 2 O-ring 20mm Hex.stp MCBH4M.stp MCBH4F-G2 w 2 o-ring 22mm Hex.stp MCBH4M-G2 w 2 o-ring 20mm Hex.stp MCBH4M-G2.stp MCBH4F-G2-WB.stp MCBH4M-G2 w 2 o-ring 22mm Hex.stp MCBH5F.stp MCBH5F 2 O-ring 20mm Hex.stp MCBH5F 2 O-ring 22mm Hex.stp MCBH4M-G2-WB.stp MCBH5M 2 O-ring 22mm Hex.stp MCBH5M.stp MCBH5M 2 O-ring 20mm Hex.stp MCBH5F-WB.stp MCBH6F 2 O-ring 20mm Hex.stp MCBH5M WB.stp MCBH6F 2 O-ring 22mm Hex.stp MCBH6F.stp MCBH6M 2 O-ring 22mm Hex.stp MCBH6M.stp MCBH6M 2 O-ring 20mm Hex.stp MCBH6F-WB.stp MCBH6M WB.stp MCBH8F.stp MCBH8F 2 O-ring 20mm Hex.stp MCBH8M 2 O-ring 20mm Hex.stp MCBH8M 2 O-ring 22mm Hex.stp MCBH8F 2 O-ring 22mm Hex.stp MCBH8M.stp MCBH10F 2 O-ring 22mm Hex.stp MCBH10F.stp MCBH8F WB.stp MCBH10M 2 O-ring 22mm Hex.stp MCBH10M.stp MCBH12F.stp MCBH12F 2 O-ring 22mm Hex.stp MCBH12M 2 O-ring 22mm Hex.stp MCBH12M.stp MCBH8M WB.stp MCBH16F.stp MCBH16F 2 O-ring 22mm Hex.stp MCBH16M 2 O-ring 22mm Hex.stp MCBH21M.stp MCBH21F.stp MCBH16M.stp
Dummy connector (MCDC)
MCDC1F.stp MCDC1M.stp MCDC2F.stp MCDC2F-G2.stp MCDC2M.stp MCDC2M-G2.stp MCDC3F-G2.stp MCDC3M-G2.stp MCDC3F.stp MCDC4F-G2.stp MCDC4F.stp MCDC3M.stp MCDC5F.stp MCDC5M.stp MCDC8F.stp MCDC6M.stp MCDC8M.stp MCDC6F.stp MCDC10F.stp MCDC10M.stp MCDC12M.stp MCDC12F.stp MCDC16F.stp MCDC4M.stp MCDC16M.stp MCDC4M-G2.stp MCDC21F.stp MCDC21M.stp
Inline (MCIL)
MCIL1F.stp MCIL1M.stp MCIL2F.stp MCIL2F-G2.stp MCIL2M.stp MCIL2M-G2.stp MCIL3F-G2.stp MCIL3F.stp MCIL3M.stp MCIL4F.stp MCIL3M-G2.stp MCIL4F-G2.stp MCIL4M.stp MCIL5F.stp MCIL4M_G2.stp MCIL6M.stp MCIL6F.stp MCIL5M.stp MCIL8F.stp MCIL8M.stp MCIL10F.stp MCIL10M.stp MCIL12F.stp MCIL12M.stp MCIL16F.stp MCIL16M.stp MCIL21F.stp MCIL21M.stp
Overmould (MCOM)
MCOM2F.stp MCOM2F-G2.stp MCOM2M.stp MCOM2M-G2.stp MCOM3M.stp MCOM3M-G2.stp MCOM3F-G2.stp MCOM3F.stp MCOM4F.stp MCOM4F-G2.stp MCOM4M.stp MCOM5F.stp MCOM6M.stp MCOM4M-G2.stp MCOM6F.stp MCOM5M.stp MCOM8F.stp MCOM8M.stp MCOM10F.stp MCOM12M.stp MCOM12F.stp MCOM10M.stp MCOM21F.stp MCOM21M.stp MCOM16F.stp MCOM16M.stp
Pressure balanced oilled filled (MCPBOF)
MCPBOF2F.stp MCPBOF2F-G2.stp MCPBOF2M.stp MCPBOF2M-G2.stp MCPBOF3M-G2.stp MCPBOF3F.stp MCPBOF3M.stp MCPBOF3F-G2.stp MCPBOF4F.stp MCPBOF4F-G2.stp MCPBOF4M.stp MCPBOF4M-G2.stp MCPBOF5M.stp MCPBOF5F.stp MCPBOF6M.stp MCPBOF6F.stp MCPBOF8F.stp MCPBOF8M.stp MCPBOF10M.stp MCPBOF10F.stp MCPBOF12M.stp MCPBOF12F.stp MCPBOF16F.stp MCPBOF16M.stp
Right Angle (MCRA)
MCBHRA2F.stp MCBHRA2F-G2.stp MCBHRA2M.stp MCBHRA2M-G2.stp MCBHRA3F-G2.stp MCBHRA3M.stp MCBHRA3F.stp MCBHRA4F.stp MCBHRA3M-G2.stp MCBHRA4F-G2.stp MCBHRA4M.stp MCBHRA4M-G2.stp MCBHRA5F.stp MCBHRA6F.stp MCBHRA5M.stp MCBHRA6M.stp MCBHRA8F.stp MCBHRA8M.stp MCBHRA16M.stp MCBHRA16F.stp

X_B files

Micro circular
Bulkhead (MCBH)
MCBH2F.x_b MCBH2M.x_b MCBH2M-G2.x_b MCBH3F.x_b MCBH3F-G2.x_b MCBH2F-G2.x_b MCBH3M-G2.x_b MCBH3M.x_b MCBH4F.x_b MCBH4F-G2.x_b MCBH4M.x_b MCBH4M-G2.x_b MCBH6F.x_b MCBH5M.x_b MCBH6M.x_b MCBH5F.x_b MCBH8M.x_b MCBH8F.x_b MCBH10F.x_b MCBH10M.x_b MCBH12F.x_b MCBH12M.x_b MCBH21F.x_b MCBH16M.x_b MCBH16F.x_b MCBH21M.x_b
Dummy connector (MCDC)
MCDC1F.x_b MCDC1M.x_b MCDC2M.x_b MCDC2F.x_b MCDC2F-G2.x_b MCDC3F-G2.x_b MCDC2M-G2.x_b MCDC3F.x_b MCDC3M-G2.x_b MCDC4F.x_b MCDC3M.x_b MCDC4F-G2.x_b MCDC4M.x_b MCDC5F.x_b MCDC4M-G2.x_b MCDC6M.x_b MCDC5M.x_b MCDC8F.x_b MCDC6F.x_b MCDC8M.x_b MCDC10F.x_b MCDC12F.x_b MCDC10M.x_b MCDC12M.x_b MCDC16F.x_b MCDC16M.x_b MCDC21F.x_b MCDC21M.x_b
Inline (MCIL)
MCIL1F.x_b MCIL1M.x_b MCIL2F.x_b MCIL2M-G2.x_b MCIL2F-G2.x_b MCIL2M.x_b MCIL3F.x_b MCIL3F-G2.x_b MCIL3M.x_b MCIL4F.x_b MCIL3M-G2.x_b MCIL5F.x_b MCIL4M_G2.x_b MCIL4F-G2.x_b MCIL4M.x_b MCIL5M.x_b MCIL6F.x_b MCIL6M.x_b MCIL8M.x_b MCIL8F.x_b MCIL10F.x_b MCIL10M.x_b MCIL12M.x_b MCIL16F.x_b MCIL12F.x_b MCIL16M.x_b MCIL21F.x_b MCIL21M.x_b
Overmould (MCOM)
MCOM2F.x_b MCOM2F-G2.x_b MCOM2M.x_b MCOM2M-G2.x_b MCOM3F.x_b MCOM3F-G2.x_b MCOM3M.x_b MCOM4F.x_b MCOM4F-G2.x_b MCOM3M-G2.x_b MCOM4M.x_b MCOM5F.x_b MCOM5M.x_b MCOM6F.x_b MCOM4M-G2.x_b MCOM6M.x_b MCOM8F.x_b MCOM8M.x_b MCOM10M.x_b MCOM10F.x_b MCOM12F.x_b MCOM12M.x_b MCOM21F.x_b MCOM16F.x_b MCOM16M.x_b MCOM21M.x_b
Pressure balanced oilled filled (MCPBOF)
MCPBOF2F.x_b MCPBOF2F-G2.x_b MCPBOF2M-G2.x_b MCPBOF3M.x_b MCPBOF2M.x_b MCPBOF3F.x_b MCPBOF3F-G2.x_b MCPBOF4F.x_b MCPBOF3M-G2.x_b MCPBOF4M.x_b MCPBOF4F-G2.x_b MCPBOF5F.x_b MCPBOF4M-G2.x_b MCPBOF6F.x_b MCPBOF5M.x_b MCPBOF8M.x_b MCPBOF6M.x_b MCPBOF8F.x_b MCPBOF12F.x_b MCPBOF10F.x_b MCPBOF10M.x_b MCPBOF12M.x_b MCPBOF16F.x_b MCPBOF16M.x_b
Right Angle (MCRA)
MCBHRA2F-G2.x_b MCBHRA2F.x_b MCBHRA2M-G2.x_b MCBHRA3F-G2.x_b MCBHRA3F.x_b MCBHRA4F.x_b MCBHRA4F-G2.x_b MCBHRA3M-G2.x_b MCBHRA3M.x_b MCBHRA4M.x_b MCBHRA2M.x_b MCBHRA5F.x_b MCBHRA4M-G2.x_b MCBHRA5M.x_b MCBHRA6M.x_b MCBHRA6F.x_b MCBHRA8F.x_b MCBHRA8M.x_b MCBHRA16M.x_b MCBHRA16F.x_b