Published on:2026-05-24 Click:32
Shanghai Kabel Intelligence Technology Co., Ltd Circular Series 2, 3, 4, and 5-contact underwater connectors (COBH/COIL). High current per contact, IP68, 7000m. SubConn Circular 2/3/4/5 compatible.
Low contact-count variants of the Circular Series from Shanghai Kabel Intelligence Technology Co., Ltd deliver the highest per-contact current ratings in the platform -- up to 25 A per contact for 2 and 4-pin variants. These connectors are the preferred choice for dedicated subsea power circuits: thruster motor power, battery charging, and high-brightness LED lighting systems where current density is the primary concern.
| Contacts | Bulkhead | In-Line | Max Current | Typical Load |
|---|---|---|---|---|
| 2 | COBH2M/F | COIL2M/F | 25 A | 48 V DC motor / battery |
| 3 | COBH3M/F | COIL3M/F | 25 A | 3-phase AC thruster motor |
| 4 | COBH4M/F | COIL4M/F | 25 A | Power + 2 signal or 4-wire 3-phase |
| 5 | COBH5M/F | COIL5M/F | 20 A | Power + RS-485 or Ethernet pair |
Email: sales@rovcable.com | www.rovconnector.com
The larger Circular Series shell diameter allows each contact to have a larger cross-section and more thermal mass than the Micro Circular Series. With only 2-4 contacts sharing the shell, heat dissipation per contact is significantly improved, enabling the 25 A rating.
Yes. Each contact carries one phase. Ensure the cable and connector current rating is not exceeded for the thruster motor's maximum drive current. Contact our team for cable assembly recommendations matched to your thruster spec.
