LPIL-8-MP-IM Impulse Low Profile In-Line 8-Pin Male Plug Underwater Connector

Product Overview

The HYSF SUBSEA LPIL-8-MP-IM Impulse Low Profile In-Line 8-Pin Male Plug Underwater Connector is a compact, high-pressure wet-pluggable electrical connector designed for demanding subsea, oceanographic, and underwater instrumentation applications.Featuring eight male pin contacts and a streamlined low-profile molded body, the LPIL-8-MP-IM provides a reliable electrical connection for underwater cable assemblies, ROV systems, AUV platforms, underwater gliders, subsea sensors, and marine monitoring equipment.As part of the Impulse-compatible Low Profile Wet-Pluggable Connector Series, the LPIL-8-MP-IM is designed for underwater applications where compact dimensions, reliable electrical performance, and high hydrostatic pressure resistance are essential.Unlike conventional cylindrical underwater connectors, the Low Profile LP series features a flat, streamlined body configuration. This low-profile design minimizes external projection and helps reduce hydrodynamic resistance, making it particularly suitable for autonomous underwater vehicles (AUVs), underwater gliders, profiling floats, and compact subsea instrument packages.The LPIL-8-MP-IM features eight male electrical pin contacts in an in-line cable connector configuration. Its eight-contact electrical interface provides multiple connection positions for compatible power supply, signal transmission, sensor connections, and auxiliary electrical circuits.The connector features a molded Chloroprene Rubber (Neoprene) body, providing a flexible protective structure for underwater cable connections. Gold-plated electrical contacts help maintain reliable electrical conductivity and corrosion resistance in demanding marine environments.The LPIL-8-MP-IM has a reference voltage rating of 250 V AC/DC RMS and a current rating of 5 A per contact.For demanding subsea applications, the connector provides a mated pressure rating of up to 10,000 psi (approximately 690 bar), corresponding to approximately 7,000 meters of seawater depth according to the product specification.The product specification also lists an open-face pressure rating of 7,000 psi (approximately 480 bar), providing an additional pressure-performance reference for compatible unmated connector configurations.The LPIL-8-MP-IM is designed for wet-pluggable applications and supports underwater mating and unmating operations when used according to the manufacturer’s procedures. The reference mating durability is more than 500 wet-mating cycles.A compatible locking sleeve should be installed before deployment to secure the mated connector assembly and reduce the risk of accidental disconnection during underwater operation.The LPIL-8-MP-IM is designed to be dimensionally compatible with corresponding Teledyne Impulse Low Profile LPMBH and LPIL connector hardware. The eight-pin male configuration can be integrated with compatible eight-contact female connector interfaces, including the LPMBH-8-FS-IM bulkhead configuration.Its eight-pin male configuration, low-profile body design, flexible rubber construction, gold-plated contacts, and high-pressure performance make it suitable for AUV sensor payloads, underwater gliders, ROV-mounted instrumentation, subsea cameras, hydrophone systems, oceanographic instruments, and deep-sea monitoring equipment.HYSF SUBSEA provides underwater electrical connectors, low-profile subsea connectors, wet-pluggable cable connectors, underwater bulkhead connectors, and customized subsea cable assemblies for marine equipment manufacturers, oceanographic research institutions, ROV manufacturers, AUV developers, and offshore engineering contractors.

Key Features and Benefits

1. Eight-Pin Male Plug Configuration

The LPIL-8-MP-IM features eight male electrical pin contacts in an in-line cable connector configuration.The eight-contact arrangement provides a compact electrical interface for underwater applications requiring multiple power, signal, and auxiliary connections.Key characteristics include:

• Eight male pin contacts
• Eight-contact electrical configuration
• In-line cable connector design
• Compact electrical connection interface
• Suitable for multi-channel power and signal circuits
• Compatible with corresponding eight-socket female connectors
• Designed for underwater cable assemblies
• Suitable for subsea instrumentation

Typical electrical applications include:

• Underwater power supply
• Subsea signal transmission
• Multi-sensor electrical connections
• Marine instrumentation
• Underwater monitoring systems
• AUV electrical connections
• ROV sensor connections
• Subsea camera systems
• Oceanographic instruments
• Underwater data acquisition equipment
• Auxiliary control circuits
• Marine communication systems

The eight-pin configuration allows multiple electrical circuits to be integrated into one compact underwater connector assembly, helping reduce the number of separate connectors required on subsea equipment.

2. Low-Profile and Streamlined Body Design

The LPIL-8-MP-IM features a low-profile body designed for applications where connector dimensions, external projection, and hydrodynamic resistance are important considerations.Unlike conventional cylindrical underwater connectors, the LP series uses a flatter and more streamlined body configuration.This design provides several advantages:

• Reduced external connector projection
• Compact installation footprint
• Streamlined underwater profile
• Reduced potential for snagging
• Improved integration with compact instrument packages
• Suitable for AUV hull-mounted equipment
• Suitable for underwater glider fairings
• Suitable for compact ROV sensor frames
• Improved integration in space-restricted equipment

For autonomous underwater vehicles and underwater gliders, external connector geometry can influence hydrodynamic resistance and overall equipment integration.The LPIL-8-MP-IM provides a low-profile connection solution for equipment designers who need to minimize protruding components on underwater platforms.

3. Impulse-Compatible Low Profile Connector Interface

The LPIL-8-MP-IM is designed as an Impulse-compatible low-profile in-line connector.Its dimensional interface is designed for compatibility with corresponding Teledyne Impulse LPMBH and LPIL connector hardware.This compatibility provides an alternative connector sourcing option for equipment manufacturers and subsea system integrators using Impulse Low Profile connection interfaces.Key characteristics include:

• Impulse-compatible low-profile interface
• Eight-pin male configuration
• In-line cable connector design
• Compatible mechanical connection interface
• Suitable for equipment replacement projects
• Designed for compatible subsea cable assemblies
• Suitable for OEM underwater equipment integration

For replacement applications, customers should verify connector dimensions, contact configuration, mating gender, cable arrangement, and the applicable engineering drawing before installation.

4. Molded Neoprene / Chloroprene Rubber Body

The LPIL-8-MP-IM features a molded Chloroprene Rubber (Neoprene) connector body.Chloroprene rubber is widely used in underwater connector systems because of its flexibility and suitability for marine environments.Key characteristics include:

• Molded rubber body
• Chloroprene Rubber / Neoprene construction
• Flexible cable connection structure
• Protective insulation around the electrical interface
• Suitable for underwater applications
• Designed for subsea cable assemblies
• Supports compact connector integration
• Suitable for repeated underwater equipment handling

The flexible molded body helps protect the electrical connection interface during normal cable handling, equipment deployment, and underwater operation.This construction is particularly useful for underwater instruments and subsea equipment requiring flexible cable connections.

5. 316 Stainless Steel Shell and Titanium Option

The LPIL-8-MP-IM product specification identifies 316 stainless steel hardware, with titanium available as an optional material.316 stainless steel provides corrosion resistance and mechanical durability for marine and subsea equipment applications.Titanium hardware can be considered for weight-sensitive equipment designs, including AUVs, underwater gliders, and compact oceanographic instrument packages.Available material references include:

• 316 Stainless Steel Shell
• Optional Titanium Hardware
• Chloroprene Rubber Molded Body
• Corrosion-resistant marine construction

Material selection should be confirmed according to the actual connector configuration and project requirements.

6. Gold-Plated Electrical Contacts

The LPIL-8-MP-IM features eight gold-plated male electrical pin contacts.Gold-plated contact surfaces help provide reliable electrical conductivity and corrosion resistance in demanding marine environments.The product specification identifies gold-plated beryllium copper / brass contact options.Key benefits include:

• Eight gold-plated male contacts
• Reliable electrical mating interface
• Improved corrosion resistance
• Stable electrical contact performance
• Low contact resistance
• Suitable for repeated mating operations
• Designed for subsea electrical connections
• Reliable power and signal transmission

The male pin configuration is designed to mate with the corresponding eight-socket female connector.The gold-plated contact arrangement helps maintain electrical continuity in compatible underwater power and signal systems.

7. 250 V AC/DC RMS Voltage Rating

The LPIL-8-MP-IM has a reference voltage rating of 250 V AC/DC RMS.This electrical rating makes the connector suitable for a variety of underwater instrumentation, monitoring, and electrical applications within its specified limits.Typical applications include:

• Underwater sensor power supply
• Marine monitoring equipment
• AUV auxiliary electrical circuits
• ROV instrumentation
• Subsea camera connections
• Underwater measurement equipment
• Oceanographic sensor systems
• Underwater communication equipment
• Subsea control circuits
• Multi-channel instrumentation

The voltage rating should be evaluated together with cable insulation, connector mating conditions, operating environment, and complete electrical system design.

8. 5 A Per Contact Current Rating

The LPIL-8-MP-IM has a reference current rating of 5 A per contact.Its eight electrical contacts provide eight individual connection positions for compatible power and signal applications.Electrical specifications:

• Number of Contacts: 8
• Contact Gender: Male Pin
• Current Rating: 5 A per Contact
• Voltage Rating: 250 V AC/DC RMS

The total allowable current of the complete connector and cable assembly should not be calculated simply by multiplying the individual contact rating by eight.Actual current capacity depends on simultaneous contact loading, conductor size, cable length, thermal conditions, and the manufacturer’s electrical derating requirements.This connector is suitable for compatible sensor power, auxiliary power, control, and signal circuits.For applications requiring higher current, a suitable higher-current subsea connector configuration should be evaluated.

9. High Hydrostatic Pressure Resistance

The LPIL-8-MP-IM is designed for demanding subsea applications requiring reliable electrical connections under high hydrostatic pressure.The reference mated pressure rating is:

• Mated Pressure: 10,000 psi
• Equivalent Pressure: Approximately 690 bar
• Reference Mated Depth: Approximately 7,000 m

The product specification also identifies an open-face pressure rating of:

• Open-Face Pressure: 7,000 psi
• Equivalent Pressure: Approximately 480 bar

These pressure specifications make the LPIL-8-MP-IM suitable for demanding underwater applications involving deepwater ROV equipment, AUV payloads, oceanographic instruments, subsea sensor packages, and underwater monitoring systems.The mated pressure rating applies to the correctly configured and mated connector assembly.Open-face pressure capability is a separate rating and should be considered independently.The complete installed equipment assembly must also be qualified for its intended operating depth.

10. Wet-Pluggable Connection Capability

The LPIL-8-MP-IM belongs to the Impulse-compatible Low Profile Wet-Pluggable Connector Series.Wet-pluggable underwater connectors are designed to support mating and unmating operations in an underwater environment when used according to the manufacturer’s procedures.This capability is particularly useful for subsea equipment requiring regular replacement, maintenance, or connection of external instruments.Typical benefits include:

• Underwater mating capability
• Reduced need to recover complete equipment assemblies
• Easier subsea equipment replacement
• Convenient sensor installation
• Flexible underwater instrument integration
• Suitable for marine research systems
• Designed for repeated connection operations
• Suitable for subsea equipment maintenance

The available product specification lists more than 500 wet-mating cycles.Actual service life depends on operating conditions, maintenance, contact cleanliness, seal condition, and correct mating procedures.

11. Locking Sleeve for Secure Connection

The LPIL-8-MP-IM uses a compatible locking sleeve arrangement to secure the mating connector assembly.The product specification identifies POM and stainless steel locking sleeve options.A locking sleeve helps prevent accidental connector separation caused by vibration, cable movement, or dynamic underwater operating conditions.Key benefits include:

• Secure mating connection
• Improved mechanical retention
• Reduced risk of accidental disconnection
• Suitable for ROV cable assemblies
• Suitable for AUV instrumentation
• Improved connection stability during deployment
• Additional mechanical protection

The locking sleeve is required according to the product installation guidance and should be correctly installed before deployment.

12. Nitrile O-Ring Sealing System

The LPIL-8-MP-IM product specification identifies nitrile O-rings as part of its sealing arrangement.The sealing components help maintain the connector’s watertight integrity during underwater operation.Key characteristics include:

• Nitrile rubber sealing elements
• O-ring sealing arrangement
• Protection against water ingress
• Designed for subsea mating interfaces
• Suitable for repeated connection operations
• Requires regular inspection and maintenance

O-rings should be inspected for cuts, deformation, wear, and contamination before mating.Replacement and lubrication should follow the applicable connector manufacturer’s instructions.

13. Electrical Insulation and Contact Resistance Performance

The available LPIL-8-MP-IM product specifications provide the following reference electrical performance values:

• Insulation Resistance: Greater than 200 MΩ
• Contact Resistance: Less than 0.01 Ω

These characteristics support reliable electrical performance in compatible underwater instrumentation systems.Insulation resistance is important for maintaining electrical separation between contacts and preventing unwanted leakage paths.Low contact resistance helps reduce electrical losses at the mating interface.Actual electrical performance should be evaluated according to the applicable test method, measurement voltage, connector condition, and complete cable assembly.

14. PUR Cable and Customized Cable Assemblies

The LPIL-8-MP-IM can be integrated into underwater cable assemblies using polyurethane (PUR) cable jackets.PUR cable is commonly selected for subsea equipment because of its flexibility and suitability for demanding cable handling applications.Cable assembly requirements may include:

• Customized cable length
• Cable outer diameter
• Cable conductor specifications
• PUR cable jacket
• Cable termination requirements
• Customized pigtail assemblies
• ROV tether integration
• AUV sensor cable assemblies
• Underwater instrumentation cables
• Custom cable breakout configurations

The product specification identifies customer-specified cable outer diameter requirements.Cable length, conductor configuration, and termination details should be specified according to the equipment design.

15. Suitable for AUV and Underwater Glider Applications

Autonomous underwater vehicles and underwater gliders require compact electrical connectors that do not unnecessarily increase external dimensions or hydrodynamic resistance.The LPIL-8-MP-IM provides a low-profile eight-pin male connection option for these platforms.Typical applications include:

• AUV sensor payload connections
• Underwater glider instrumentation
• Profiling float equipment
• Oceanographic research vehicles
• Autonomous monitoring platforms
• Compact underwater measurement systems
• External sensor cable connections
• Multi-channel instrumentation

Its streamlined body is particularly useful when integrating multiple sensors and electrical connections into a limited equipment space.

16. Suitable for ROV and Subsea Instrumentation

ROV systems use various underwater electrical connectors for power distribution, sensor connections, and monitoring equipment.The LPIL-8-MP-IM provides an eight-pin male cable connector option for compatible ROV instrumentation.Typical applications include:

• ROV sensor connections
• Subsea camera systems
• Underwater lighting equipment
• ROV-mounted monitoring instruments
• Subsea control equipment
• Marine measurement systems
• Underwater inspection equipment
• ROV auxiliary electrical connections
• Multi-channel subsea instrumentation

Its low-profile construction is useful in crowded ROV frames where conventional connector bodies may interfere with adjacent equipment.

17. Oceanographic and Environmental Monitoring Applications

Oceanographic instruments require reliable underwater electrical connections for long-term data collection and environmental monitoring.The LPIL-8-MP-IM can be integrated into compatible oceanographic sensor assemblies.Typical applications include:

• CTD instruments
• Dissolved oxygen sensors
• Fluorometer sensors
• Water-quality monitoring equipment
• Turbidity measurement systems
• Oceanographic data loggers
• Environmental monitoring platforms
• Deep-sea research instruments
• Scientific landers
• Benthic observatories
• Marine measurement equipment

The eight-contact electrical interface provides multiple connection positions for compatible power, signal, and auxiliary circuits.

18. Underwater Camera and Lighting Systems

Underwater cameras and lighting systems require reliable electrical connections between external cable assemblies and subsea equipment.The LPIL-8-MP-IM provides a compact eight-contact male connection for compatible camera and lighting equipment.Typical applications include:

• Underwater inspection cameras
• Compact ROV cameras
• Subsea video systems
• Underwater LED lighting
• Marine imaging equipment
• Underwater monitoring cameras
• Camera control systems
• Subsea auxiliary power connections
• Marine inspection instruments

The eight-pin configuration provides additional connection positions for compatible systems requiring multiple electrical circuits.The connector should be selected according to the camera’s voltage, current, pin assignment, and mating interface requirements.

19. Acoustic Modems and Hydrophone Systems

Underwater acoustic communication and measurement equipment frequently requires reliable electrical connections for power and signal transmission.The LPIL-8-MP-IM can be integrated into compatible acoustic instrument cable assemblies.Typical applications include:

• Underwater acoustic modems
• Hydrophone arrays
• Acoustic measurement systems
• Subsea communication equipment
• Marine listening stations
• Underwater research instruments
• Acoustic monitoring platforms
• Multi-channel acoustic sensors

Its eight-pin configuration provides multiple electrical connection positions for compatible power, signal, and auxiliary circuits.

20. Deep-Sea Landers and Benthic Observatories

Deep-sea landers and benthic observatories use multiple underwater sensors and monitoring instruments for long-term scientific research.These systems require compact and reliable electrical connections for sensor power, data acquisition, and equipment control.The LPIL-8-MP-IM can be integrated into compatible cable assemblies for:

• Deep-sea landers
• Benthic observatories
• Oceanographic monitoring platforms
• Long-term environmental monitoring systems
• Subsea data acquisition equipment
• Scientific underwater instruments
• Marine research installations

Its low-profile body is useful for compact instrument layouts where installation space is limited.

21. OEM and Customized Subsea Cable Solutions

HYSF SUBSEA provides underwater electrical connectors, low-profile connectors, wet-pluggable cable connectors, and customized subsea cable assemblies for OEM equipment manufacturers.Engineering support can include:

• Eight-pin male in-line connectors
• Low-profile connector configurations
• Impulse-compatible connector interfaces
• Customized cable lengths
• PUR cable assemblies
• Cable outer diameter selection
• Electrical contact configuration
• Mating connector selection
• Locking sleeve selection
• 316 stainless steel hardware
• Optional titanium hardware
• Technical drawings
• Electrical testing
• Hydrostatic pressure testing
• OEM cable assembly integration

Customers can provide equipment drawings, cable specifications, operating pressure, electrical requirements, and mating connector models for engineering evaluation.

LPIL-8-MP-IM Technical Specifications

• Brand: HYSF SUBSEA
• Model: LPIL-8-MP-IM
• Connector Series: Impulse-Compatible Low Profile
• Product Type: In-Line Underwater Cable Connector
• Connector Configuration: 8-Pin Male Plug
• Number of Contacts: 8
• Contact Gender: Male Pin
• Voltage Rating: 250 V AC/DC RMS
• Current Rating: 5 A per Contact
• Insulation Resistance: Greater than 200 MΩ
• Contact Resistance: Less than 0.01 Ω
• Mated Pressure Rating: 10,000 psi / Approximately 690 bar
• Reference Mated Depth: Approximately 7,000 m
• Open-Face Pressure Rating: 7,000 psi / Approximately 480 bar
• Wet-Mate Cycles: More than 500 (Product Specification Reference)
• Body Material: Chloroprene Rubber / Neoprene
• Shell Material: 316 Stainless Steel
• Optional Hardware: Titanium
• Contact Material: Beryllium Copper / Brass
• Contact Plating: Gold-Plated
• Locking Sleeve: POM or Stainless Steel
• Sealing Material: Nitrile Rubber
• Cable Jacket: Polyurethane (PUR)
• Cable Outer Diameter: Customer-Specified
• Water Temperature: −4°C to +60°C
• Air Temperature: −40°C to +60°C
• Connector Profile: Low-Profile / Streamlined
• Connector Installation: In-Line Cable Assembly
• Mating Interface: Compatible 8-Pin Female Impulse LP Connector
• Reference Female Bulkhead: LPMBH-8-FS-IM
• Connector Type: Wet-Pluggable
• Typical Applications: AUVs, ROVs, Underwater Gliders, Oceanographic Instruments, Subsea Sensors, Underwater Cameras, and Marine Monitoring Systems

Typical Applications of LPIL-8-MP-IM

1. Autonomous Underwater Vehicles (AUVs)

AUVs require compact and reliable electrical connections for sensors, navigation systems, and external instrumentation.The LPIL-8-MP-IM provides a low-profile eight-pin male connection suitable for compatible AUV cable assemblies and sensor payloads.

2. Underwater Gliders

Underwater gliders require streamlined equipment configurations to maintain hydrodynamic efficiency.The LPIL-8-MP-IM can be used for electrical connections between glider instrumentation and external underwater cables.

3. ROV Systems

ROV platforms use multiple electrical connectors for cameras, sensors, lighting, and auxiliary instruments.The LPIL-8-MP-IM provides a compact in-line cable connection for compatible ROV equipment.

4. CTD Oceanographic Instruments

CTD instruments measure conductivity, temperature, and depth in marine research applications.The LPIL-8-MP-IM can be integrated into compatible CTD sensor cable assemblies.

5. Dissolved Oxygen Sensors

Underwater dissolved oxygen sensors require reliable power and signal connections for environmental monitoring.The eight-pin male connector provides multiple electrical connection positions for compatible sensor configurations.

6. Fluorometer Sensors

Fluorometers are widely used for underwater water-quality analysis and oceanographic research.The LPIL-8-MP-IM can be used in compatible fluorometer cable assemblies.

7. Subsea Camera Systems

Compact underwater cameras require reliable electrical connections for power and auxiliary signals.The LPIL-8-MP-IM provides a low-profile connection option for suitable subsea imaging systems.

8. Underwater Lighting Systems

Underwater LED lights and inspection lamps require dependable electrical connections in marine environments.The connector can be integrated into compatible lighting cable assemblies.

9. Hydrophone Arrays

Hydrophone systems require reliable electrical connections for underwater acoustic measurements.The LPIL-8-MP-IM provides a compact eight-contact interface for compatible acoustic instrument assemblies.

10. Underwater Acoustic Modems

Acoustic modem systems use electrical connections for power and signal interfaces.The LPIL-8-MP-IM can be used in compatible subsea communication equipment.

11. Deep-Sea Landers

Deep-sea landers use pressure-resistant electrical connections for instruments, sensors, and monitoring systems.The LPIL-8-MP-IM provides an in-line cable connector option for compatible lander instrumentation.

12. Benthic Observatories

Benthic observatories support long-term marine environmental monitoring.The connector can be integrated into compatible sensor and cable assemblies used in these scientific platforms.

13. Environmental Monitoring Systems

Marine environmental monitoring equipment requires dependable underwater connections for sensors and data acquisition systems.The LPIL-8-MP-IM can be used for compatible temperature, dissolved oxygen, turbidity, and other monitoring instruments.

14. Profiling Floats

Profiling floats require compact electrical connections for underwater measurement and data collection systems.The low-profile connector configuration is suitable for compatible instrument and sensor assemblies.

15. Offshore Subsea Instrumentation

Offshore monitoring equipment requires reliable electrical connections for underwater sensors and instrumentation.The LPIL-8-MP-IM provides a compact wet-pluggable connection option for compatible subsea equipment.

16. Marine Defence and Research Systems

Marine defence and research equipment often requires compact underwater electrical connectors for sensor integration, instrumentation, and subsea monitoring.The LPIL-8-MP-IM can be considered for compatible underwater equipment requiring an eight-contact low-profile electrical interface.

LPIL-8-MP-IM vs LPIL-7-MP-IM

Both connectors belong to the Impulse-compatible Low Profile In-Line connector family, but they have different contact quantities.

LPIL-8-MP-IM

• Eight Male Pin Contacts
• In-Line Cable Connector
• Male Plug Configuration
• Low-Profile Body Design
• 250 V AC/DC RMS Reference Voltage
• 5 A per Contact Reference Current
• 10,000 psi Mated Pressure Rating
• 7,000 psi Open-Face Pressure Reference
• Suitable for Eight-Circuit Electrical Configurations
• Suitable for Multi-Channel Instrumentation

LPIL-7-MP-IM

• Seven Male Pin Contacts
• In-Line Cable Connector
• Male Plug Configuration
• Low-Profile Body Design
• Impulse-compatible Connection Interface
• Suitable for Seven-Contact Electrical Configurations
• Suitable for AUVs, ROVs, and Marine Instrumentation

The LPIL-8-MP-IM provides one additional electrical contact position compared with the LPIL-7-MP-IM.The correct model should be selected according to the required number of electrical circuits, contact arrangement, and mating connector configuration.

LPIL-8-MP-IM vs Standard Micro Circular Underwater Connectors

The LPIL-8-MP-IM and conventional Micro Circular underwater connectors serve different equipment integration requirements.

LPIL-8-MP-IM Low Profile Connector

• Flat and streamlined body design
• Eight male pin contacts
• In-line cable connector configuration
• Wet-pluggable connection
• 250 V AC/DC RMS reference voltage
• 5 A per contact reference current
• 10,000 psi mated pressure rating
• Designed for low-profile equipment integration
• Suitable for AUVs and underwater gliders
• Suitable for drag-sensitive platforms
• Impulse-compatible mechanical interface

Standard Micro Circular Connector

• Cylindrical circular body design
• Multiple contact configurations
• In-line and bulkhead mounting options
• Compact circular connection interface
• Suitable for ROVs, AUVs, and subsea sensors
• Different electrical and pressure ratings depending on configuration

The LPIL-8-MP-IM is particularly suitable when a low-profile connector geometry is required to minimize external projection and hydrodynamic interference.Conventional Micro Circular connectors may be preferable when a cylindrical interface, different contact density, or alternative pressure and current requirements are needed.

Installation, Mating and Maintenance Guidelines

1. Pre-Deployment Inspection

Inspect all eight male pin contacts for contamination, corrosion, deformation, or foreign particles.Check the molded rubber body for visible cracks, cuts, or surface deterioration.

2. Inspect O-Ring Seals

Inspect the O-ring sealing surfaces and nitrile rubber sealing elements for cuts, wear, or deformation.Replace damaged sealing components before deployment.

3. Clean the Connector Interface

Ensure that the mating surfaces are clean before connection.Use appropriate cleaning procedures recommended by the connector manufacturer.

4. Apply Suitable Lubrication

Apply compatible lubricant to the designated sealing surfaces when required by the manufacturer’s instructions.Avoid contaminating the electrical contact surfaces.

5. Align the Connector

Align the eight-pin male connector with the corresponding eight-socket female connector.Ensure that the keying and contact positions are correctly aligned before mating.

6. Complete the Mating Operation

Insert the male plug into the female connector using the approved mating procedure.Do not force the connector or apply excessive side loads during mating.

7. Install the Locking Sleeve

Install the compatible POM or stainless steel locking sleeve.Verify that the locking mechanism is fully engaged before underwater deployment.

8. Perform Electrical Testing

Verify electrical continuity, contact resistance, and insulation resistance according to the applicable project requirements.

9. Perform Pressure Testing

Test the complete connector and cable assembly according to the approved hydrostatic pressure qualification procedure.

10. Post-Deployment Maintenance

After exposure to seawater, rinse the connector exterior with fresh water according to the manufacturer’s maintenance instructions.Inspect the rubber body, cable termination, contacts, and sealing surfaces before subsequent use.Store the connector with an appropriate protective dummy plug installed when required.

Quality Control and Testing

Depending on the approved HYSF configuration and project requirements, quality-control procedures may include:

• Visual inspection
• Dimensional inspection
• Connector body inspection
• Contact position verification
• Contact plating inspection
• Electrical continuity testing
• Contact resistance testing
• Insulation resistance testing
• Mating compatibility testing
• Locking sleeve inspection
• O-ring inspection
• Cable termination inspection
• Cable pull testing where specified
• Hydrostatic pressure testing
• Post-pressure electrical performance verification
• Final product inspection

Electrical test reports, dimensional inspection reports, and hydrostatic pressure test documentation can be provided according to agreed project requirements.

Frequently Asked Questions

Q1: What is the LPIL-8-MP-IM connector?

The LPIL-8-MP-IM is an eight-pin male in-line underwater connector from the Impulse-compatible Low Profile Wet-Pluggable Connector Series.It is designed for subsea cable assemblies, AUVs, ROVs, underwater gliders, and oceanographic instruments.

Q2: How many contacts does the LPIL-8-MP-IM have?

The LPIL-8-MP-IM features eight male electrical pin contacts.

Q3: What is the voltage rating?

The reference voltage rating is 250 V AC/DC RMS.

Q4: What is the current rating?

The reference current rating is 5 A per contact.The total allowable current of the complete connector and cable assembly depends on simultaneous electrical loading and thermal derating requirements.

Q5: What is the pressure rating?

The reference mated pressure rating is 10,000 psi, approximately 690 bar.The product specification also identifies an open-face pressure rating of 7,000 psi, approximately 480 bar.

Q6: Is the LPIL-8-MP-IM a wet-mate connector?

Yes. It belongs to the Impulse-compatible Low Profile Wet-Pluggable Connector Series and is designed for underwater mating applications.

Q7: What is the connector body material?

The connector features a molded Chloroprene Rubber / Neoprene body.

Q8: What material is used for the connector shell?

The reference product specification identifies 316 stainless steel hardware, with titanium available as an optional material.

Q9: What type of contacts does the connector use?

The LPIL-8-MP-IM features eight male pin contacts with gold-plated contact surfaces.The reference contact materials include beryllium copper and brass.

Q10: How many mating cycles does the connector support?

The available product specification lists more than 500 wet-mating cycles.Actual service life depends on the operating environment, maintenance, and correct mating procedures.

Q11: Does the connector require a locking sleeve?

Yes. A compatible POM or stainless steel locking sleeve should be installed before deployment to help prevent accidental disconnection.

Q12: Which connector is compatible with the LPIL-8-MP-IM?

The LPIL-8-MP-IM is designed for dimensional compatibility with corresponding eight-contact Teledyne Impulse Low Profile connector hardware.The LPMBH-8-FS-IM is a reference eight-pin female bulkhead counterpart. Verify the exact mating interface before ordering.

Q13: Does the LPIL-8-MP-IM include a cable?

The LPIL-8-MP-IM is an in-line cable connector configuration. Cable length, cable type, outer diameter, and termination arrangement should be specified according to the selected assembly.

Q14: What cable material is available?

The reference product specification identifies a polyurethane (PUR) cable jacket. Cable outer diameter can be specified according to the application.

Q15: Is the LPIL-8-MP-IM suitable for AUV applications?

Yes. Its low-profile construction makes it suitable for compatible AUV sensor payloads, underwater gliders, and compact oceanographic instrument assemblies.

Q16: Can the LPIL-8-MP-IM be used for ROV systems?

Yes. It can be used for compatible ROV-mounted sensors, underwater cameras, lighting equipment, and auxiliary instrumentation.

Q17: Can titanium hardware be supplied?

Titanium hardware is listed as an optional material in the reference product specification. Availability should be confirmed for the selected configuration.

Q18: Can customized cable lengths be supplied?

Yes. Cable length, outer diameter, cable jacket, and termination requirements can be specified according to the equipment design and cable assembly requirements.

Q19: Can hydrostatic pressure test reports be supplied?

Hydrostatic pressure testing and corresponding documentation can be arranged according to agreed project requirements.

Why Choose HYSF SUBSEA LPIL-8-MP-IM?

The HYSF SUBSEA LPIL-8-MP-IM Impulse Low Profile In-Line 8-Pin Male Plug Underwater Connector provides a compact and reliable electrical connection solution for demanding marine and subsea applications.Its principal features include:

• Eight male electrical pin contacts
• In-line cable connector configuration
• Low-profile streamlined body design
• Reduced external projection and hydrodynamic resistance
• Impulse-compatible mechanical interface
• Molded Chloroprene Rubber / Neoprene body
• 316 stainless steel shell
• Optional titanium hardware
• Gold-plated electrical contacts
• 250 V AC/DC RMS reference voltage rating
• 5 A per contact reference current rating
• 10,000 psi mated pressure rating
• 7,000 psi open-face pressure reference
• More than 500 wet-mating cycles reference
• POM or stainless steel locking sleeve options
• Nitrile rubber sealing elements
• PUR underwater cable assembly options
• Suitable for AUV and underwater glider integration
• Suitable for ROV sensor and camera systems
• Suitable for oceanographic instruments
• Suitable for subsea environmental monitoring
• Customized underwater cable assembly solutions
• OEM engineering and manufacturing support

For AUV manufacturers, ROV system integrators, oceanographic research institutions, underwater instrumentation suppliers, and offshore engineering contractors, the LPIL-8-MP-IM provides a practical eight-pin male low-profile underwater connector solution.Contact HYSF SUBSEA for product specifications, technical drawings, compatible female connectors, locking sleeve options, customized cable assemblies, and quotations for the LPIL-8-MP-IM Impulse Low Profile In-Line 8-Pin Male Plug Connector.