ILM1M Mini-1 1-Pin Male Inline Underwater Connector – Subsea Circular Cable Connector
Product Overview
The
HYSF SUBSEA ILM1M Mini-1 1-Pin Male Inline Underwater Connector is an ultra-compact subsea electrical connector designed for underwater applications requiring a reliable single-contact electrical connection in a very small installation space.Belonging to the Circular Mini 1 Contact Series, the ILM1M features one male electrical contact and a compact cylindrical cable-mounted design.Unlike conventional multi-pin underwater connectors, the ILM1M provides a dedicated single-contact electrical interface. Its miniature construction makes it particularly suitable for compact ROVs, AUVs, underwater instruments, marine sensors, and specialized subsea electrical systems.The connector features a chloroprene rubber body, gold-plated brass electrical contacts, and a synthetic rubber cable assembly.According to the SubConn Circular Mini 1 Contact technical specifications, the ILM1M supports a rated voltage of 600 V AC/DC RMS and a rated current of 10 A.When correctly mated, the connector is qualified for pressures up to 1,400 bar, while its open-face pressure qualification is 800 bar.The standard cable configuration is approximately 0.6 meter with an 18 AWG (0.82 mm²) conductor.The ILM1M is designed to mate with the corresponding ILM1F female inline connector, providing a compact single-contact connection solution for demanding subsea applications.
Key Features and Benefits
1. Single-Pin Male Electrical Configuration
The ILM1M features one male electrical contact designed for applications requiring a single electrical connection.Its single-contact configuration provides a compact interface for dedicated power or electrical signal circuits.Typical applications include:
- Single-conductor power connections
- Subsea electrical distribution
- Underwater instrumentation
- Marine sensor connections
- ROV auxiliary power
- AUV electrical systems
- Compact underwater equipment
- Specialized subsea electrical assemblies
The male contact pin is designed to mate with the corresponding ILM1F female connector.
2. Ultra-Compact Mini-1 Circular Design
The ILM1M belongs to the Circular Mini 1 Contact Series, one of the smallest connector configurations in the SubConn Circular connector family.Its compact cylindrical body has an approximate diameter of 8 mm and a drawing length of 22.2 mm.The miniature design provides several advantages:
- Minimal installation space
- Lightweight cable-mounted construction
- Convenient integration into compact equipment
- Reduced connector footprint
- Simplified single-circuit connections
- Greater flexibility in equipment layout
The ILM1M is particularly useful when conventional multi-pin underwater connectors are unnecessarily large for the required electrical connection.
3. Gold-Plated Brass Electrical Contact
The ILM1M features a precision male electrical contact manufactured from gold-plated brass UNS-C36000.Gold plating provides a conductive contact surface and helps reduce oxidation at the electrical interface.The published specifications include:
- Gold-plated brass contact
- Contact resistance below 0.01 Ω
- Insulation resistance above 200 MΩ
- Rated current of 10 A
- Rated voltage of 600 V AC/DC RMS
The electrical contact is designed for reliable operation in demanding underwater environments.
4. Chloroprene Rubber Connector Body
The ILM1M features a chloroprene rubber connector body.Chloroprene rubber provides flexibility and environmental resistance for underwater cable connector applications.Its rubber construction allows the connector to maintain a compact and practical form factor while supporting demanding marine operating conditions.
5. High-Pressure Subsea Performance
The ILM1M Circular Mini 1 Contact connector is qualified for high-pressure underwater applications.According to the official SubConn technical catalog:
- Mated pressure qualification: 1,400 bar (20,300 psi)
- Open-face pressure qualification: 800 bar (11,600 psi)
The distinction between mated and open-face pressure ratings is important when selecting connectors for subsea applications.The complete connector assembly should be evaluated according to its mating configuration, cable construction, and installation conditions.
6. 600V AC/DC Voltage Rating
The ILM1M supports a rated voltage of 600 V AC/DC RMS.This makes it suitable for appropriately designed single-contact electrical applications requiring a higher voltage rating.The connector also features a rated current of 10 A.Electrical suitability should be evaluated according to the actual operating voltage, current, cable specifications, and environmental conditions.
7. 10A Rated Current
The ILM1M has a rated current of 10 A.Its single-contact design is suitable for dedicated electrical circuits where one independent conductor is required.Actual current-carrying performance depends on cable construction, operating temperature, installation conditions, and the complete electrical system.
8. Standard 18 AWG Synthetic Rubber Cable
The standard ILM1M cable configuration uses an 18 AWG (0.82 mm²) synthetic rubber insulated conductor.The standard cable length is approximately 0.6 meter (2 ft).The published cable color identification is:
The nominal cable outside diameter is approximately 3.6 mm.Customized cable configurations and lengths can be evaluated according to project requirements.
9. More Than 500 Wet Mating Cycles
The ILM1M is designed for repeated underwater mating and unmating operations.The official SubConn technical specification indicates more than 500 wet mating cycles.Proper alignment, clean contact surfaces, and correct mating procedures help maintain electrical and mechanical performance.
10. Compatible ILM1F Female Connector
The ILM1M is designed to mate with the corresponding ILM1F Mini-1 female inline connector.Together, these connectors provide a single-contact subsea cable-to-cable connection.This configuration is suitable for compact electrical connections in underwater instruments, marine equipment, and subsea systems.
11. Suitable for Compact ROV and AUV Applications
The ILM1M is particularly useful for underwater equipment requiring a dedicated single-contact electrical connection.Potential applications include:
- Micro-ROV electrical systems
- AUV auxiliary circuits
- Underwater sensors
- Marine instrumentation
- Subsea monitoring equipment
- Compact underwater robotic systems
- Oceanographic research instruments
- Specialized subsea cable assemblies
Its miniature design helps reduce the installation footprint in compact equipment.
12. Custom Cable Assembly Options
Different underwater equipment manufacturers have different requirements for cable length, conductor specifications, and assembly configurations.HYSF SUBSEA can evaluate customized cable assemblies according to project requirements.Potential customization options include:
- Cable length
- Cable material
- Conductor specifications
- Wire identification
- Cable termination
- Custom cable assemblies
- Specialized installation requirements
Customized configurations should be confirmed against the required electrical and pressure specifications.
ILM1M Technical Specifications
| Parameter | Specification |
|---|
| Brand | HYSF SUBSEA |
| Model | ILM1M |
| SKU | HYSF-ILM1M |
| Product Type | Mini-1 Male Inline Underwater Connector |
| Connector Series | Circular Mini 1 Contact |
| Number of Contacts | 1 Contact |
| Contact Gender | Male |
| Installation Type | Inline / Cable Mount |
| Drawing Length | 22.2 mm |
| Body Diameter | Ø8 mm |
| Connector Body Material | Chloroprene Rubber |
| Contact Material | Gold-Plated Brass UNS-C36000 |
| Locking Sleeve Material | POM |
| Standard Cable Length | 0.6 m (2 ft) |
| Cable Specification | 18 AWG / 0.82 mm² |
| Cable Material | Synthetic Rubber |
| Cable Outside Diameter | Approximately 3.6 mm |
| Standard Wire Color | Black |
| Rated Voltage | 600 V AC/DC RMS |
| Rated Current | 10 A |
| Contact Resistance | <0.01 Ω |
| Insulation Resistance | >200 MΩ |
| Mated Pressure Rating | 1,400 bar / 20,300 psi |
| Open-Face Pressure Rating | 800 bar / 11,600 psi |
| Wet Mating Cycles | >500 |
| Water Temperature | -4°C to +60°C |
| Air Temperature | -40°C to +60°C |
| Storage Temperature | -40°C to +60°C |
| Mating Connector | ILM1F |
Engineering Note: The technical specifications follow the SubConn Circular Mini 1 Contact technical catalog, Edition 5.1. The drawing length of 22.2 mm refers to the ILM1M male connector. Confirm the exact HYSF production configuration, cable length, dimensions, mating interface, and applicable pressure qualification before ordering or deployment.
Single-Pin Wiring Configuration
The ILM1M features one male electrical contact.The standard cable configuration uses one 18 AWG (0.82 mm²) synthetic rubber insulated conductor.Standard conductor identification:
| Contact | Wire Color |
|---|
| Contact 1 | Black |
Before cable assembly or equipment integration, engineers should verify:
- The male contact position.
- The corresponding female connector orientation.
- Conductor identification.
- Electrical continuity.
- Insulation resistance.
- Cable termination requirements.
Important: Follow the approved connector wiring documentation for final assembly.
Compatible Connectors and Accessories
ILM1F – Mini-1 1-Pin Female Inline Underwater Connector
The
ILM1F is the corresponding female inline connector in the Circular Mini 1 Contact Series.It features one female electrical contact and is designed to mate with the ILM1M male connector.Together, the ILM1M and ILM1F provide a compact single-contact underwater cable connection.
DCM1M – Mini-1 Male Protective Dummy Connector
The DCM1M is a male protective dummy connector designed for compatible female Mini-1 connector interfaces.It helps protect the exposed female mating interface when the operational connection is not in use.
DCM1F – Mini-1 Female Protective Dummy Connector
The DCM1F is a female protective dummy connector designed for compatible male Mini-1 connector interfaces.
DLSM1-M – Mini-1 Male Locking Sleeve
The DLSM1-M is the corresponding male locking sleeve accessory for compatible Mini-1 connector configurations.
DLSM1-F – Mini-1 Female Locking Sleeve
The DLSM1-F is the corresponding female locking sleeve accessory.
Note: Verify the exact accessory compatibility and ordering configuration before selecting locking sleeves or dummy connectors.
Typical Applications of ILM1M
1. Remotely Operated Vehicles (ROVs)
ROVs require compact electrical interfaces for sensors, auxiliary equipment, and dedicated power circuits.The ILM1M provides a single-contact male connection for suitable subsea cable assemblies.
2. Autonomous Underwater Vehicles (AUVs)
AUVs frequently incorporate multiple sensors, instruments, and electrical modules.The miniature ILM1M connector can be considered for dedicated single-contact electrical connections where installation space is limited.
3. Marine Sensors and Instrumentation
Marine instrumentation may require individual electrical connections for dedicated power or signal circuits.The single-contact configuration provides a compact connection solution for suitable sensor systems.
4. Underwater Monitoring Systems
Underwater monitoring equipment often uses distributed electrical connections between sensors and control modules.The ILM1M provides a compact cable-mounted interface for appropriately designed monitoring systems.
5. Oceanographic Research Equipment
Scientific underwater instruments frequently require compact electrical connections in confined equipment housings.The Mini-1 design helps reduce the connector footprint in specialized research equipment.
6. Subsea Electrical Cable Assemblies
The ILM1M can be integrated into customized subsea cable assemblies requiring a single-contact male connector.Its corresponding ILM1F female connector provides the matching cable-mounted connection.
Installation and Maintenance Guidelines
Step 1: Inspect the Connector
Inspect the connector body, male contact, and cable assembly for visible damage or contamination.
Step 2: Check Contact Alignment
Ensure that the male contact is clean and correctly aligned with the mating female connector.
Step 3: Verify the Electrical Connection
Confirm electrical continuity and insulation resistance before installation.
Step 4: Mate the Connector
Align the ILM1M with the corresponding ILM1F and follow the specified mating procedure.Avoid forcing incorrectly aligned connectors together.
Step 5: Verify the Locking Arrangement
Ensure that the applicable locking sleeve or retention accessory is correctly installed.
Step 6: Perform System Testing
Verify the complete electrical assembly and applicable pressure qualification before underwater deployment.
Step 7: Clean After Seawater Exposure
After recovery from seawater, follow the manufacturer’s recommended freshwater cleaning and maintenance procedures.Inspect the connector body and contact surfaces before storage or subsequent mating.
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
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 ILM1M underwater connector?
The ILM1M is a Mini-1 single-contact male inline underwater connector from the SubConn Circular Mini 1 Contact Series.
Q2: How many electrical contacts does ILM1M have?
The ILM1M features one male electrical contact.
Q3: What is the rated voltage?
The rated voltage is 600 V AC/DC RMS.
Q4: What is the rated current?
The rated current is 10 A.
Q5: What is the pressure rating?
The official specifications indicate 1,400 bar when mated and 800 bar in the open-face condition.
Q6: What is the standard cable length?
The standard cable length is approximately 0.6 meter (2 ft).
Q7: What cable specification is used?
The standard cable is 18 AWG (0.82 mm²) synthetic rubber cable.
Q8: What is the standard wire color?
The standard single conductor is black.
Q9: What materials are used?
The connector body is chloroprene rubber, and the electrical contact is gold-plated brass UNS-C36000.
Q10: What is the connector diameter?
The technical drawing indicates an approximate connector diameter of 8 mm.
Q11: What is the overall drawing length?
The ILM1M male connector drawing indicates a length of approximately 22.2 mm.
Q12: Which connector mates with ILM1M?
The corresponding female connector is ILM1F.
Q13: How many mating cycles can ILM1M support?
The official SubConn technical specification indicates more than 500 wet mating cycles.
Q14: Can the cable length be customized?
Yes. Customized cable lengths and cable assemblies can be evaluated according to project requirements.
Q15: Is ILM1M suitable for ROV applications?
Yes. Its single-contact configuration and miniature construction make it suitable for appropriately designed ROV auxiliary circuits, sensors, and subsea cable assemblies.
Why Choose HYSF SUBSEA ILM1M?
The
HYSF SUBSEA ILM1M Mini-1 1-Pin Male Inline Underwater Connector provides a compact electrical connection solution for specialized subsea applications.Its principal advantages include:
- Single-contact male inline configuration
- Ultra-compact Mini-1 circular design
- Approximately Ø8 mm connector diameter
- Gold-plated brass electrical contact
- Chloroprene rubber connector body
- 600 V AC/DC RMS rated voltage
- 10 A rated current
- 1,400 bar mated pressure qualification
- 800 bar open-face pressure qualification
- Standard 0.6-meter cable assembly
- 18 AWG / 0.82 mm² cable specification
- More than 500 wet mating cycles
- Corresponding ILM1F female connector
- Customized cable assembly options
For ROV manufacturers, AUV developers, marine research organizations, and underwater equipment manufacturers, the ILM1M provides a practical single-contact connection solution where compact dimensions and reliable subsea electrical performance are essential.Its miniature Circular Mini-1 design makes it particularly suitable for applications where conventional multi-pin underwater connectors are unnecessarily large.
