Pluggable wet subsea stainless steel ROV connector Seacon underwater MCBHRA8M

MCBHRA8M Micro Circular Bulkhead Connector — Overview

The MCBHRA8M is an 8-contact Micro Circular bulkhead subsea connector, male (pins) face, wet-mateable and rated to 10 A per contact (50 A per connector) at 7,000 m working depth. It mounts through a standard 7/16-20 UNF-2A hull penetration and is supplied with colour-coded PTFE leads for direct splicing inside the housing.

8 Contacts 600 V AC/DC 10 A per Contact 7,000 m Depth 500+ Wet Matings IP68 / IP69 Right Angle

Key Design Features

• Wet-mateable: mate and demate in seawater; each contact carries its own moulded O-ring seal, so a single seal failure does not flood the connector.
• SubConn Compatible: identical face geometry, contact pitch and 7/16-20 UNF-2A thread, so it retrofits existing SubConn panels and harnesses without re-machining.
• Gold-plated contacts: brass UNS-C36000 contacts hold contact resistance below 0.01 Ω across the full 500-cycle life.
• 10 A per contact: rated current with a 50 A connector limit for the 8-contact shell.
• Pressure qualified: 1,400 bar mated design depth, 800 bar open face, so the face survives handling and storage unmated.
• 316L stainless steel body: matched to the housing material to avoid galvanic couples; brass, 316L stainless, titanium, anodised aluminium and PEEK are available across the range.
• Right-angle exit: routes the leads sideways behind the panel where vertical clearance is not available.

Technical Specifications

Materials

Leads & Termination

Mating & Compatibility

Typical Applications

Stainless-steel ROV and AUV builds, long-term immersion instruments, mixed-metal housings where brass should be avoided.

Notes for Selection

The 316L shell avoids galvanic couples on stainless and titanium housings. Face geometry is SubConn Compatible, matching the 8-pin right-angle bulkheads used across the industry.