4 Pin Micro Circular Subsea Pluggable Underwater Connector -- MCBH4 MCIL4 | IP68 | 7000m Depth

Shanghai Kabel Intelligence Technology Co., Ltd supplies 4-contact micro circular subsea connectors -- bulkhead (MCBH4) and in-line (MCIL4) -- for general-purpose ROV, AUV, and subsea instrument applications. The 4-contact format is the standard choice for simple power + data circuits where only 4 conductors are required. Rated to 7,000 m depth, IP68, SubConn® MCBH4/MCIL4 compatible.

Available Models -- 4 Contact

Technical Specifications

• Contact count: 4
• Depth rating: 7,000 m
• IP rating: IP68
• Voltage: 600 V AC/DC
• Current per contact: 10 A
• Shell: Hard-anodized aluminium / Titanium / Stainless steel option
• Insulator: PEEK
• Contacts: Gold-plated copper alloy
• Sealing: Dual O-ring per contact + face seal
• Hydrostatic test: 600 psig, certificate included
• Mating cycles: 500+
• Compatibility: SubConn MCBH4 / MCIL4

Typical 4-Pin Wiring Allocations

• 2 power (48 V DC + return) + RS-485 A + RS-485 B
• 3-phase motor supply (2 phases + Earth) + feedback signal
• Camera power + sync + video + ground
• 2 analog sensor outputs + 2 power contacts

Applications

• ROV thruster power connectors
• Subsea LED lighting assemblies
• Underwater pressure and depth sensors
• AUV single-axis propulsion connectors
• Offshore platform subsea valve actuators
• Oceanographic tidal energy monitoring sensors

For quotation and technical support:
Email: sales@rovcable.com
Website: www.rovconnector.com | www.rovcable.com
Address: No.100 Yezhuang Road, Fengxian District, Shanghai, China 201415

Frequently Asked Questions

Does MCBH4F mate with SubConn MCIL4M?

Yes. Shanghai Kabel MCBH4F mates directly with OEM SubConn MCIL4M -- identical contact geometry and thread dimensions.

What is the maximum power per connector for 4-pin?

At 10 A per contact and 600 V rating, the theoretical maximum is 4 x 10 A x 600 V. In practice for a 2-power-contact configuration (one + one return), maximum continuous power is 10 A x operating voltage (e.g. 240 W at 24 V DC).

Can I get a titanium shell version?

Yes. Titanium Grade 5 shell available on request for all 4-contact types. Lead time 2-3 weeks.

Applications

• ROV and AUV underwater vehicle systems requiring compact, reliable connectivity
• Subsea sensor instrumentation, oceanographic data acquisition platforms
• Underwater camera, video and LED lighting systems at varying depths
• Ocean bottom seismic systems and marine renewable energy installations
• Naval systems, diving equipment and offshore infrastructure monitoring

Customization Options

• Custom cable harness lengths, wire terminations and direct moulding services
• Alternative connector body materials: anodized aluminum, SS316, or titanium
• Certified hydrostatic pressure testing to customer-specified ocean depths
• Custom bulkhead thread lengths, O-ring configurations and locking sleeve options