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Cobalt Series Bulkhead Connector

Cobalt Series Bulkhead Connector


Cobalt Series bulkhead connector for use with Cobalt Series Cable, Single-ended; Cobalt Series Cable, Double-ended; or Cobalt Series Cable Termination Kit (sold separately).  Rated to 600 m depth, includes M10 X 1.5 nut.  1-pin*, 3-pin, 3-pin Power, 4-pin, 6-pin, 6-pin Hybrid, and 8-pin versions available.




SKUs: COB-1130-SS COB-113P0-SS COB-1140-SS COB-1160-SS COB-116H0-R1 COB-1180-R1


*For 1-pin bulkheads, see the Specialty Cobalt Connectors and Cables page.

Cobalt Series dry-mate underwater connectors and cables from Blue Trail Engineering set a new standard for small waterproof connectors.  Cobalt connectors offer the same reliability as larger subsea connectors, but at a fraction of the cost.  With 316 stainless steel shells and PEEK inserts, they withstand long-term use in seawater at depths up to 600 meters.  In spite of their compact size, Cobalt connectors can handle high currents.  Connector shells are keyed and feature a scoop-proof design, allowing them to be mated blind with no possibility of pin damage.


Cobalt connectors achieve a hermetic seal without the need for potting or overmolding, making them more affordable than traditional molded connectors.  The electrical contacts are pressed into a machined PEEK insert, which is in turn pressed into the stainless steel connector shell.


In addition to reducing cost, the unique design of Cobalt connectors increases their reliability.  Without a bonded rubber overmold, there is no danger of leakage due to cathodic delamination.  A simple, proven O-ring seal between the male and female connectors makes Cobalt connectors both easier to use and more reliable than wet-mate connectors.


Perfect for space-limited applications, Cobalt connectors take up a fraction of the volume of the industry-standard Micro-Circular connectors.


Stock connectors and cables typically ship in 2-3 days.  Custom items or large orders ship in 1-2 weeks.


The Cobalt bulkhead connector fits in the same 10-mm hole as Blue Robotics penetrators, making quick-connect and quick-disconnect possible with Blue Robotics thrusters, tethers, enclosures, lights, grippers, and other accessories.  A Cable Termination Kit allows the user to retrofit an existing Blue Robotics thruster with a Cobalt connector.


The Cobalt bulkhead connector is available in 1-pin*, 3-pin, 3-pin power, 4-pin, 6-pin, 6-pin hybrid, and 8-pin versions.  It can be installed in the wall of any enclosure, provided that the enclosure has a smooth outer surface to seal against the connector’s O ring.  COBALT BULKHEAD CONNECTOR MUST BE USED WITH COBALT CABLE OR CABLE TERMINATION KIT (sold separately).


*For 1-pin bulkheads, see the Specialty Cobalt Connectors and Cables page.

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