BH10M 10-Pin Male Bulkhead Underwater Connector – SubConn Compatible

Product Overview

The HYSF SUBSEA BH10M is a high-performance 10-pin male bulkhead underwater connector designed for reliable electrical connections through subsea pressure housings, underwater equipment enclosures, and marine instrument panels.As part of the HYSF Standard Circular Series, the BH10M features ten gold-plated male electrical contacts, a corrosion-resistant 316L stainless steel housing, and a precision-engineered watertight sealing system.Designed for operating depths of up to 6,000 meters (60 MPa), the BH10M provides a dependable electrical interface between internal equipment electronics and external underwater cable assemblies.The connector supports an electrical rating of 550V AC/DC and 10A per contact, making it suitable for multi-channel signal transmission, electrical control circuits, underwater instrumentation, and appropriate power distribution applications.The standard BH10M configuration includes approximately 0.3 meters of internal wire leads and a 5/8-18 UNF-2A mounting thread for installation in compatible underwater equipment housings.The BH10M is designed to mate with the IL10F 10-pin female inline underwater connector and is compatible with corresponding SubConn and SEACON Standard Circular connector interfaces.Typical applications include remotely operated vehicles (ROVs), autonomous underwater vehicles (AUVs), underwater cameras, subsea sensors, oceanographic instruments, offshore monitoring systems, and deep-sea research equipment.

Key Features and Benefits

1. Ten Gold-Plated Male Electrical Contacts

The BH10M incorporates ten precision-manufactured male electrical contacts within a compact circular connector interface.Its ten-contact design allows multiple electrical circuits to pass through a single bulkhead installation point.This configuration is suitable for applications involving:

• Multiple underwater sensor channels
• Electrical control signals
• Marine instrumentation
• Auxiliary power connections
• Subsea monitoring equipment
• Multi-core cable assemblies
• Underwater electronic modules

Gold-plated contact surfaces help maintain reliable conductivity and reduce contact-surface oxidation.The male contact arrangement is designed to mate securely with the corresponding IL10F female inline connector.

2. Marine-Grade 316L Stainless Steel Housing

The standard BH10M features a precision-machined 316L stainless steel housing designed for demanding seawater environments.316L stainless steel provides several advantages:

• Good resistance to marine corrosion
• High mechanical strength
• Durability under hydrostatic pressure
• Reliable threaded mounting
• Dimensional stability
• Suitability for long-term underwater equipment integration

The metal housing provides mechanical support for the electrical contact assembly and allows secure installation through compatible equipment enclosure walls.When the BH10M is installed in an aluminum housing, galvanic corrosion protection should be considered during equipment design.

3. Designed for 6,000-Meter Water Depth

The BH10M is designed to withstand external hydrostatic pressures of up to 60 MPa, equivalent to approximately 6,000 meters of seawater depth.Its watertight construction is intended to maintain electrical isolation between the external marine environment and internal equipment electronics.This deep-water capability makes the connector suitable for applications such as:

• Deep-sea scientific research
• Underwater robotic vehicles
• Offshore inspection systems
• Oceanographic monitoring equipment
• Marine exploration platforms
• Subsea electronic enclosures

The pressure performance of the complete installation depends on correct housing dimensions, sealing components, and assembly procedures.

4. SubConn and SEACON Compatible Interface

The HYSF BH10M is designed for mating compatibility with corresponding SubConn and SEACON Standard Circular underwater connector configurations.This compatibility makes it suitable for:

• Replacement underwater bulkhead connectors
• Subsea equipment maintenance
• Marine instrumentation upgrades
• New underwater electrical systems
• OEM equipment integration
• Standardized subsea connector interfaces

Before replacing an existing connector, the exact connector series, contact arrangement, mating gender, and mechanical dimensions should be verified.

5. Wet-Mateable Underwater Connection

The BH10M belongs to HYSF SUBSEA’s wet-mateable Standard Circular connector family.When paired with the corresponding IL10F female inline connector, the mating interface is designed to support connection and disconnection in underwater environments.This capability is useful for underwater equipment requiring periodic servicing, cable replacement, and modular system integration.Important: Electrical power should normally be disconnected before mating or unmating unless the complete connector assembly has been specifically qualified for energized operation.

6. Precision 5/8-18 UNF-2A Mounting Thread

The BH10M features a 5/8-18 UNF-2A mounting thread for secure installation through compatible underwater equipment housings.The standard mounting configuration includes:

• Mounting Thread: 5/8-18 UNF-2A
• Nominal Thread Length: 19 mm
• Installation Type: Threaded Bulkhead
• Standard Housing Material: 316Lステンレス鋼

The threaded construction allows the connector to be mechanically secured to a suitable enclosure wall.Before machining the equipment housing, the mounting hole dimensions, wall thickness, sealing surface, and installation clearance should be confirmed using the applicable technical drawing.

7. Watertight O-Ring Sealing System

The BH10M incorporates an O-ring bulkhead sealing arrangement designed to prevent seawater ingress through the connector mounting interface.The O-ring provides a sealing barrier between the connector housing and the equipment panel.Proper sealing performance depends on:

• Correct O-ring dimensions
• Suitable sealing materials
• Proper mounting groove geometry
• Clean sealing surfaces
• Appropriate O-ring compression
• Correct installation procedures

Custom sealing configurations may be considered according to project requirements.The complete housing and connector installation should be validated for the intended operating pressure.

8. Standard 0.3-Meter Internal Wire Leads

The BH10M is normally supplied with approximately 0.3 meters of internal wire leads.These leads allow the bulkhead connector to be electrically connected to internal equipment electronics, terminal blocks, or suitable wiring assemblies.The standard pigtail arrangement simplifies integration into underwater pressure vessels, sensor enclosures, and electronic control modules.Available customization options may include:

• Longer internal wire leads
• Alternative conductor specifications
• Customized pin assignments
• Numbered wire identification
• Specialized terminations
• OEM bulkhead assemblies

Actual pin-to-wire assignments should be confirmed using the supplied wiring diagram.

9. Optional Anodized Aluminum Housing

In addition to the standard 316L stainless steel construction, the BH10M may be supplied with an anodized aluminum housing.Anodized aluminum can be useful for applications where reduced equipment weight or compatibility with aluminum pressure housings is important.Material selection should consider:

• Operating depth
• Mechanical strength
• Equipment weight
• Corrosion protection
• Housing compatibility
• Surface treatment
• Long-term seawater exposure

Customized housing materials and sealing configurations are subject to engineering review.

BH10M Technical Specifications

パラメータ	仕様
Brand	HYSF SUBSEA
Model	BH10M
製品シリーズ	Standard Circular
コネクター・タイプ	バルクヘッドレセプタクル
コンタクト数	10
Contact Gender	Male
Contact Finish	Gold-Plated
Standard Housing Material	316Lステンレス鋼
Optional Housing Material	Anodized Aluminum
Mounting Style	Threaded Bulkhead
取付ネジ	5/8-18 UNF-2A
Nominal Thread Length	19 mm
Rated Voltage	550V AC/DC
Rated Current	10A per Contact
Maximum Operating Depth	6,000 m
Pressure Rating	60 MPa
Mating Capability	Wet-Mateable
Standard Internal Wire Length	0.3 m
Custom Wire Lengths	Available
Sealing System	O-Ring Sealing
Mating Inline Connector	IL10F
Protective Dummy Connector	DC10F
SubConn Compatibility	Corresponding Standard Circular Interfaces
SEACON Compatibility	Corresponding Standard Circular Interfaces
Warranty	12 Months

Note: Customized housing materials, thread lengths, and sealing configurations may require different mechanical dimensions. Always verify the approved technical drawing before machining the equipment housing.

Standard 10-Pin Wiring Reference

The HYSF SUBSEA Standard Circular 10-pin series uses the following standard cable wiring color sequence:

Pin Number	Wire Color
1	Red
2	Red/White
3	Black
4	Black/White
5	Yellow
6	Yellow/White
7	Blue
8	Blue/White
9	Orange
10	Orange/White

This table represents the standard cable wiring reference for the 10-pin Standard Circular Series.Important: Bulkhead connectors may be supplied with numbered internal wires or alternative wire identification arrangements. The actual pin-to-wire mapping should always be verified using the supplied wiring diagram.

Compatible Mating Connectors and Accessories

IL10F – 10-Pin Female Inline Underwater Connector

The IL10F is the standard mating connector for the BH10M male bulkhead receptacle.Typical IL10F characteristics include:

• Ten female electrical contacts
• Molded neoprene rubber construction
• Gold-plated contact surfaces
• Standard 1-meter underwater cable
• Wet-mateable interface
• 6,000-meter depth rating

When mated, the BH10M and IL10F provide a detachable electrical connection between an external underwater cable and equipment electronics inside a sealed housing.

DC10F – 10-Pin Female Dummy Plug

The DC10F is the corresponding female protective dummy connector for the BH10M male bulkhead interface.When the IL10F cable connector is disconnected, the DC10F can be installed to help protect the BH10M mating interface.The dummy plug helps reduce environmental contamination and accidental mechanical damage during equipment storage, maintenance, and suitable underwater operations.The DC10F is a protective accessory and does not transmit electrical power or signals.

BH10F – 10-Pin Female Bulkhead Connector

The BH10F is the female-contact version of the Standard Circular 10-pin bulkhead connector.The standard mating relationships are:

• BH10M mates with IL10F.
• BH10F mates with IL10M.

Both bulkhead versions belong to the HYSF Standard Circular connector family.

Typical Applications

Remotely Operated Vehicles (ROVs)

ROVs commonly require multiple electrical connections through sealed pressure housings.The BH10M can be integrated into underwater electronic enclosures to provide suitable connections for:

• External sensors
• Underwater cameras
• Control electronics
• Monitoring equipment
• Auxiliary instrumentation

Its ten-contact arrangement allows several electrical circuits to pass through one bulkhead interface.

Autonomous Underwater Vehicles (AUVs)

AUVs often contain multiple internal electronic modules and external instruments.The BH10M provides a panel-mounted electrical interface suitable for compatible power, signal, and control circuits.Its detachable mating design supports maintenance and replacement of underwater cables.

Underwater Camera Systems

Underwater cameras and imaging systems require reliable electrical connections between external cables and sealed electronic housings.The BH10M can provide a watertight bulkhead interface for appropriate electrical circuits.Compatibility with specific video or Ethernet protocols depends on the cable construction, conductor pairing, shielding, and complete system design.

Oceanographic Instrumentation

The BH10M can be integrated into marine scientific equipment such as:

• CTD-related instruments
• Underwater acoustic devices
• Oceanographic monitoring platforms
• Marine environmental sensors
• Scientific data acquisition equipment
• Seabed observation systems

Its ten-contact configuration provides additional wiring capacity for instruments requiring multiple electrical channels.

Offshore Inspection Equipment

Offshore monitoring and inspection systems frequently operate under seawater exposure, mechanical stress, and hydrostatic pressure.The BH10M provides a robust electrical interface for suitable subsea electronic enclosures and instrumentation systems.

Marine Research Platforms

Research laboratories and underwater equipment manufacturers often require customized electrical bulkhead connections.The BH10M offers a standardized ten-contact connector arrangement suitable for integration into compatible pressure housings and marine electronic systems.

Installation Guidelines

Proper installation is essential for maintaining the watertight performance of a bulkhead connector.

Step 1: Confirm the Mounting Dimensions

Verify the 5/8-18 UNF-2A mounting thread and required panel opening dimensions.Check that the selected connector configuration is compatible with the equipment housing wall thickness.

Step 2: Inspect the Connector

Check the housing, contact assembly, and sealing surfaces for scratches, damage, or contamination.

Step 3: Prepare the Equipment Housing

Ensure the mounting hole is machined according to the approved technical drawing.Remove sharp edges, metal particles, and other contaminants.

Step 4: Inspect the O-Ring

Check the sealing component for damage, deformation, or contamination.Use the correct O-ring specification and follow the recommended installation procedure.

Step 5: Install the BH10M

Position the connector in the equipment housing and secure it using the appropriate mounting arrangement.Avoid excessive tightening or unnecessary mechanical stress.

Step 6: Connect the Internal Wiring

Connect the internal wire leads according to the approved pin assignment.Verify electrical continuity and wiring identification before applying power.

Step 7: Mate the IL10F Cable Connector

Inspect the mating interface and align the IL10F correctly with the BH10M.Follow the applicable mating instructions to ensure proper engagement.

Step 8: Perform Final Inspection and Testing

Verify electrical continuity and insulation performance.Where required, conduct hydrostatic pressure testing of the complete equipment enclosure before deployment.

Quality Control and Testing

HYSF SUBSEA supports underwater connector manufacturing through quality-control procedures such as:

• Hydrostatic pressure testing
• Electrical continuity testing
• Insulation resistance measurement
• Dielectric withstand testing
• Contact inspection
• Dimensional verification
• O-ring sealing inspection
• Mechanical integrity checks

Additional inspection and testing requirements can be specified according to the intended application.

Frequently Asked Questions

Q1: What is BH10M?

BH10M is a ten-contact male bulkhead underwater electrical connector in the HYSF Standard Circular Series.

Q2: Which inline connector mates with BH10M?

The standard mating connector is the IL10F 10-pin female inline underwater connector.

Q3: Is BH10M compatible with SubConn connectors?

Yes. BH10M is designed for compatibility with corresponding SubConn Standard Circular underwater connector configurations.

Q4: What is the mounting thread size?

The standard mounting thread is 5/8-18 UNF-2A.

Q5: What is the standard housing material?

The standard housing is manufactured from 316Lステンレス鋼. Anodized aluminum configurations may also be available.

Q6: What is the maximum operating depth?

The standard BH10M is designed for underwater depths of up to 6,000 meters, corresponding to approximately 60 MPa.

Q7: What are the electrical ratings?

The connector is rated for 550V AC/DC and 10A per contact.

Q8: What is the standard internal wire length?

The standard internal wire lead length is approximately 0.3 meters.

Q9: Can BH10M be connected underwater?

Yes. BH10M belongs to the wet-mateable Standard Circular Series. Electrical power should normally be disconnected before mating or unmating.

Q10: Does BH10M use O-ring sealing?

Yes. The bulkhead installation uses an O-ring sealing arrangement to help maintain watertight integrity.

Q11: Which dummy connector protects BH10M?

The corresponding protective accessory is the DC10F female dummy plug.

Q12: Is BH10M the same as MCBH10M?

No. BH10M belongs to the Standard Circular Series, while MCBH10M belongs to the Micro Circular Series. Their mating interfaces and mounting dimensions are different.

Q13: Can the internal wire length be customized?

Yes. Alternative internal wire lengths, conductor arrangements, and termination requirements can be considered.

Q14: Can BH10M be installed in an aluminum housing?

Yes, provided the installation dimensions and sealing arrangement are suitable. Galvanic corrosion protection should be considered when stainless steel and aluminum components are exposed to seawater.

Why Choose HYSF SUBSEA?

HYSF SUBSEA specializes in underwater electrical connectors, subsea bulkhead connectors, marine cable assemblies, and customized underwater interconnection solutions.Our manufacturing capabilities include:

• SubConn-compatible underwater connector manufacturing
• Precision-machined stainless steel bulkhead housings
• Standard and customized underwater cable assemblies
• Deep-water pressure testing
• OEM and ODM engineering support
• Mechanical drawings and 3D models
• Customized wiring and cable termination solutions
• Underwater connector accessories
• 12-month product warranty

The BH10M 10-pin male bulkhead underwater connector provides a reliable electrical interface for marine equipment requiring multiple circuits, durable pressure-resistant sealing, and compatibility with established subsea connector systems.