MCBHRA2M 2-Pin Male Right-Angle Bulkhead Underwater Connector – Miniature Circular L-Type Series

Product Overview

The HYSF SUBSEA MCBHRA2M 2-Pin Male Right-Angle Bulkhead Underwater Connector is a compact subsea electrical connector designed for underwater equipment requiring reliable two-channel connectivity and space-efficient installation.Belonging to the HYSF Miniature Circular Right-Angle Connector Series, the MCBHRA2M features two 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.With a compact Ø15.7 mm body, the MCBHRA2M is particularly suitable for equipment where available installation space is limited.The connector features IP68 waterproof protection and pressure capability up to 60 MPa (approximately 6,000 meters of seawater depth).The standard bulkhead configuration uses a 316L stainless steel housing, gold-plated electrical contacts, and approximately 0.3-meter cable leads. Standard mounting accessories include a nut, washer, and O-ring.The MCBHRA2M is designed for ROVs, AUVs, underwater cameras, thruster systems, marine sensors, subsea junction boxes, and compact underwater electronic modules.

Key Features and Benefits

1. Two-Pin Male Electrical Configuration

The MCBHRA2M features two male electrical contact positions arranged in a compact miniature circular connector interface.Its two-pin configuration provides a practical electrical connection for applications requiring two independent electrical contacts.Typical applications include:

• DC power supply connections
• Positive and negative power circuits
• Underwater camera power
• ROV thruster connections
• AUV battery connections
• Marine sensor interfaces
• Two-wire analog signals
• Underwater lighting systems
• Subsea control circuits

The male contact pins are designed to mate with compatible two-pin female connectors.

2. Integrated 90-Degree Right-Angle Design

One of the main advantages of the MCBHRA2M 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 side panels, underwater camera pods, and subsea junction boxes.

3. Compact Ø15.7 mm Connector Body

The MCBHRA2M features a compact Ø15.7 mm connector body, making it suitable for equipment requiring multiple electrical interfaces within limited installation space.Its miniature circular construction helps equipment manufacturers integrate electrical connections into compact pressure housings and underwater electronic modules.The compact design is particularly useful for:

• Micro-ROV housings
• AUV sidewall connections
• Compact underwater cameras
• Multi-port subsea junction boxes
• Marine sensor assemblies
• Underwater robotic equipment

4. 316L Stainless Steel Housing

The standard MCBHRA2M bulkhead configuration features a 316L stainless steel 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

Alternative housing materials can be evaluated according to project requirements.

5. Gold-Plated Electrical Contacts

The MCBHRA2M features precision electrical contacts with gold-plated contact surfaces.Gold plating provides a conductive contact surface and helps reduce oxidation at the electrical interface.The two 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.

6. Reliable Subsea Sealing Construction

The MCBHRA2M incorporates a subsea sealing arrangement designed for demanding underwater applications.The standard bulkhead package includes an O-ring and the required mounting hardware.The sealing arrangement helps protect the electrical interface and equipment housing against water ingress when correctly installed and mated.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.

7. IP68 Waterproof Protection

The MCBHRA2M 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 Rating up to 6,000 Meters

The MCBHRA2M supports 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. Standard 7/16-20 UNF Bulkhead Mounting

The MCBHRA2M uses a 7/16-20 UNF mounting thread for bulkhead installation.This mounting configuration allows the connector to be integrated into suitable equipment panels and underwater pressure housings.The standard mounting package includes:

• Mounting nut
• Washer
• O-ring

Before installation, verify the panel thickness, mounting hole dimensions, thread engagement, and required installation clearance against the approved engineering drawing.

10. Standard 0.3-Meter Bulkhead Cable Leads

The MCBHRA2M 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 MCBHRA2M production wiring diagram.

11. 10A Per Contact Electrical Capability

The HYSF Micro 2–8 Pin series specifies a rated current of 10 A per contact and a rated voltage of 550 V AC/DC.The MCBHRA2M provides two electrical contact positions for appropriately designed power, signal, and control circuits.The published series insulation resistance specification is at least 200 MΩ under a 1000 V test condition.Actual electrical performance depends on conductor size, contact loading, operating temperature, cable construction, and installation conditions.

12. Designed for Compact ROV and AUV Equipment

The MCBHRA2M 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 side panels
• Compact subsea junction boxes
• Underwater camera assemblies
• ROV thruster connections
• 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.

13. Designed for Repeated Mating Operations

The MCBHRA2M belongs to the HYSF Miniature Circular connector family, which specifies at least 500 mating cycles.Proper alignment and careful handling during mating help protect the contact pins and sealing surfaces.Always inspect the connector before mating and avoid forcing incorrectly aligned connectors together.

14. 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 MCBHRA2M suitable for OEM equipment manufacturers, ROV developers, AUV manufacturers, marine research organizations, and subsea engineering companies.

MCBHRA2M Technical Specifications

Parameter	Specification
Brand	HYSF SUBSEA
Model	MCBHRA2M
SKU	HYSF-MCBHRA-2M
Product Type	2-Pin Male Right-Angle Bulkhead Connector
Connector Series	Miniature Circular L-Type
Number of Contacts	2 Pins
Contact Gender	Male
Installation Type	Bulkhead / Panel Mount
Cable Exit	90° Right-Angle
Body Diameter	Ø15.7 mm
Housing Material	316L Stainless Steel
Contact Material	Gold-Plated Electrical Contacts
Mounting Thread	7/16-20 UNF
Standard Bulkhead Lead Length	0.3 m
Standard Accessories	Nut / Washer / O-Ring
Rated Current	10 A per Pin
Rated Voltage	550 V AC/DC
Insulation Resistance	≥200 MΩ at 1000 V
Waterproof Rating	IP68
Pressure Rating	60 MPa
Approximate Working Depth	Up to 6,000 Meters
Operating Temperature	-60°C to +80°C
Mating Cycles	≥500
Warranty	12 Months

Engineering Note: Specifications are based on the HYSF Miniature 2–8 Pin Right-Angle series technical catalog and MCBHRA2M product information. Confirm the exact dimensions, materials, electrical ratings, and installation requirements against the approved engineering drawing before production or deployment.

Two-Pin Wiring and Contact Identification

The MCBHRA2M features two individual male electrical contact positions.The exact conductor colors and pin assignments should follow the approved MCBHRA2M production wiring diagram.Before cable assembly or equipment integration, engineers should verify:

1. The two contact positions.
2. The male connector mating-face orientation.
3. The corresponding conductor identification.
4. The pin-to-wire assignment.
5. The positive and negative power allocation, if used for DC power.
6. Electrical continuity.
7. Insulation between individual contacts.

Customized wiring arrangements are available according to project requirements.Important: Always use the approved MCBHRA2M production wiring diagram for final assembly and installation.

Compatible Connectors and Accessories

MCIL2F – 2-Pin Female Inline Underwater Connector

The MCIL2F is a two-pin female inline cable connector designed for compatible two-pin male underwater interfaces.It can be used with the MCBHRA2M in suitable underwater cable assemblies, subject to verification of the mating interface.

MCBHRA2F – 2-Pin Female Right-Angle Bulkhead Connector

The MCBHRA2F is the corresponding female right-angle bulkhead model in the HYSF Miniature Circular family.It features two female electrical contacts and a 90-degree configuration for compatible underwater equipment installations.

MCBH2F – 2-Pin Female Straight Bulkhead Connector

The MCBH2F is a conventional straight female bulkhead connector for compatible two-pin underwater connections.It can be considered for equipment installations where a right-angle configuration is not required, subject to mating-interface verification.

MCIL2M – 2-Pin Male Inline Underwater Connector

The MCIL2M is a two-pin male inline cable connector for compatible underwater cable assemblies.It can be considered for applications requiring a male cable-mounted connection.

MCDC2F – 2-Pin Female Protective Dummy Plug

The MCDC2F is a female protective dummy connector designed for compatible two-pin male interfaces.It helps protect the exposed mating interface when the MCBHRA2M is not connected to its operational female connector.

Typical Applications of MCBHRA2M

1. Remotely Operated Vehicles (ROVs)

ROVs require multiple underwater electrical interfaces for cameras, sensors, thrusters, navigation systems, and communication equipment.The MCBHRA2M provides a two-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, battery systems, and electronic modules.The MCBHRA2M can be considered for suitable two-wire electrical interfaces where limited installation clearance is important.

3. Underwater Cameras and Lighting Systems

Underwater imaging systems may require dedicated electrical connections for camera power and auxiliary lighting.The two-pin configuration provides a compact interface for appropriately designed power circuits.

4. ROV Thruster Connections

Compact ROV thruster systems often require electrical power connections within limited mechanical installation spaces.The right-angle configuration can help simplify internal cable routing around the vehicle frame and pressure housing.The electrical suitability must be verified against the thruster’s voltage, current, and conductor requirements.

5. Marine Sensors and Instrumentation

Marine monitoring equipment frequently uses two-wire power and signal configurations.The MCBHRA2M provides a compact two-pin bulkhead connection for suitable sensor and instrumentation applications.

6. Subsea Junction Boxes

Subsea junction boxes require reliable electrical interfaces for connecting cables, sensors, and auxiliary 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 MCBHRA2M provides a compact connector option for appropriately 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.

9. Underwater Robotic Systems

Underwater robotic systems frequently incorporate compact electrical interfaces for motors, sensors, actuators, and control electronics.The MCBHRA2M provides a practical two-pin bulkhead connection for suitable robotic equipment applications.

Installation Guidelines

Step 1: Verify Mounting Compatibility

Confirm that the equipment panel or pressure housing is designed for the MCBHRA2M 7/16-20 UNF mounting configuration.Verify the mounting hole dimensions, panel thickness, and required installation clearance 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 MCBHRA2M according to the approved mounting orientation.Use the supplied mounting nut and washer 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 both conductor assignments using the approved wiring diagram.

Step 7: Connect the Mating Connector

Align the compatible MCIL2F female connector with the MCBHRA2M 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 MCBHRA2M underwater connector?

The MCBHRA2M is a two-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 MCBHRA2M have?

The MCBHRA2M features two male electrical contacts.

Q4: What is the connector body diameter?

The nominal connector body diameter is approximately 15.7 mm.

Q5: What is the mounting thread?

The standard mounting thread is 7/16-20 UNF.

Q6: What is the rated current?

The HYSF Micro 2–8 Pin series specifies 10 A per contact.

Q7: What is the rated voltage?

The series rated voltage is 550 V AC/DC.

Q8: What is the waterproof rating?

The connector features an IP68 waterproof design.

Q9: What is the maximum working depth?

The MCBHRA2M is designed for pressure applications up to 60 MPa, corresponding to approximately 6,000 meters of seawater depth.

Q10: What is the standard bulkhead lead length?

The standard bulkhead lead length is approximately 0.3 meter.

Q11: What materials are used?

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

Q12: Which connector mates with MCBHRA2M?

The MCIL2F is the corresponding female inline cable connector for compatible mating. The MCBHRA2F is the corresponding female right-angle bulkhead model.

Q13: Can the bulkhead lead length be customized?

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

Q14: Is MCBHRA2M suitable for ROV applications?

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

Q15: How many mating cycles can it support?

The HYSF Micro 2–8 Pin series technical catalog specifies at least 500 mating cycles.

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 MCBHRA2M?

The HYSF SUBSEA MCBHRA2M 2-Pin Male Right-Angle Bulkhead Underwater Connector provides a compact electrical connection solution for demanding subsea applications.Its principal advantages include:

• Two-pin male bulkhead configuration
• Integrated 90-degree right-angle design
• Compact Ø15.7 mm body diameter
• Miniature circular construction
• 316L stainless steel housing
• Gold-plated electrical contacts
• Subsea sealing construction
• 7/16-20 UNF mounting thread
• Standard 0.3-meter bulkhead leads
• 10 A per contact rated current
• 550 V AC/DC rated voltage
• IP68 waterproof protection
• 60 MPa pressure capability
• Design depth capability up to 6,000 meters
• 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 MCBHRA2M provides a practical solution for integrating two 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 compact construction, precision electrical contacts, subsea sealing, and high-pressure capability makes the MCBHRA2M a practical bulkhead connector option for appropriately designed underwater electrical assemblies.