The MCIL8F is an 8-contact Micro Circular in-line subsea connector, female (sockets) face, wet-mateable and rated to 10 A per contact (50 A per connector) at 7,000 m working depth. It terminates a free cable and mates mid-run, with no panel or chassis mount required.
8 Contacts600 V AC/DC10 A per Contact7,000 m Depth500+ Wet MatingsIP68
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.
Moulded cable: factory-moulded strain relief, so there is no crimp joint to fail at the cable entry.
Technical Specifications
Parameter
Specification
Model
MCIL8F
Contact count
8 contacts
Gender
Female (sockets)
Mounting
In-Line (cable-to-cable)
Rated voltage
600 V DC/AC rms
Rated current
10 A per contact (max. 50 A per connector)
Contact resistance
< 0.01 Ω
Insulation resistance
> 200 MΩ
Operating depth
7,000 m (700 bar / 10,000 psi)
Design depth (mated)
1,400 bar / 20,300 psi (approx. 14,000 m)
Open face qualified
800 bar / 11,600 psi
PEEK body variant
300 bar / 4,350 psi
Operating temperature (water)
-4 °C to +60 °C (+25 to +140 °F)
Operating temperature (air)
-40 °C to +60 °C (-40 to +140 °F)
Storage temperature
-40 °C to +60 °C (-40 to +140 °F)
Wet mating cycles
> 500
Ingress protection
IP68
Coupling
7/16-20 UNF-2A threaded locking sleeve
Materials
Parameter
Specification
Connector body
Chloroprene rubber
Shell
Brass / 316L stainless steel (nickel-plated)
Contacts
Gold-plated brass UNS-C36000 (pins and sockets)
O-rings
Nitrile rubber
Locking sleeve
POM or stainless steel
Snap rings
Stainless steel AISI 302
Location pin
Stainless steel AISI 303
Cable & Termination
Parameter
Specification
Cable
2 ft (60 cm) moulded cable as standard; 5 m and custom lengths on request
SubConn Compatible — MCBH / MCIL / MCOM series; also interchangeable with SeaCon and Burton micro circular equivalents
Typical Applications
Complex sensor packages, camera plus signal sets, small ROV payload hubs, hydrophone arrays.
Notes for Selection
Eight-contact female in-line, the mating half for MCBH8M bulkheads and for MCIL8M cable splices.
Custom configurations available
Shell material (brass / 316L stainless steel / titanium / anodised aluminium / PEEK), thread and lead length, pin-out, cable length and hydrostatic test certificates can be specified to order. Send us your drawing or mating requirement for a quotation.