MCBHRA8M 8-Pin Male Right-Angle Bulkhead Underwater Connector – Miniature Circular L-Type Series
Product Overview
The
HYSF SUBSEA MCBHRA8M 8-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 MCBHRA8M features eight male electrical contacts and an integrated 90-degree right-angle cable exit.Unlike conventional straight bulkhead connectors, its right-angle configuration directs the cable sideways from the connector mounting interface. This design helps reduce internal axial clearance requirements and simplifies cable routing inside compact underwater housings.The eight-pin configuration provides a high-density electrical interface for power, signal, control, and data transmission applications.The connector features a 316L stainless steel housing, gold-plated brass electrical contacts, and a dual O-ring plus face-seal construction.Designed for demanding subsea environments, the MCBHRA8M provides IP68 waterproof protection and pressure capability up to
60 MPa (approximately 6,000 meters of seawater depth).Its compact Ø15.7 mm body and approximately 33.5 mm overall height make it suitable for equipment where installation space is limited.The MCBHRA8M is particularly suitable for ROVs, AUVs, underwater cameras, Gigabit Ethernet systems, subsea junction boxes, marine sensor networks, and compact underwater electronic modules.
Key Features and Benefits
1. Eight-Pin Male Electrical Configuration
The MCBHRA8M features eight male electrical contact positions arranged in a compact miniature circular connector interface.Its eight-pin configuration provides multiple electrical channels through a single bulkhead connection.Typical applications include:
- ROV control and instrumentation
- AUV communication systems
- Underwater cameras
- Gigabit Ethernet interfaces
- Marine sensor networks
- Sonar and hydrophone systems
- Subsea data acquisition
- Multi-channel control systems
- Underwater monitoring equipment
The eight contacts provide flexibility for allocating power, signal, communication, and control circuits according to the approved wiring diagram.
2. Integrated 90-Degree Right-Angle Design
One of the main advantages of the MCBHRA8M is its integrated right-angle configuration.The 90-degree cable exit directs the cable 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 design is especially beneficial for compact ROV frames, AUV pressure housings, underwater camera modules, and multi-port subsea junction boxes.
3. High-Density Eight-Channel Connectivity
Eight electrical contacts provide substantial connection capacity within a compact bulkhead interface.Depending on the approved electrical configuration, the contacts can be allocated to:
- Power supply
- Electrical return
- Ethernet signal pairs
- Sensor signals
- Control circuits
- Auxiliary power
- Instrumentation
- Communication channels
The eight-pin configuration is particularly useful for systems requiring multiple electrical circuits through a single underwater interface.For Ethernet applications, the cable construction, shielding, impedance, pair allocation, and signal integrity must be verified against the required transmission speed.
4. 316L Stainless Steel Housing
The MCBHRA8M features a 316L stainless steel connector 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 mounting
- Suitability for subsea equipment
- Reliable structural support for the connector assembly
The stainless steel construction makes the MCBHRA8M suitable for marine instrumentation, ROV housings, AUV pressure vessels, and subsea electrical enclosures.
5. Gold-Plated Brass Electrical Contacts
The MCBHRA8M features gold-plated brass electrical contacts.Gold plating provides a conductive contact surface and helps reduce oxidation at the electrical interface.The eight 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. Dual O-Ring and Face-Seal Construction
The MCBHRA8M incorporates a dual O-ring and face-seal arrangement.This sealing configuration supports reliable waterproofing at the connector interface and bulkhead mounting area.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
The MCBHRA8M features IP68 waterproof protection for demanding underwater applications.Its precision housing, sealing arrangement, and electrical contact assembly are designed for subsea installation.For critical underwater systems, the complete connector and equipment assembly should be qualified according to the intended operating depth and installation conditions.
8. Deep-Sea Pressure Capability up to 6,000 Meters
The MCBHRA8M is designed for underwater applications at pressures of up to
60 MPa, corresponding to approximately 6,000 meters of seawater depth.This makes it suitable for consideration in demanding deep-sea electrical systems.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.
9. Compact Bulkhead Installation
The MCBHRA8M is designed for bulkhead installation through an underwater equipment housing.Its compact Ø15.7 mm body and approximately 33.5 mm overall height help reduce installation space requirements.The M16 mounting configuration and anti-rotation locking ring provide a practical mounting arrangement for suitable equipment panels and pressure housings.The right-angle structure is particularly beneficial when internal clearance is limited or when cables need to run parallel to the equipment housing.
10. Eight-Color PTFE Lead Configuration
The MCBHRA8M features an eight-conductor cable lead configuration with color identification.The listed conductor colors are:
- Red
- Black
- White
- Blue
- Yellow
- Green
- Orange
- Brown
PTFE insulation provides electrical insulation and thermal stability for demanding equipment applications.The conductor assignments should follow the approved MCBHRA8M wiring diagram.Customized cable lengths and conductor configurations can be evaluated according to project requirements.
11. Ethernet and Multi-Sensor Integration
The eight-pin interface is suitable for appropriately designed multi-channel electrical systems.For Ethernet applications, four differential pairs can be allocated across eight contacts, subject to suitable cable construction and signal-integrity verification.Potential applications include:
- ROV Ethernet communication
- Underwater IP cameras
- AUV communication modules
- Subsea Ethernet switches
- Multi-sensor data acquisition
- Underwater control networks
Actual Gigabit Ethernet performance depends on the complete transmission system, including cable characteristics, shielding, contact arrangement, impedance matching, and connector installation.
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 dimensions
- Housing materials
- Electrical configuration
- Contact assignment
- Wiring identification
- Cable specifications
- Specialized installation requirements
This flexibility makes the MCBHRA8M suitable for OEM equipment manufacturers, ROV developers, AUV manufacturers, marine research organizations, and subsea engineering companies.
MCBHRA8M Technical Specifications
| Parameter | Specification |
|---|
| Brand | HYSF SUBSEA |
| Model | MCBHRA8M |
| SKU | HYSF-MCBHRA-8M |
| Product Type | 8-Pin Male Right-Angle Bulkhead Connector |
| Connector Series | Miniature Circular L-Type |
| Number of Contacts | 8 Pins |
| Contact Gender | Male |
| Installation Type | Bulkhead / Panel Mount |
| Cable Exit | 90° Right-Angle |
| Housing Material | 316L Stainless Steel |
| Contact Material | Gold-Plated Brass |
| Sealing Structure | Dual O-Ring + Face Seal |
| Body Diameter | Ø15.7 mm |
| Overall Height | Approximately 33.5 mm |
| Mounting Thread | M16 |
| Anti-Rotation Feature | Locking Ring |
| Lead Configuration | 8-Color PTFE Leads |
| Rated Current | 10 A per Pin |
| Rated Voltage | 600 V AC/DC |
| Waterproof Rating | IP68 |
| Pressure Rating | Up to 60 MPa |
| Approximate Working Depth | Up to 6,000 Meters |
| Operating Temperature | -20°C to +80°C |
| Warranty | 12 Months |
Engineering Note: Confirm the actual mounting thread details, lead length, pin assignments, electrical ratings, and pressure qualification against the approved MCBHRA8M technical drawing before production or deployment.
Eight-Pin Wiring and Conductor Identification
The MCBHRA8M features eight individual male electrical contact positions.The listed conductor identification is:
| Pin | Wire Color |
|---|
| Pin 1 | Red |
| Pin 2 | Black |
| Pin 3 | White |
| Pin 4 | Blue |
| Pin 5 | Yellow |
| Pin 6 | Green |
| Pin 7 | Orange |
| Pin 8 | Brown |
Before cable assembly or equipment integration, engineers should verify:
- The eight contact positions.
- The male connector mating-face orientation.
- The corresponding conductor identification.
- The pin-to-wire assignment.
- The power, signal, and ground allocation.
- Electrical continuity.
- Insulation between individual contacts.
Customized wiring arrangements are available according to project requirements.
Important: Always use the approved MCBHRA8M production wiring diagram for final assembly and installation.
Compatible Connectors and Accessories
MCBHRA8F – 8-Pin Female Right-Angle Bulkhead Connector
The
MCBHRA8F is the corresponding female right-angle bulkhead connector in the HYSF Miniature Circular family.It provides an eight-contact female bulkhead interface for compatible underwater equipment installations.The male and female right-angle bulkhead configurations can be selected according to the required equipment-side connection arrangement.
MCBH8F – 8-Pin Female Straight Bulkhead Connector
The MCBH8F is a conventional straight female bulkhead connector for compatible eight-pin underwater connections.It can be considered for installations where the right-angle cable exit is not required.
MCIL8F – 8-Pin Female Inline Connector
The MCIL8F is an eight-pin female inline cable connector.It can be considered for compatible cable-to-bulkhead connections, subject to verification of the contact arrangement and mating dimensions.
MCDC8F – 8-Pin Female Protective Dummy Plug
The MCDC8F is a female protective dummy connector designed for compatible eight-pin male interfaces.It helps protect the exposed mating interface when the MCBHRA8M is not connected to its operational female connector.
Typical Applications of MCBHRA8M
1. Remotely Operated Vehicles (ROVs)
ROVs require multiple underwater electrical interfaces for cameras, sensors, manipulators, navigation systems, and communication equipment.The MCBHRA8M provides an eight-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 MCBHRA8M can be considered for suitable electrical interfaces where high contact density 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 data communication.The eight-pin configuration provides flexibility for appropriately designed camera and imaging assemblies.
4. Gigabit Ethernet Systems
The eight-pin contact arrangement can support four differential signal pairs in a suitable Ethernet interface.The MCBHRA8M can be considered for underwater Ethernet communication systems, including IP cameras, ROV communication modules, and subsea network equipment.Actual Gigabit Ethernet performance must be verified using the complete cable and transmission system.
5. Marine Sensors and Instrumentation
Marine monitoring equipment often combines multiple sensors and measurement circuits.The MCBHRA8M provides a compact eight-pin bulkhead connection for suitable marine instrumentation and underwater data acquisition systems.
6. Sonar and Hydrophone Systems
Underwater acoustic systems frequently require multiple electrical channels for sensor connections and instrumentation.The MCBHRA8M can be considered for suitable sonar, hydrophone, and marine acoustic measurement assemblies.
7. 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.
8. Offshore Energy and Subsea Control
Offshore equipment may require electrical connections for monitoring, instrumentation, and control systems.The MCBHRA8M provides a compact connector option for qualified subsea electrical assemblies.
9. 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 MCBHRA8M mounting configuration.Verify the M16 mounting arrangement 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 dual O-rings and face-seal surfaces for contamination, cuts, deformation, or other visible damage.
Step 4: Install the Bulkhead Connector
Position the MCBHRA8M according to the approved mounting orientation.Use the specified locking and anti-rotation arrangement.
Step 5: Route the Internal Cable
Position the right-angle cable exit according to the intended cable routing direction.Ensure that the cable does not experience excessive bending or mechanical strain.
Step 6: Verify the Wiring
Confirm all eight conductor assignments using the approved wiring diagram.
Step 7: Connect the Mating Connector
Align the compatible female connector with the MCBHRA8M 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 MCBHRA8M underwater connector?
The MCBHRA8M is an eight-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 cable sideways from the bulkhead mounting interface, helping reduce internal axial clearance requirements.
Q3: How many electrical contacts does MCBHRA8M have?
The MCBHRA8M features eight male electrical contacts.
Q4: What is the waterproof rating?
The connector features an IP68 waterproof design.
Q5: What is the maximum working depth?
The MCBHRA8M is designed for pressure applications up to 60 MPa, corresponding to approximately 6,000 meters of seawater depth.
Q6: What is the connector body diameter?
The nominal connector body diameter is approximately 15.7 mm.
Q7: What is the overall height?
The approximate overall height is 33.5 mm.
Q8: What is the mounting thread?
The product specification lists an M16 mounting configuration with an anti-rotation locking ring.
Q9: What is the rated current?
The listed rated current is 10 A per contact.
Q10: What is the rated voltage?
The listed rated voltage is 600 V AC/DC.
Q11: What materials are used?
The connector features a 316L stainless steel housing and gold-plated brass electrical contacts.
Q12: What sealing structure is used?
The MCBHRA8M uses a dual O-ring and face-seal construction.
Q13: Can MCBHRA8M support Gigabit Ethernet?
The eight-contact arrangement can accommodate four differential pairs. Actual Gigabit Ethernet performance depends on the cable construction, shielding, impedance, and signal integrity of the complete system.
Q14: Which connector mates with MCBHRA8M?
The MCBHRA8M is designed for compatible eight-pin female mating interfaces. MCIL8F and MCBH8F are potential mating options, subject to verification of the exact mechanical and electrical interface.
Q15: Can the lead length be customized?
Yes. Customized lead lengths and electrical configurations can be evaluated according to project requirements.
Q16: What is the warranty period?
The standard HYSF SUBSEA product warranty is 12 months, subject to the applicable warranty terms.
Why Choose HYSF SUBSEA MCBHRA8M?
The
HYSF SUBSEA MCBHRA8M 8-Pin Male Right-Angle Bulkhead Underwater Connector provides a compact, high-density electrical connection solution for demanding subsea applications.Its principal advantages include:
- Eight-pin male bulkhead configuration
- Integrated 90-degree right-angle design
- Compact Ø15.7 mm body diameter
- Approximately 33.5 mm overall height
- 316L stainless steel housing
- Gold-plated brass electrical contacts
- Dual O-ring and face-seal construction
- M16 mounting configuration
- Anti-rotation locking ring
- Eight-color PTFE-insulated leads
- 10 A rated current per contact
- 600 V AC/DC rated voltage
- IP68 waterproof construction
- 60 MPa pressure capability
- Design depth capability up to 6,000 meters
- Customized mounting and cable configurations
- 12-month product warranty
For ROV manufacturers, AUV developers, marine research organizations, and underwater equipment manufacturers, the MCBHRA8M provides a practical solution for integrating eight 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, dual sealing, and high-pressure capability makes the MCBHRA8M a versatile bulkhead connector option for appropriately designed underwater electrical assemblies.
