DIL8M 8-Pin Male Inline Underwater Connector – SubConn Compatible Standard Circular Series
Product Overview
The
HYSF SUBSEA DIL8M 8-Pin Male Inline Underwater Connector is a compact subsea electrical connector designed to provide reliable multi-channel electrical connections in demanding marine and underwater environments.Featuring eight gold-plated electrical contacts, a flexible chloroprene rubber connector body, and an integrated underwater cable, the DIL8M provides a practical connection solution for ROVs, AUVs, underwater cameras, marine sensors, subsea instrumentation, and offshore monitoring equipment.As part of the HYSF DIL Circular Connector Series, the DIL8M features a male inline mating interface designed for compatible female underwater connectors.Its compact connector body has an overall length of approximately
19 mm, making it particularly suitable for underwater equipment where installation space and cable management are important.The DIL8M has a catalog electrical specification of
300V and 3–10A, depending on the selected configuration. It is designed for underwater applications at depths of up to
6,000 meters, with a specified mating durability of more than 500 cycles.The connector features a high-flex chloroprene rubber body, gold-plated brass contacts, and a standard 316L stainless steel shell and coupling nut. Titanium housing options are also available.The standard inline cable length is approximately
1 meter, with customized cable lengths, shell materials, O-ring configurations, and other mechanical specifications available according to project requirements.The DIL8M is designed for compatibility with corresponding SubConn Standard Circular DIL and DDC connector interfaces, subject to verification of the exact mating configuration.
Key Features and Benefits
1. Eight-Pin Male Inline Electrical Configuration
The DIL8M features eight male electrical contact positions arranged in a compact circular connector interface.Its eight-pin configuration allows multiple electrical circuits to pass through one underwater connection.This makes it suitable for equipment requiring several power, control, and signal connections without installing multiple separate connectors.Typical applications include:
- Underwater sensor connections
- Marine instrumentation
- ROV auxiliary electrical systems
- Underwater camera connections
- Subsea control circuits
- Marine monitoring equipment
- Acoustic measurement systems
- Multi-channel underwater instruments
The eight-contact arrangement provides flexibility for different wiring configurations.The actual pin allocation should be defined according to the approved electrical schematic and intended application.
2. Compact 19 mm Inline Connector Body
One of the main advantages of the DIL8M is its compact connector construction.The connector body has an overall reference length of approximately
19 mm.Its compact tapered design supports cable termination and strain relief while helping minimize the space occupied by the mating connector.This is particularly useful in:
- Compact ROV assemblies
- Underwater camera housings
- AUV electronic modules
- Subsea sensor packages
- High-density cable assemblies
- Space-constrained marine equipment
The compact dimensions can simplify equipment integration and reduce mechanical interference around the connector interface.The final installation envelope should be verified using the approved mechanical drawing.
3. Electrical Rating of 300V and 3–10A
The DIL8M has a catalog electrical specification of
300V / 3–10A.The applicable current rating depends on the selected contact and cable configuration.This electrical specification makes the connector suitable for appropriately designed underwater systems involving power, control, and instrumentation circuits.When selecting the DIL8M, engineers should consider:
- Operating voltage
- Continuous operating current
- Contact loading
- Number of simultaneously energized contacts
- Cable conductor cross-sectional area
- Operating temperature
- Voltage drop
- Insulation requirements
- Heat dissipation
The maximum current should not automatically be applied to every contact simultaneously.For continuous operation near the electrical limits, the complete connector and cable assembly should be evaluated under the intended operating conditions.
4. Designed for Deep-Sea Applications up to 6,000 Meters
The HYSF DIL8M is specified for underwater applications at depths of up to
6,000 meters.This makes it suitable for consideration in demanding subsea systems requiring reliable electrical connections under high hydrostatic pressure.Potential applications include:
- Deep-water ROV systems
- Autonomous underwater vehicles
- Oceanographic research instruments
- Subsea monitoring equipment
- Marine scientific instruments
- Underwater cameras
- Offshore inspection systems
- Deep-sea sensor networks
The pressure capability of the complete underwater assembly depends on the mating connector, cable configuration, sealing arrangement, and installation conditions.For critical applications, the complete mated assembly should be verified through the appropriate pressure qualification and testing procedures.
5. More Than 500 Wet-Mating Cycles
The DIL8M has a specified mating durability of more than
500 cycles.This makes it suitable for underwater equipment requiring repeated connection and disconnection during operation, maintenance, testing, and equipment replacement.Typical applications include:
- Removable underwater sensors
- ROV equipment interfaces
- Modular subsea instrumentation
- Marine research equipment
- Underwater camera systems
- Replaceable cable assemblies
- Offshore inspection equipment
Correct alignment, clean contact surfaces, and proper mating procedures are important for maintaining connector performance over repeated cycles.Electrical power should be isolated before mating or unmating unless energized operation has been specifically qualified.
6. High-Flex Chloroprene Rubber Connector Body
The standard DIL8M features a high-flex chloroprene rubber connector body.Chloroprene rubber is commonly used in marine connector construction because of its flexibility and suitability for demanding environmental conditions.The molded body provides mechanical support for the electrical contact assembly and cable termination.Its principal advantages include:
- Flexible rubber construction
- Compact connector geometry
- Integrated cable strain relief
- Suitable for marine applications
- Practical installation and handling
- Support for flexible cable routing
The rubber body helps protect the internal electrical interface and cable termination from routine mechanical handling.Periodic inspection is recommended to identify cuts, cracks, deformation, or other signs of material deterioration.
7. Gold-Plated Brass Electrical Contacts
The DIL8M uses gold-plated brass electrical contacts.Brass provides a conductive contact base, while gold plating helps reduce oxidation at the mating surface.This contact arrangement supports reliable electrical connections for suitable underwater power and signal applications.Gold-plated contacts are particularly useful in subsea instrumentation systems where stable electrical contact performance is important.The contact interface should be inspected before mating and kept free from contamination, sand, sediment, and other foreign particles.
8. Corrosion-Resistant 316L Stainless Steel Shell
The standard DIL8M shell and coupling nut are manufactured from
316L stainless steel.316L stainless steel provides good corrosion resistance and mechanical strength for marine equipment.Its main advantages include:
- Good resistance to marine corrosion
- High mechanical strength
- Durable coupling components
- Long-term dimensional stability
- Suitability for offshore and subsea applications
For specialized applications, titanium shell options are also available.Titanium provides an excellent strength-to-weight ratio and strong corrosion resistance in seawater environments.The appropriate material should be selected according to the equipment design, mechanical requirements, and surrounding materials.
9. Nitrile and Viton O-Ring Options
The DIL8M product configuration supports different O-ring material options.The standard sealing material is Nitrile rubber, while Viton/FKM is available as an alternative.These options allow engineers to select a suitable sealing material according to the intended environmental and operating requirements.O-ring selection should consider:
- Seawater exposure
- Operating temperature
- Chemical compatibility
- Compression requirements
- Long-term material stability
- Maintenance intervals
The correct sealing material and dimensions should be confirmed for the complete connector configuration.
10. Standard 1-Meter Cable and Custom Cable Assemblies
The standard DIL8M inline configuration is supplied with approximately
1 meter of underwater cable.This provides a practical cable length for many ROV, AUV, and underwater instrumentation applications.Customized cable assemblies are available according to project requirements.Possible customization options include:
- Alternative cable lengths
- Customized cable diameters
- Different conductor specifications
- Customized cable jacket materials
- Customized pin assignments
- Customized conductor identification
- Specialized cable termination arrangements
For equipment requiring specific cable routing or electrical performance, the complete cable specification should be confirmed before production.
11. SubConn-Compatible Standard Circular Interface
The HYSF DIL8M is designed for compatibility with corresponding SubConn Standard Circular DIL and DDC connector interfaces.This makes it suitable for consideration in new underwater equipment designs and compatible replacement applications.Potential uses include:
- Replacement underwater cable connectors
- ROV system upgrades
- Marine instrumentation
- Offshore equipment maintenance
- Subsea cable assemblies
- OEM underwater equipment integration
Compatibility should be verified using the exact connector series, contact configuration, mating dimensions, and locking arrangement.
DIL8M Technical Specifications
| Parameter | Specification |
|---|
| Brand | HYSF SUBSEA |
| Model | DIL8M |
| Product Type | Male Inline Underwater Connector |
| Connector Series | DIL Circular |
| Number of Contacts | 8 Pins |
| Contact Gender | Male |
| Rated Voltage | 300V |
| Rated Current | 3–10A, Configuration-Dependent |
| Working Depth | Up to 6,000 Meters |
| Mating Durability | More Than 500 Cycles |
| Contact Resistance | Less Than 0.010 Ω |
| Insulation Resistance | Greater Than 200 MΩ |
| Temperature Rating | -4°C to +60°C |
| Connector Body | High-Flex Chloroprene Rubber |
| Standard Shell Material | 316L Stainless Steel |
| Optional Shell Material | Titanium |
| Contact Material | Gold-Plated Brass |
| Standard O-Ring | Nitrile |
| Optional O-Ring | Viton / FKM |
| Locking Sleeve | POM |
| Standard Cable Length | 1.0 Meter |
| Overall Connector Length | Approximately 19 mm |
| Standard Wire Identification | 8 Conductor Colors |
| Primary Female Inline Mating Connector | DIL8F |
| Female Bulkhead Mating Option | DBH8F |
| Compatibility | Corresponding SubConn Standard Circular DIL / DDC Interfaces |
| Customization | Cable Length, Shell Material, O-Ring and Electrical Configuration |
| Warranty | 12 Months |
Engineering Note: These specifications are based on the listed DIL8M product configuration. The current rating depends on the selected configuration. Confirm all electrical and mechanical requirements against the approved technical drawing before system integration.
Eight-Pin Wiring and Conductor Identification
The DIL8M standard inline cable uses eight individually identified conductors.The standard color mapping is:
| Pin Number | Standard Wire Color |
|---|
| Pin 1 | Black |
| Pin 2 | White |
| Pin 3 | Red |
| Pin 4 | Green |
| Pin 5 | Orange |
| Pin 6 | Blue |
| Pin 7 | White / Black |
| Pin 8 | Red / Black |
This conductor identification helps simplify installation, maintenance, and electrical troubleshooting.
Recommended Wiring Verification
Before integrating the DIL8M into an underwater electrical system:
- Confirm the connector contact numbering.
- Verify the mating-face orientation.
- Identify all eight conductors.
- Check the pin-to-wire mapping against the approved wiring diagram.
- Perform electrical continuity testing.
- Check for unintended shorts between contacts.
- Confirm the required power, signal, and ground assignments.
The standard wire colors provide a reference only. Customized cable assemblies should follow their approved production wiring diagrams.
Compatible Connectors and Accessories
DIL8F – 8-Pin Female Inline Underwater Connector
The
DIL8F is the corresponding female inline connector in the HYSF DIL Circular Series.It is designed to mate with the DIL8M male inline connector for compatible cable-to-cable underwater connections.Typical applications include:
- Subsea cable extensions
- ROV cable assemblies
- Underwater instrumentation
- Detachable marine equipment
- Multi-channel underwater electrical connections
Typical connection:DIL8M Male Inline + DIL8F Female Inline
DBH8F – 8-Pin Female Bulkhead Underwater Connector
The
DBH8F is a female bulkhead connector designed for installation through compatible underwater equipment housings.It provides a fixed electrical interface between internal equipment electronics and external subsea cables.The DIL8M male inline connector can be used with the corresponding DBH8F female bulkhead when the mating interface is compatible.
Typical connection:DIL8M Male Inline + DBH8F Female Bulkhead
DDC8F – 8-Pin Female Dummy Plug
The
DDC8F is a corresponding female protective dummy plug for compatible male connector interfaces.It can be considered for protecting unused DIL8M or other compatible male connector interfaces, subject to verification of the exact mating arrangement.The dummy plug does not provide functional electrical transmission.
Typical Applications of DIL8M
1. Remotely Operated Vehicles (ROVs)
ROVs use multiple underwater electrical connectors for sensors, cameras, lighting, thrusters, and auxiliary equipment.The DIL8M provides an eight-pin male inline connection for suitable electrical circuits in compact ROV assemblies.
2. Autonomous Underwater Vehicles (AUVs)
AUVs frequently use modular electronic systems and external instruments.The DIL8M can provide a detachable multi-channel electrical interface for suitable underwater equipment.
3. Underwater Cameras and Imaging Systems
Underwater cameras may require multiple electrical connections for power, control, and auxiliary functions.The DIL8M can be integrated into compatible underwater camera cable assemblies.Actual video transmission capability depends on the complete cable design and signal requirements.
4. Sensors and Instrumentation
Marine sensors often require several electrical conductors for measurement, power, and control.The eight-pin configuration provides flexibility for suitable sensor interfaces, including CTD equipment, sonar systems, and hydrophones.
5. Diver Communication Systems
Underwater communication equipment may require multi-conductor electrical connections for suitable audio, power, and auxiliary circuits.The DIL8M can be considered for appropriately designed marine communication systems.
6. Offshore Energy and Subsea Control
Offshore equipment requires reliable electrical connections for monitoring, instrumentation, and control systems.The DIL8M can be integrated into suitable subsea electrical assemblies operating within its approved specifications.
7. Oceanographic Research Equipment
Marine research instruments frequently require detachable cable connections for sensors and measurement equipment.The DIL8M provides an eight-pin interface suitable for compatible underwater research applications.
Installation Guidelines
Step 1: Verify Connector Compatibility
Confirm that the mating connector is a compatible eight-pin female interface, such as DIL8F or DBH8F.
Step 2: Inspect the Mating Interfaces
Check the electrical contacts, rubber body, sealing components, and cable entry for contamination or visible damage.
Step 3: Verify the Wiring
Confirm all eight conductor assignments using the approved wiring diagram.
Step 4: Align the Connectors
Align the mating interfaces according to the approved connector orientation.Avoid forcing the connector into an incorrect position.
Step 5: Complete the Mating Operation
Secure the connector using the approved coupling and locking arrangement.
Step 6: Perform Electrical Checks
Verify continuity and insulation resistance according to the application requirements.
Step 7: Verify the Complete Assembly
Before underwater deployment, confirm that the connector, mating component, cable, and installation meet the required electrical and pressure specifications.
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
- O-ring inspection
- Hydrostatic pressure testing
- Dielectric withstand testing where applicable
The required 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 DIL8M underwater connector?
The DIL8M is an 8-pin male inline underwater electrical connector designed for multi-channel subsea power, control, and signal connections.
Q2: What is the rated voltage?
The listed rated voltage is 300V.
Q3: What is the rated current?
The listed electrical specification is 3–10A, depending on the selected configuration.
Q4: What is the maximum working depth?
The DIL8M is specified for applications up to 6,000 meters, subject to the complete assembly configuration and qualification.
Q5: What is the standard cable length?
The standard inline cable length is approximately 1 meter.
Q6: Can the cable length be customized?
Yes. Alternative cable lengths and customized cable assemblies are available according to project requirements.
Q7: What is the connector body material?
The connector body is manufactured from high-flex chloroprene rubber.
Q8: What material are the electrical contacts made from?
The contacts are gold-plated brass.
Q9: What shell materials are available?
The standard shell and coupling nut are made from 316L stainless steel. Titanium is available as an alternative.
Q10: Which connector mates with DIL8M?
The primary female inline mating connector is DIL8F. DBH8F is a corresponding female bulkhead option for suitable installations.
Q11: What is the standard wire color arrangement?
Pin 1 Black, Pin 2 White, Pin 3 Red, Pin 4 Green, Pin 5 Orange, Pin 6 Blue, Pin 7 White/Black, and Pin 8 Red/Black.
Q12: Is DIL8M compatible with SubConn?
The DIL8M is designed for compatibility with corresponding SubConn Standard Circular DIL and DDC connector interfaces. Exact compatibility should be confirmed against the applicable drawings.
Q13: How many mating cycles does DIL8M support?
The listed mating durability is more than 500 cycles.
Q14: What is the connector length?
The overall connector length is approximately 19 mm.
Q15: Can the O-ring material be customized?
Yes. Standard Nitrile and optional Viton/FKM sealing materials are available according to the selected configuration.
Q16: Can DIL8M be used for Ethernet?
The eight-pin configuration can support suitable multi-conductor electrical and data applications. However, Ethernet compatibility and transmission speed must be verified using the complete cable, pin assignment, impedance, and signal-integrity specifications.
Q17: What is the warranty period?
The standard HYSF SUBSEA product warranty is 12 months, subject to the applicable warranty terms.
Why Choose HYSF SUBSEA DIL8M?
The
HYSF SUBSEA DIL8M 8-Pin Male Inline Underwater Connector provides a compact and versatile electrical connection solution for marine and subsea applications.Its principal advantages include:
- Eight-pin male inline configuration
- Compact 19 mm connector body
- 300V rated voltage
- 3–10A electrical rating, configuration-dependent
- Design depth capability up to 6,000 meters
- More than 500 specified mating cycles
- High-flex chloroprene rubber body
- Gold-plated brass electrical contacts
- 316L stainless steel shell
- Optional titanium construction
- Nitrile or Viton/FKM O-ring options
- Standard 1-meter cable
- Customized cable lengths and configurations
- Compatibility with corresponding SubConn Standard Circular DIL/DDC interfaces
- 12-month product warranty
For ROV manufacturers, AUV developers, marine research organizations, and underwater equipment manufacturers, the DIL8M provides a practical solution for integrating multiple electrical circuits into a compact underwater connector assembly.Its compact construction, flexible cable configuration, and corrosion-resistant metal components make it suitable for a wide range of appropriately designed subsea electrical systems.
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