MCBHRA6M 6-Pin Male Right-Angle Bulkhead Underwater Connector – Miniature Circular L-Type Series

Product Overview

The HYSF SUBSEA MCBHRA6M 6-Pin Male Right-Angle Bulkhead Underwater Connector is a compact subsea electrical connector designed for underwater equipment requiring reliable multi-channel electrical connections and space-efficient installation.Belonging to the HYSF Miniature Circular Right-Angle Connector Series, the MCBHRA6M features six male electrical contacts and an integrated 90-degree right-angle configuration.Unlike conventional straight bulkhead connectors, its right-angle design directs the internal cable leads sideways from the connector mounting interface. This helps reduce axial installation clearance and simplifies cable routing inside compact underwater housings.The six-pin configuration provides a practical electrical interface for power, signal, control, and instrumentation applications.The connector features a marine-grade 316L stainless steel housing, gold-plated electrical contacts, and an O-ring sealing arrangement designed for demanding subsea environments.The MCBHRA6M is designed for pressure applications up to 60 MPa (approximately 6,000 meters of seawater depth) and supports electrical ratings up to 550 V AC/DC according to the HYSF Miniature Right-Angle Series specifications.The standard bulkhead configuration includes approximately 0.3-meter internal wire leads, together with mounting hardware and sealing components.The MCBHRA6M is particularly suitable for ROVs, AUVs, underwater cameras, marine sensors, sonar systems, subsea junction boxes, and compact underwater electronic modules.

Key Features and Benefits

1. Six-Pin Male Electrical Configuration

The MCBHRA6M features six male electrical contact positions arranged in a compact miniature circular connector interface.Its six-pin configuration provides multiple electrical channels through a single bulkhead connection.Typical applications include:

• ROV power and control connections
• AUV sensor interfaces
• Underwater camera systems
• Marine instrumentation
• Pressure and temperature sensors
• Sonar and hydrophone systems
• Subsea data acquisition
• Multi-channel control systems
• Underwater monitoring equipment

The male contact pins are designed to mate with corresponding compatible six-pin female connectors.The six contacts provide flexibility for allocating power, signal, and control circuits according to the approved wiring diagram.

2. Integrated 90-Degree Right-Angle Design

One of the main advantages of the MCBHRA6M is its integrated 90-degree right-angle configuration.The design directs the internal cable leads sideways instead of extending straight behind the bulkhead mounting interface.This is particularly useful when conventional straight bulkhead connectors require excessive internal installation clearance.Key advantages include:

• Reduced axial installation clearance
• Improved internal cable routing
• Better integration in compact pressure housings
• Reduced interference with nearby components
• More organized cable management
• Greater flexibility in equipment layout

The right-angle configuration is especially beneficial for compact ROV frames, AUV pressure housings, underwater camera modules, and multi-port subsea junction boxes.

3. Six-Channel Electrical Connectivity

Six electrical contacts provide a practical connection interface for multiple power, signal, and control circuits.Depending on the approved electrical configuration, the contacts can be allocated to:

• Power supply
• Electrical return
• Sensor signals
• Control circuits
• Auxiliary power
• Instrumentation
• Communication channels

The six-pin configuration helps consolidate multiple electrical connections into one compact bulkhead interface.For communication applications, cable construction, shielding, impedance, and signal integrity should be verified against the intended transmission requirements.

4. 316L Stainless Steel Housing

The MCBHRA6M features a 316L stainless steel bulkhead housing designed for demanding marine environments.316L stainless steel provides corrosion resistance and mechanical strength for underwater equipment installations.Key benefits include:

• Marine-grade corrosion resistance
• Mechanical durability
• Stable bulkhead installation
• Suitability for subsea equipment
• Reliable structural support
• Long-term marine equipment integration

The housing material and surrounding equipment material should be considered together to minimize galvanic corrosion risks in seawater installations.

5. Gold-Plated Electrical Contacts

The MCBHRA6M features gold-plated electrical contacts.Gold plating provides a conductive contact surface and helps reduce oxidation at the electrical interface.The six male contact pins are designed to mate with corresponding female socket contacts while maintaining suitable electrical contact.The mating surfaces should be inspected before installation and kept clean to prevent contamination from affecting contact performance.Correct alignment during mating is important to protect the electrical contacts and maintain reliable connections.

6. Reliable Subsea Sealing Construction

The MCBHRA6M incorporates an O-ring sealing arrangement for underwater bulkhead installation.The sealing components help protect the electrical interface and equipment housing against water ingress when correctly installed.The standard bulkhead package includes the required mounting nut, washer, and O-ring.Proper installation and mating are essential to maintain the intended sealing performance.The sealing surfaces should be inspected before installation and kept free from dirt, debris, and mechanical damage.For deep-water applications, the complete installed and mated assembly should be verified against the specified hydrostatic pressure requirements.

7. IP68 Waterproof Protection and Deep-Sea Pressure Capability

The MCBHRA6M belongs to the HYSF Micro Watertight Connector Series, designed for demanding underwater applications.The series is engineered for pressure applications up to 60 MPa, corresponding to approximately 6,000 meters of seawater depth.Potential applications include:

• Deep-water ROV systems
• Autonomous underwater vehicles
• Oceanographic research instruments
• Subsea monitoring systems
• Marine scientific equipment
• Underwater imaging systems
• Offshore inspection equipment
• Deep-sea sensor networks

The actual operating depth depends on the complete connector assembly, mating component, cable construction, sealing arrangement, mounting surface, and installation conditions.For critical applications, the complete installed assembly should be verified through appropriate hydrostatic pressure testing and engineering qualification.

8. Compact Bulkhead Installation

The MCBHRA6M is designed for threaded bulkhead installation through an underwater equipment housing.Its right-angle configuration helps reduce internal axial clearance requirements and allows the cable leads to run sideways along the equipment housing.The standard mounting thread is 7/16-20 UNF.This mounting arrangement makes the connector suitable for compact ROV and AUV pressure housings, multi-port equipment panels, and subsea junction boxes.Always confirm the mounting dimensions and required installation clearance against the approved engineering drawing.

9. Standard 0.3-Meter Internal Cable Leads

The MCBHRA6M is supplied with approximately 0.3-meter internal cable leads in its standard bulkhead configuration.The leads provide an electrical connection between the external subsea connector interface and internal equipment electronics.Customized cable lengths and conductor arrangements can be evaluated according to project requirements.Available customization options include:

• Alternative cable lengths
• Customized cable specifications
• Different conductor arrangements
• Customized wire identification
• Alternative conductor sizes
• Specialized cable termination requirements
• Customized wiring assignments

The exact conductor colors and pin assignments should follow the approved MCBHRA6M production wiring diagram.

10. Electrical Performance

The HYSF Micro 2–8 Pin Right-Angle Series has a reference rated voltage of 550 V AC/DC.The technical catalog also specifies an insulation resistance of at least 200 MΩ under a 1000 V test condition.For the six-pin configuration, the applicable continuous current rating should be confirmed against the approved model-specific technical drawing.Actual electrical performance depends on conductor size, contact loading, operating temperature, cable construction, and installation conditions.

11. Designed for Compact Subsea Equipment

The MCBHRA6M is particularly useful in applications where conventional straight bulkhead connectors are difficult to install.Its 90-degree configuration helps direct internal cable leads away from nearby mechanical components and can improve the overall layout of compact equipment.Potential integration environments include:

• Micro-ROV electronics housings
• AUV sensor modules
• Compact subsea junction boxes
• Underwater camera assemblies
• Multi-port pressure housings
• Marine instrumentation packages
• Compact underwater robotic tools
• Subsea monitoring systems

The right-angle design helps simplify internal cable routing in installations where available space is limited.

12. Customization for OEM and Subsea Projects

Different underwater equipment manufacturers have different requirements for mounting dimensions, electrical wiring, and mechanical integration.HYSF SUBSEA supports customized connector configurations according to project specifications.Customization can include:

• Cable lead length
• Mounting thread specifications
• Housing materials
• Electrical configuration
• Contact assignment
• Wiring identification
• Cable specifications
• Specialized installation requirements

This flexibility makes the MCBHRA6M suitable for OEM equipment manufacturers, ROV developers, AUV manufacturers, marine research organizations, and subsea engineering companies.

MCBHRA6M Technical Specifications

Parameter	Specification
Brand	HYSF SUBSEA
Model	MCBHRA6M
SKU	HYSF-MCBHRA-6M
Product Type	6-Pin Male Right-Angle Bulkhead Connector
Connector Series	Miniature Circular L-Type
Number of Contacts	6 Pins
Contact Gender	Male
Installation Type	Bulkhead / Panel Mount
Cable Exit	90° Right-Angle
Housing Material	316L Stainless Steel
Contact Material	Gold-Plated Contacts
Sealing Structure	O-Ring Sealing
Mounting Thread	7/16-20 UNF
Standard Bulkhead Lead Length	Approximately 0.3 m
Rated Voltage	550 V AC/DC
Rated Current	Confirm against 6-pin technical drawing
Insulation Resistance	≥200 MΩ at 1000 V test condition
Waterproof Design	Subsea Watertight
Pressure Rating	Up to 60 MPa
Approximate Working Depth	Up to 6,000 Meters
Operating Temperature	-60°C to +80°C
Mating Cycles	≥500
Standard Accessories	Mounting Nut / Washer / O-Ring
Warranty	12 Months

Engineering Note: The specifications above follow the HYSF Micro 2–8 Pin Right-Angle Series technical catalog. Confirm the exact six-pin current rating, mounting dimensions, contact arrangement, and pressure qualification against the approved MCBHRA6M technical drawing before production or deployment.

Six-Pin Wiring and Contact Identification

The MCBHRA6M features six individual male electrical contact positions.The exact conductor colors and pin assignments should follow the approved MCBHRA6M production wiring diagram.Before cable assembly or equipment integration, engineers should verify:

1. The six contact positions.
2. The male connector mating-face orientation.
3. The corresponding conductor identification.
4. The pin-to-wire assignment.
5. The power, signal, and ground allocation.
6. Electrical continuity.
7. Insulation between individual contacts.

Customized wiring arrangements are available according to project requirements.Important: Do not assume that the standard MCBH6M straight-bulkhead connector wire colors automatically apply to MCBHRA6M. Always use the approved pin assignment drawing for production and installation.

Compatible Connectors and Accessories

MCBHRA6F – 6-Pin Female Right-Angle Bulkhead Connector

The MCBHRA6F is the corresponding female right-angle bulkhead connector in the HYSF Miniature Circular family.It features six female electrical contacts and a 90-degree configuration for compatible underwater equipment installations.The male and female right-angle bulkhead configurations provide corresponding electrical mating interfaces.

MCIL6F – 6-Pin Female Inline Underwater Connector

The MCIL6F is a six-pin female inline cable connector in the HYSF Micro Circular family.It can be considered for external cable connections with the MCBHRA6M, subject to verification of the exact mating interface and contact arrangement.

MCBH6F – 6-Pin Female Straight Bulkhead Connector

The MCBH6F is a conventional straight female bulkhead connector for compatible six-pin underwater connections.It can be considered for installations where a right-angle configuration is not required.

MCDC6F – 6-Pin Female Protective Dummy Plug

The MCDC6F is a female protective dummy connector designed for compatible six-pin male interfaces.It helps protect the exposed mating interface when the MCBHRA6M is not connected to its operational female connector.

Typical Applications of MCBHRA6M

1. Remotely Operated Vehicles (ROVs)

ROVs require multiple underwater electrical interfaces for cameras, sensors, manipulators, navigation systems, and communication equipment.The MCBHRA6M provides a six-pin male bulkhead interface with a right-angle configuration, helping simplify internal cable routing in compact vehicle housings.

2. Autonomous Underwater Vehicles (AUVs)

AUVs frequently incorporate multiple instruments, sensors, and electronic modules.The MCBHRA6M can be considered for suitable electrical interfaces where multi-channel connectivity and limited installation clearance are important.

3. Underwater Cameras and Imaging Systems

Underwater imaging systems may require multiple electrical circuits for power, control, lighting, and auxiliary functions.The six-pin configuration provides flexibility for appropriately designed camera and imaging assemblies.

4. Marine Sensors and Instrumentation

Marine monitoring equipment often combines multiple sensors and measurement circuits.The MCBHRA6M provides a compact six-pin bulkhead connection for suitable marine instrumentation and underwater data acquisition systems.

5. Sonar and Hydrophone Systems

Underwater acoustic systems frequently require multiple electrical channels for sensor connections and instrumentation.The MCBHRA6M can be considered for suitable sonar, hydrophone, and marine acoustic measurement assemblies.

6. Subsea Junction Boxes

Subsea junction boxes require reliable electrical interfaces for connecting cables, sensors, and communication equipment.The right-angle configuration helps improve internal cable routing and reduce interference with nearby components.

7. Offshore Energy and Subsea Control

Offshore equipment may require electrical connections for monitoring, instrumentation, and control systems.The MCBHRA6M provides a compact connector option for qualified subsea electrical assemblies.

8. Oceanographic Research Equipment

Scientific research equipment often operates in confined pressure housings with multiple sensor connections.The right-angle bulkhead configuration can help simplify internal cable routing around compact underwater instrument packages.

Installation Guidelines

Step 1: Verify Mounting Compatibility

Confirm that the equipment panel or pressure housing is designed for the MCBHRA6M mounting configuration.Verify the 7/16-20 UNF mounting thread and required installation dimensions against the approved drawing.

Step 2: Prepare the Mounting Surface

Ensure that the mounting surface is clean, flat, and free from burrs or damage.The sealing surface should meet the required engineering specifications.

Step 3: Inspect the Sealing Components

Check the O-ring and sealing surfaces for contamination, cuts, deformation, or other visible damage.

Step 4: Install the Bulkhead Connector

Position the MCBHRA6M according to the approved mounting orientation.Use the supplied mounting nut, washer, and O-ring according to the installation instructions.

Step 5: Route the Internal Leads

Position the right-angle cable exit according to the intended cable routing direction.Ensure that the leads do not experience excessive bending or mechanical strain.

Step 6: Verify the Wiring

Confirm all six conductor assignments using the approved wiring diagram.

Step 7: Connect the Mating Connector

Align the compatible female connector with the MCBHRA6M male contact interface.Avoid forcing the connector into an incorrect position.

Step 8: Perform Electrical and Pressure Checks

Verify electrical continuity, insulation resistance, and the complete assembly’s pressure qualification according to the application requirements.

Quality Control and Testing

Depending on the ordered configuration and project requirements, HYSF SUBSEA quality-control procedures may include:

• Visual inspection
• Dimensional verification
• Contact inspection
• Electrical continuity testing
• Insulation resistance measurement
• Contact resistance measurement
• Cable identification checks
• Mating compatibility verification
• Mechanical inspection
• Hydrostatic pressure testing
• Dielectric withstand testing where applicable

The applicable test procedures and acceptance criteria should be established according to the approved connector configuration and intended operating environment.

Frequently Asked Questions

Q1: What is the MCBHRA6M underwater connector?

The MCBHRA6M is a six-pin male right-angle bulkhead underwater electrical connector from the HYSF Miniature Circular L-Type Series.

Q2: What is the main advantage of the right-angle design?

Its 90-degree configuration directs the internal cable leads sideways from the bulkhead mounting interface, helping reduce axial installation clearance requirements.

Q3: How many electrical contacts does MCBHRA6M have?

The MCBHRA6M features six male electrical contacts.

Q4: What is the mounting thread?

The standard mounting thread for the Miniature Right-Angle Bulkhead Series is 7/16-20 UNF.

Q5: What is the standard bulkhead lead length?

The standard bulkhead lead length is approximately 0.3 meter.

Q6: What is the rated voltage?

The HYSF Micro 2–8 Pin Right-Angle Series has a reference voltage rating of 550 V AC/DC.

Q7: What is the rated current?

The applicable current rating should be confirmed against the approved six-pin technical drawing. It depends on the contact configuration and cable specifications.

Q8: What is the maximum working depth?

The MCBHRA6M belongs to the HYSF Micro Right-Angle series, designed for pressure applications up to 60 MPa, corresponding to approximately 6,000 meters of seawater depth.

Q9: What materials are used?

The standard bulkhead housing is manufactured from 316L stainless steel and features gold-plated electrical contacts.

Q10: Which connector mates with MCBHRA6M?

The MCBHRA6F is the corresponding female right-angle bulkhead model. Compatible six-pin female inline connectors can also be considered after verifying the mating interface.

Q11: Can the internal lead length be customized?

Yes. Customized lead lengths and cable configurations are available according to project requirements.

Q12: Is MCBHRA6M suitable for ROV applications?

Yes. Its six-pin configuration and compact right-angle design make it suitable for appropriately designed ROV power, control, and sensor interfaces.

Q13: What is the insulation resistance?

The HYSF Micro series specifies insulation resistance of at least 200 MΩ under a 1000 V test condition.

Q14: What is the expected mating life?

The HYSF Micro series technical catalog specifies at least 500 mating cycles.

Q15: What is the warranty period?

The standard HYSF SUBSEA product warranty is 12 months, subject to the applicable warranty terms.

Why Choose HYSF SUBSEA MCBHRA6M?

The HYSF SUBSEA MCBHRA6M 6-Pin Male Right-Angle Bulkhead Underwater Connector provides a compact electrical connection solution for demanding subsea applications.Its principal advantages include:

• Six-pin male bulkhead configuration
• Integrated 90-degree right-angle design
• Compact miniature circular construction
• 316L stainless steel housing
• Gold-plated electrical contacts
• O-ring sealing arrangement
• 7/16-20 UNF mounting thread
• Standard 0.3-meter bulkhead leads
• 550 V AC/DC series voltage rating
• 60 MPa pressure capability
• Design depth capability up to 6,000 meters
• Insulation resistance of at least 200 MΩ
• At least 500 mating cycles
• Standard mounting nut, washer, and O-ring
• Customized cable and mounting configurations
• 12-month product warranty

For ROV manufacturers, AUV developers, marine research organizations, and underwater equipment manufacturers, the MCBHRA6M provides a practical solution for integrating six electrical circuits into compact subsea housings.Its right-angle configuration is particularly beneficial for applications where internal installation clearance is limited and cable routing must be carefully controlled.The combination of stainless steel construction, gold-plated contacts, subsea sealing, and high-pressure capability makes the MCBHRA6M a versatile bulkhead connector option for appropriately designed underwater electrical assemblies.