MCOM8M 8-Pin Male Micro Circular Overmould Connector

Product Overview

The HYSF SUBSEA MCOM8M 8-Pin Male Micro Circular Overmould Connector is a compact wet-mate underwater electrical cable connector designed for subsea equipment, ROV systems, AUV platforms, underwater instrumentation, and marine applications.Featuring eight male pin contacts and an integrated overmoulded cable termination, the MCOM8M provides a compact and reliable electrical connection solution for underwater equipment requiring multiple power, signal, and control circuits.Designed around the SubConn-compatible Micro Circular interface, the MCOM8M supports underwater mating and unmating with its corresponding compatible female connector. Its compact circular construction makes it suitable for subsea systems where installation space is limited.The connector body features chloroprene rubber construction, while the eight male electrical contacts use gold-plated beryllium copper. Nitrile O-ring sealing at the mating interface and the integrated overmoulded cable termination provide a practical connection solution for demanding underwater applications.The reference electrical specifications include a 300 V DC/AC RMS voltage rating, 5 A per contact, and a maximum total connector current of 20 A.The Micro Circular reference pressure specifications include 1,400 bar (20,300 psi) when mated and 800 bar (11,600 psi) when open-face. The connector series also supports more than 500 wet-mating cycles.The MCOM8M is particularly suitable for underwater instrument packages requiring multiple electrical connections within a compact cable-mounted connector.HYSF SUBSEA provides customized Micro Circular overmould connectors and underwater cable assemblies with different cable lengths, conductor configurations, wire colors, and termination requirements according to OEM project specifications.

Key Features and Benefits

1. Eight-Pin High-Density Electrical Configuration

The MCOM8M incorporates eight independent electrical contact positions within a compact Micro Circular connector interface.This eight-contact configuration allows multiple electrical circuits to be integrated into one underwater connector.Typical electrical applications include:

• Multiple sensor connections
• Power supply circuits
• Control signal transmission
• Communication interfaces
• Underwater camera connections
• Lighting system connections
• Navigation equipment
• Auxiliary instrumentation
• Subsea monitoring equipment
• Marine electronic systems

The eight-contact arrangement helps reduce the number of individual connectors required in compact subsea equipment.The reference current rating is 5 A per contact, with a maximum total connector current of 20 A.

2. SubConn-Compatible Micro Circular Interface

The MCOM8M is designed around a SubConn-compatible Micro Circular mating interface.Its compatible configuration is intended for subsea equipment manufacturers and system integrators requiring Micro Circular electrical connections or replacement cable assemblies.Key benefits include:

• SubConn-compatible Micro Circular interface
• Compact circular connector design
• Eight-contact arrangement
• Male pin contact configuration
• Compatible female mating connector
• Wet-mate connection capability
• Integrated overmoulded cable assembly
• Flexible OEM cable assembly options

Mechanical dimensions, contact arrangement, keying, and mating compatibility should be verified against the approved connector drawings.

3. Wet-Mate Underwater Connection

The MCOM8M belongs to the Micro Circular wet-mate connector category.The compatible male and female connector halves are designed for underwater connection and disconnection.This makes the connector suitable for subsea equipment requiring maintenance, replacement, and underwater intervention.Key benefits include:

• Underwater mating capability
• Underwater disconnection capability
• More than 500 reference wet-mating cycles
• Convenient subsea equipment maintenance
• Suitable for ROV-assisted intervention
• Flexible underwater equipment replacement
• Compact subsea electrical connection

The correct mating procedure and locking arrangement should be followed before deployment.

4. Male Pin Contact Configuration

The MCOM8M features eight male pin contacts.The reference male contact material is gold-plated beryllium copper.Gold plating provides a conductive mating surface and helps maintain stable electrical contact performance in underwater connector applications.The corresponding female mating connector uses gold-plated brass socket contacts in the reference Micro Circular configuration.Key contact specifications include:

• Number of Contacts: 8
• Contact Gender: Male Pin
• Contact Material: Gold-Plated Beryllium Copper
• Mating Contact: Gold-Plated Brass Female Socket
• Contact Resistance: Less than 0.01 Ω
• Insulation Resistance: Greater than 200 MΩ

5. 300 V Electrical Rating

The MCOM8M follows the 300 V DC/AC RMS reference voltage specification of the SubConn Micro Circular 8-contact series.This electrical rating makes the connector suitable for appropriately designed underwater power and signal circuits.The eight-contact arrangement allows multiple electrical circuits to share one compact underwater connection interface.Typical applications include:

• Sensor power supply
• Control signal transmission
• Underwater lighting
• Instrumentation connections
• Auxiliary power circuits
• Marine electronic systems
• Subsea communication equipment

6. 5 A Current Rating Per Contact

The reference current rating is 5 A per contact, with a maximum total connector current of 20 A per connector.This configuration supports multiple low-current power and signal circuits in compact underwater equipment.Typical applications include:

• Underwater sensors
• Measurement instruments
• Control circuits
• Camera power connections
• Lighting systems
• Auxiliary electronic equipment
• Marine monitoring devices

The allowable total current depends on simultaneous contact loading, cable specifications, thermal conditions, and the actual electrical configuration.

7. High Hydrostatic Pressure Qualification

The SubConn Micro Circular 8-contact reference specifications include:

• Mated Pressure Qualification: 1,400 bar / 20,300 psi
• Open-Face Pressure Qualification: 800 bar / 11,600 psi

These pressure qualification values make the Micro Circular connector series suitable for demanding subsea equipment designs.Actual operating depth and pressure capability depend on the complete connector assembly, cable termination, mating configuration, sealing system, and qualification conditions.The complete MCOM8M cable assembly should be evaluated against the intended subsea operating pressure.

8. More Than 500 Wet-Mating Cycles

The reference Micro Circular specification identifies more than 500 wet-mating cycles.This makes the connector suitable for underwater equipment requiring repeated connection and disconnection.Typical applications include:

• ROV equipment replacement
• Underwater sensor maintenance
• Subsea camera replacement
• Marine instrumentation servicing
• Underwater robotic systems
• Subsea monitoring equipment

Actual service life depends on operating conditions, mating procedures, contamination exposure, and maintenance.

9. Chloroprene Rubber Connector Body

The Micro Circular reference connector body features chloroprene rubber construction.This flexible elastomer material provides mechanical protection around the electrical contact interface and supports underwater sealing.Key characteristics include:

• Flexible rubber construction
• Marine environment suitability
• Mechanical protection
• Environmental sealing support
• Compact overmoulded connector design
• Suitable for subsea applications

10. Gold-Plated Male Electrical Contacts

The MCOM8M features eight male pin contacts using the Micro Circular reference contact material.The male contacts are made from gold-plated beryllium copper.The corresponding female mating connector uses gold-plated brass sockets.Gold-plated electrical contacts help provide:

• Stable electrical contact performance
• Low contact resistance
• Corrosion resistance
• Reliable signal transmission
• Consistent electrical connections

The reference contact resistance is less than 0.01 Ω.

11. Nitrile O-Ring Sealing System

The Micro Circular reference sealing system uses nitrile O-rings.These sealing components help prevent water ingress through the mating interface when the connector is correctly assembled and mated.Key characteristics include:

• Nitrile O-ring sealing
• Underwater mating interface protection
• Reliable sealing support
• Suitable for marine environments

The sealing components should be inspected regularly and replaced when damaged.

12. Integrated Overmoulded Cable Termination

The MCOM8M features an integrated overmoulded cable termination.The molded connector-to-cable transition provides additional mechanical protection around the cable entry point.Key benefits include:

• Integrated molded construction
• Mechanical cable entry protection
• Reduced exposure of the cable termination
• Compact cable assembly design
• Improved installation convenience
• Suitable for underwater cable assemblies

The reference Micro Circular 8-contact overmould lead configuration uses 22 AWG (0.33 mm²) colored PTFE insulated wires with a standard lead length of approximately 3 inches (7 cm).Customized cable lengths and cable configurations can be provided according to project requirements.

13. Wide Operating Temperature Range

The SubConn Micro Circular reference temperature specifications include:

• Water Temperature: -4°C to +60°C
• Air Temperature: -40°C to +60°C
• Storage Temperature: -40°C to +60°C

These temperature ranges support a variety of marine, underwater, and subsea equipment applications.

14. Customized Underwater Cable Assemblies

HYSF SUBSEA provides customized Micro Circular connectors and subsea cable assemblies for different equipment manufacturers.Customization options include:

• Cable length
• Cable outer diameter
• Conductor cross-section
• Wire color configuration
• Pin assignment
• Cable jacket material
• Cable termination
• Overmoulding design
• Electrical wiring configuration
• OEM cable assembly requirements

Customized cable assemblies can be manufactured according to customer wiring diagrams and installation requirements.

15. OEM and Project-Specific Manufacturing

HYSF SUBSEA specializes in manufacturing underwater electrical connectors, Micro Circular connectors, subsea cable assemblies, and customized overmoulded connector solutions.We support OEM manufacturers, underwater robotics companies, ROV integrators, marine engineering contractors, and subsea equipment manufacturers.Our engineering team can assist with connector selection, cable configuration, pin assignment, mechanical drawings, and customized underwater electrical connection solutions.

MCOM8M Technical Specifications

• Brand: HYSF SUBSEA
• Model: MCOM8M
• Connector Series: Micro Circular
• Product Type: Male Overmould Cable Connector
• Connector Configuration: 8-Pin
• Number of Contacts: 8
• Contact Gender: Male Pin
• Mating Type: Wet-Mate
• Connector Interface: SubConn-Compatible Micro Circular
• Rated Voltage: 300 V DC/AC RMS
• Rated Current: 5 A per Contact
• Maximum Total Current: 20 A per Connector
• Insulation Resistance: Greater than 200 MΩ
• Contact Resistance: Less than 0.01 Ω
• Mated Pressure Qualification: 1,400 bar / 20,300 psi
• Open-Face Pressure Qualification: 800 bar / 11,600 psi
• Wet-Mating Cycles: More than 500
• Water Temperature: -4°C to +60°C
• Air Temperature: -40°C to +60°C
• Storage Temperature: -40°C to +60°C
• Connector Body Material: Chloroprene Rubber
• Male Contact Material: Gold-Plated Beryllium Copper
• Female Mating Contact Material: Gold-Plated Brass UNS C36000
• O-Ring Material: Nitrile
• Locking Sleeve Options: ABS / Stainless Steel
• Snap Ring Material: Stainless Steel AISI 302
• Overmould Lead Wire: 22 AWG / 0.33 mm²
• Lead Wire Insulation: Colored PTFE
• Reference Overmould Lead Length: 3 inches / 7 cm
• Cable Length: Customized
• Pin Assignment: Customized According to Wiring Requirements
• Mating Connector: Compatible 8-Pin Female Micro Circular Connector

Typical Applications of MCOM8M

1. ROV Systems

The MCOM8M is suitable for remotely operated vehicle (ROV) systems requiring compact underwater electrical connections for sensors, cameras, lighting, and control equipment.Its eight-contact configuration provides multiple electrical circuits within one compact connector interface.

2. AUV Platforms

Autonomous underwater vehicles (AUVs) require compact electrical interfaces for onboard sensors, navigation equipment, and control systems.The MCOM8M can be integrated into compatible AUV electrical systems and underwater cable assemblies.

3. Underwater Camera Systems

Underwater camera equipment requires electrical connections for power, control, and auxiliary signals.The MCOM8M provides a compact overmoulded cable connector solution for compatible underwater imaging systems.

4. Subsea Sensors and Instrumentation

Subsea sensor packages often require multiple electrical circuits for measurement signals, sensor power, and control functions.The eight-contact configuration is suitable for compatible underwater instrumentation.

5. Underwater LED Lighting Systems

Underwater LED lighting systems may use compact circular connectors for power and control connections.The MCOM8M can be considered for compatible underwater lighting assemblies within its electrical ratings.

6. Marine Monitoring Equipment

Marine monitoring equipment uses underwater sensors and electronic modules to collect environmental and operational data.The MCOM8M provides a compact electrical connection option for compatible marine monitoring systems.

7. Underwater Robotics and Automation

Underwater robotic equipment requires reliable electrical interfaces for sensors, cameras, actuators, and control modules.The MCOM8M can be integrated into suitable underwater robotic cable assemblies.

8. Oceanographic Instruments

Oceanographic instruments often require multiple electrical connections for environmental sensors, measurement devices, and data acquisition systems.The MCOM8M provides a compact eight-contact connection interface for compatible marine research equipment.

9. Subsea Electronic Control Systems

Subsea control systems require compact electrical connectors for power distribution, signal transmission, and auxiliary control circuits.The MCOM8M supports multiple electrical circuits within one underwater connector.

10. Offshore Monitoring Equipment

Offshore monitoring systems use underwater instruments and electronic devices for subsea data collection.The MCOM8M can be used in compatible underwater cable assemblies and marine monitoring equipment.

Customization Options

HYSF SUBSEA provides customized Micro Circular overmould connectors and underwater cable assemblies according to project requirements.Available customization options include:

• 8-pin male connector configuration
• Customized cable lengths
• Customized cable outer diameter
• Customized conductor specifications
• Customized wire colors
• Customized pin assignments
• PTFE insulated lead wires
• Different cable jacket materials
• Customized overmoulding construction
• Customized electrical termination
• OEM cable assembly configurations
• Electrical continuity testing
• Insulation resistance testing
• Hydrostatic pressure testing

Customers can provide electrical wiring diagrams, cable specifications, installation drawings, and operating environment requirements for engineering evaluation.

Installation and Maintenance Guidelines

Step 1: Inspect the Connector

Inspect the connector body, male contact face, overmoulded cable termination, and sealing surfaces for visible damage or contamination.

Step 2: Inspect the Electrical Contacts

Check all eight male pin contacts for corrosion, deformation, contamination, or mechanical damage.

Step 3: Inspect the O-Rings

Check the mating connector’s nitrile O-rings for cuts, deformation, or contamination.Replace damaged sealing components before deployment.

Step 4: Clean the Mating Interface

Follow the approved wet-mate cleaning procedure.Ensure that the mating surfaces are free from debris and foreign materials.

Step 5: Verify Contact Configuration

Confirm the eight-contact arrangement and pin assignment against the approved electrical wiring diagram.

Step 6: Align the Connector Halves

Align the mechanical guide features and mating interface.Avoid forcing the connector halves together at an incorrect angle.

Step 7: Complete the Wet-Mate Connection

Follow the approved underwater mating procedure and ensure that the connector is fully engaged.

Step 8: Secure the Connector

Install and engage the specified locking arrangement where applicable.Verify that the connector is securely mated before deployment.

Step 9: Perform Electrical Testing

Check electrical continuity, contact resistance, and insulation resistance according to the applicable test requirements.

Step 10: Complete Pressure Qualification

Verify the complete connector and cable assembly against the required hydrostatic pressure qualification.

Step 11: Post-Deployment Maintenance

After recovery, rinse the connector with fresh water according to the approved maintenance procedure.Inspect the contacts and sealing components, and install protective caps when the connector is not in use.Important: Always follow the approved wet-mate procedure. Never force the connector or exceed its qualified operating pressure.

Quality Control and Testing

Depending on the approved product configuration and project requirements, quality-control procedures may include:

• Visual inspection
• Dimensional inspection
• Contact position verification
• Contact plating inspection
• Electrical continuity testing
• Contact resistance testing
• Insulation resistance testing
• Mating compatibility testing
• O-ring inspection
• Overmoulding appearance inspection
• Cable termination inspection
• Hydrostatic pressure testing
• Electrical performance verification after pressure testing

Electrical test reports, dimensional inspection reports, and hydrostatic pressure test documentation can be provided according to agreed project requirements.

Frequently Asked Questions

Q1: What is the MCOM8M connector?

The MCOM8M is an 8-contact male Micro Circular overmould underwater connector designed for subsea electrical cable assemblies and marine equipment.

Q2: How many pins does the MCOM8M have?

The MCOM8M features eight male pin contacts.

Q3: Is the MCOM8M male or female?

The MCOM8M is a male connector with eight male pin contacts.

Q4: Is the MCOM8M wet-mate or dry-mate?

The MCOM8M belongs to the Micro Circular wet-mate connector series and is designed for underwater connection and disconnection with its compatible female connector.

Q5: Is the MCOM8M compatible with SubConn Micro Circular connectors?

The MCOM8M is designed around a SubConn-compatible Micro Circular interface. Confirm the mechanical dimensions, contact arrangement, and mating details against the approved drawings before interchangeability is specified.

Q6: What is the voltage rating?

The reference voltage rating is 300 V DC/AC RMS.

Q7: What is the current rating?

The reference current rating is 5 A per contact, with a maximum total connector current of 20 A.

Q8: What is the pressure rating?

The Micro Circular reference pressure qualification is 1,400 bar (20,300 psi) when mated and 800 bar (11,600 psi) open-face.

Q9: How many mating cycles does the connector support?

The reference specification identifies more than 500 wet-mating cycles.

Q10: What is the operating temperature range?

The reference water temperature range is -4°C to +60°C. The air and storage temperature range is -40°C to +60°C.

Q11: What materials are used?

The reference configuration uses a chloroprene rubber connector body, gold-plated beryllium copper male contacts, gold-plated brass female mating sockets, and nitrile O-ring seals.

Q12: What cable specifications are available?

The reference overmould lead configuration uses 22 AWG (0.33 mm²) colored PTFE insulated wires with approximately 3 inches (7 cm) of lead length.Customized cable lengths and cable configurations can also be provided.

Q13: Can the cable length be customized?

Yes. HYSF SUBSEA provides customized cable assemblies according to equipment installation and project requirements.

Q14: Can the pin assignment be customized?

Yes. The electrical wiring configuration and pin assignment can be arranged according to the customer’s approved wiring diagram.

Q15: Is the MCOM8M suitable for ROV applications?

Yes. It is suitable for compatible ROV sensor packages, camera systems, lighting equipment, and subsea instrumentation.

Q16: Can hydrostatic pressure test reports be supplied?

Hydrostatic pressure testing and corresponding test documentation can be arranged according to agreed project requirements.

Why Choose HYSF SUBSEA MCOM8M?

The HYSF SUBSEA MCOM8M 8-Pin Male Micro Circular Overmould Connector provides a compact and practical electrical connection solution for demanding underwater and subsea applications.Its principal features include:

• SubConn-compatible Micro Circular interface
• Eight male pin contacts
• 300 V DC/AC RMS reference voltage
• 5 A per contact reference current
• 20 A maximum total connector current
• 1,400 bar mated pressure qualification
• 800 bar open-face pressure qualification
• More than 500 wet-mating cycles
• Chloroprene rubber connector body
• Gold-plated beryllium copper male contacts
• Nitrile O-ring sealing
• 22 AWG / 0.33 mm² PTFE overmould lead wires
• Compact integrated overmoulded construction
• Customized underwater cable assemblies
• OEM manufacturing and engineering support

For ROV manufacturers, AUV developers, underwater robotics companies, marine engineering contractors, and subsea equipment manufacturers, the MCOM8M provides a compact eight-contact Micro Circular electrical interface for underwater power, signal, and instrumentation connections.Contact HYSF SUBSEA for technical drawings, product specifications, customized cable assemblies, and quotations for the MCOM8M 8-pin male Micro Circular overmould connector.