MCIL&MCBH 6 Pins Series | SubConn Compatible Micro Underwater Connector Set Male & Female Waterproof Gold Plated Stainless Steel Marine & ROV
MCIL&MCBH 6 Pins Series | SubConn Compatible Micro Underwater Connector Set Male & Female Waterproof Gold Plated Stainless Steel Marine & ROV
This micro circular subsea connector is a high-density, compact industrial waterproof connector with a small footprint for installation in confined spaces on underwater equipment. It is designed as a 1:1 compatible replacement for the SubConn® Micro Circular series, with matching mating profile, installation dimensions, and electrical specifications, so existing equipment structures do not need to be modified. The connector is designed for demanding marine conditions including immersion, high salt spray, and deep-sea pressure, providing reliable watertight sealing, seawater corrosion resistance, aging resistance, and stable long-term electrical transmission.
The standardized product range covers 2 to 8 contacts, with a unified rated voltage of 300 V and a rated current of 5 to 10 A per contact. Available configurations include bulkhead, in-line, right-angle, and pressure-rated dummy-plug connectors for underwater equipment mating, wall penetration and fixation, and unused-port sealing. Bulkhead connectors are supplied with color-coded or numbered PTFE leads to help prevent wiring errors and improve assembly standardization and efficiency.
Dedicated cables, locking sleeves, pressure-rated dummy plugs, and other accessories are available for different underwater systems and equipment. Matching cables can use flexible waterproof synthetic rubber or polyurethane (PUR) jackets. Locking sleeves are available in injection-molded polyoxymethylene (POM) with stainless steel retaining rings, or as one-piece stainless steel or titanium alloy designs, supporting different requirements for low weight, corrosion resistance, and deep-sea pressure.
Key Advantages
- 1:1 compatible with SubConn® Micro Circular for direct replacement without structural redesign
- Electrical and pressure performance comparable to the original imported product
- Shorter delivery time and better overall procurement cost
- Customization available for cable harnesses, direct molding to PUR cable, housing material, bulkhead thread specifications, and pressure certification testing at a specified depth
- Fast technical coordination and after-sales support
Applications
- Offshore oil and gas, renewable energy, and subsea systems
- Defense systems and equipment
- Ocean observation systems, equipment, and instrumentation solutions
- Remotely operated underwater vehicle (ROV) and remotely operated towed underwater vehicle (ROTV) systems
- Underwater camera, video, and lighting systems
- Seafloor seismic monitoring systems
- Diving equipment and systems
Optional Configurations
- Custom cable harnesses, including direct molding to the specified PUR cable
- Customer-specified cables, leads, and bulkhead thread specifications
- Customer-specified connector housing materials
- Pressure certification testing for a specified ocean depth
Subsea Micro Circular
Available in 2-, 3-, 4-, 5-, 6-, and 8-contact configurations.
Connector Technical Specifications
| Item | Specification |
|---|---|
| Rated voltage | 300 V AC/DC RMS |
| 2/3/4-contact rated current, 2.8 mm single-contact pin diameter | 10 A per contact, maximum 20 A |
| 5/6/8-contact rated current, 2.0 mm single-contact pin diameter | 5 A per contact, maximum 20 A |
| Insulation resistance | >200 MΩ |
| Contact resistance | <0.01 Ω |
| Wet-mate durability | >500 cycles with the mating face immersed in water |
| Operating temperature in water | -4 to 60°C (25 to 140°F) |
| Operating temperature in air | -40 to 60°C (-40 to 140°F) |
| Storage temperature | -40 to 60°C (-40 to 140°F) |
| Pressure test certification | 800 bar / 11,600 psi |
| PEEK version pressure rating | 300 bar / 4,350 psi |
| Thread size | 7/16-20UNF-2A |
Material Specifications
| Item | Material |
|---|---|
| Connector body | Neoprene rubber / polyether-type polyurethane (TPU) |
| Bulkhead housing | Copper, stainless steel, titanium alloy, anodized aluminum, or PEEK |
| PEEK bulkhead housing | PEEK-30 |
| 2/3/4/5/6/8-contact contacts | Gold-plated copper |
| Alignment pin | AISI 316 stainless steel |
| O-ring | Nitrile rubber |
| Locking sleeve | POM, titanium alloy, or stainless steel |
| Retaining ring | AISI 316 stainless steel |
Direct Cable Specifications, 3.3 ft (1.02 m)
- 2-, 3-, and 4-contact direct cable: 18 AWG, 0.81 mm² synthetic rubber
- 5-, 6-, and 8-contact direct cable: 20 AWG, 0.52 mm² synthetic rubber
Bulkhead Connector Lead Specifications, 1 ft (30 cm)
- 2-, 3-, and 4-contact bulkhead/PBOF lead: 18 AWG, 0.81 mm² white PTFE
- 5-, 6-, and 8-contact bulkhead/PBOF lead: 20 AWG, 0.52 mm² white PTFE
Direct Cable Color Code
1 Red, 2 Black, 3 Yellow, 4 Blue, 5 Orange, 6 Brown, 7 Purple, 8 Green.
3-contact cable sequence: 1 Red, 2 Black, 3 Yellow.
Male End Face View
Nominal Cable Outside Diameter, OD ±0.5 mm
- 2-contact cable: 0.283 in / 7.2 mm
- 3-contact cable: 0.295 in / 7.5 mm
- 4-contact cable: 0.334 in / 8.5 mm
- 5-contact cable: 0.315 in / 8.0 mm
- 6-contact cable: 0.334 in / 8.5 mm
- 8-contact cable: 0.374 in / 9.5 mm
Contact our engineering team with your required contact count, connector type, cable or lead specification, housing material, bulkhead thread, and target operating depth for compatibility confirmation and a technical quotation.
