Blue Robotics
Ordered for you — ships in about 7 business days
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, 6-pin USB, and 8-pin versions available.
SKUs: COB-1130-SS COB-113P0-SS COB-1140-SS COB-1160-SS COB-116H0-R1 COB-1160-USB 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, 6-pin USB, 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.
|
Environmental |
|
|
Depth Rating |
600 meters |
|
Operating Temperature |
0° C to +50° C |
|
Electrical |
|
|
Rated voltage and current (all current ratings are in air unless specified otherwise) |
1-pin: 400 VDC, 65 amps in air, 100 amps in water 3-pin: 400 VDC, 12 amps per pin 3-pin Power: 400 VDC, 20 amps per pin 4-pin: 400 VDC, 15 amps per pin in air, 20 amps per pin in water 6-pin: 400 VDC, 5 amps per pin 6-pin Hybrid: 150 VDC; 2x 20 amps per pin, 4x 3 amps per pin 6-pin USB: 150 VDC; 2x 3 amps per pin, 2x 1 amp per pin 8-pin: 150 VDC, 3 amps per pin |
|
Wire size and stranding |
1-pin: 10 AWG, 37/26 3-pin: 18 AWG, 19/30 3-pin Power: 16 AWG, 19/29 4-pin: 16 AWG, 19/29 6-pin: 22 AWG, 19/34 6-pin Hybrid: 2x 16 AWG, 19/29; 4x 24 AWG, 7/32 6-pin USB: 2x 24 AWG, 41/40; 2x 28 AWG, 19/40 8-pin: 24 AWG, 7/32 |
|
Wire configuration |
1-pin, 3-pin, 3-pin Power, 4-pin, and 6-pin: unshielded, untwisted 6-pin Hybrid: 2x unshielded, untwisted; 2x unshielded twisted pairs 6-pin USB: 2x 24 AWG untwisted, 28 AWG twisted pair, overall foil/braid 8-pin: 4x unshielded twisted pairs, Cat 5e |
|
Materials |
|
|
Bulkhead connector shell |
316 stainless steel |
|
Bulkhead connector insert |
PEEK |
|
Bulkhead connector pins |
gold-plated brass, gold-plated bronze, or gold-plated beryllium copper |
|
Cable connector shell |
316 stainless steel |
|
Cable connector insert |
PEEK |
|
Cable sockets |
gold-plated brass |
|
Cable jacket |
95A UV-stabilized polyurethane |
|
Wire insulation |
1-pin, 3-pin, 3-pin Power, 4-pin, and 6-pin: ETFE 6-pin Hybrid: ETFE, polyolefin 6-pin USB: polyethylene, PVC 8-pin: polyolefin |
|
O ring |
nitrile |
|
Locking sleeve |
acetal |
|
Dimensions |
|
|
Bulkhead connector threads |
M10 X 1.5 |
|
Bulkhead connector hex |
16 mm |
|
Locking sleeve threads |
M16 X 1.5 |
|
Cable outer diameter |
3-pin, 3-pin Power, 6-pin, and 6-pin USB: 6.4 mm 1-pin, 4-pin, 6-pin Hybrid, and 8-pin: 8.0 mm |
Cobalt Cable and Connector Instructions
Quick Guide to Cobalt Connectors
Need CAD files? Please see the Resources page.