{"id":1327,"date":"2026-01-22T02:53:50","date_gmt":"2026-01-22T02:53:50","guid":{"rendered":"https:\/\/hysfsubsea.com\/?post_type=product&p=1327"},"modified":"2026-10-24T05:39:41","modified_gmt":"2026-10-24T05:39:41","slug":"mcil8m-8-pin-male-inline-underwater-connector","status":"publish","type":"product","link":"https:\/\/hysfsubsea.com\/ja\/product\/mcil8m-8-pin-male-inline-underwater-connector\/","title":{"rendered":"MCIL8M 8-Pin Male Inline Underwater Connector \u2013 SubConn-Compatible Micro Circular | HYSF SUBSEA"},"content":{"rendered":"

MCIL8M 8-Pin Male Inline Underwater Connector \u2013 SubConn-Compatible Micro Circular Connector<\/h2>\n

The HYSF SUBSEA MCIL8M 8-Pin Male Inline Underwater Connector<\/strong> is a compact, high-performance, wet-mateable electrical connector designed for reliable power and signal transmission in demanding marine and subsea environments. Featuring eight male electrical contacts within a miniature circular housing, the MCIL8M provides an efficient underwater connection solution for applications requiring multiple electrical circuits in limited installation space.<\/p>\n

Manufactured by HYSF SUBSEA<\/strong>, the MCIL8M is suitable for remotely operated vehicles (ROVs), autonomous underwater vehicles (AUVs), underwater cameras, subsea sensors, oceanographic instruments, marine monitoring systems, and offshore engineering equipment.<\/p>\n

The connector is designed for underwater applications up to 6,000 meters (60 MPa)<\/strong> when used in a correctly configured and qualified mating assembly. Its wet-mateable interface supports underwater connection and disconnection when the appropriate operating and safety procedures are followed.<\/p>\n

The MCIL8M is designed to mate with corresponding 8-pin female Micro Circular underwater connectors, including the MCBH8F female bulkhead connector<\/strong> and MCIL8F female inline connector<\/strong>.<\/p>\n

The connector is also designed for mating compatibility with corresponding MacArtney SubConn and SEACON Micro Circular interfaces, making it a practical alternative for underwater equipment manufacturers and subsea system integrators.<\/p>\n

Key Features and Benefits<\/h3>\n

1. Compact 8-Pin Micro Circular Design<\/h4>\n

The MCIL8M features eight male electrical contacts arranged within a compact Micro Circular housing.<\/p>\n

This configuration provides higher contact density than the 2-pin, 3-pin, 4-pin, 5-pin, and 6-pin variants in the same Micro Circular series.<\/p>\n

Its compact structure is especially beneficial for underwater equipment where space and weight are important considerations.<\/p>\n

The eight-contact arrangement enables multiple suitable electrical circuits to be combined into a single underwater connection, reducing the need for additional connectors.<\/p>\n

Typical applications include ROV sensor systems, AUV instrumentation, underwater cameras, marine monitoring equipment, and subsea control modules.<\/p>\n

2. SubConn-Compatible Underwater Connector<\/h4>\n

The HYSF SUBSEA MCIL8M is designed for mating compatibility with corresponding SubConn Micro Circular 8-pin female connector interfaces.<\/p>\n

This compatibility allows customers to consider HYSF products for replacement applications, equipment maintenance, and new underwater system designs.<\/p>\n

The connector is also designed for use with corresponding SEACON-style Micro Circular interfaces, subject to verification of the exact mating configuration.<\/p>\n

HYSF SUBSEA manufactures compatible underwater connectors independently. The MCIL8M is not an original MacArtney SubConn or SEACON-branded product.<\/p>\n

3. Wet-Mateable Underwater Connection<\/h4>\n

The MCIL8M belongs to the HYSF SUBSEA wet-mateable Micro Circular connector series.<\/p>\n

Wet-mateable connectors are designed to support mating and unmating in underwater environments when operated according to the specified procedures.<\/p>\n

This capability is particularly useful for modular underwater equipment, subsea sensor replacement, ROV maintenance, and marine instrumentation systems.<\/p>\n

Electrical circuits should be de-energized before mating or unmating unless a specific live-mating procedure and rating have been approved.<\/p>\n

4. Deepwater Pressure Resistance<\/h4>\n

The HYSF SUBSEA Micro Circular connector series is designed for underwater applications up to 6,000 meters, corresponding to approximately 60 MPa of hydrostatic pressure.<\/p>\n

When paired with a compatible female connector and correctly secured, the MCIL8M provides a suitable electrical interface for deepwater applications.<\/p>\n

The pressure capability of the complete assembly depends on the connector configuration, cable termination, mating interface, and installation conditions.<\/p>\n

5. Durable Marine-Resistant Construction<\/h4>\n

The MCIL8M features a protective molded connector body designed for marine environments.<\/p>\n

Its molded construction helps protect the cable termination area and provides mechanical support between the connector and cable.<\/p>\n

Gold-plated male electrical contacts support stable electrical performance and help resist contact-surface corrosion during normal service.<\/p>\n

The compact construction is suitable for equipment that undergoes repeated handling during deployment, inspection, maintenance, and recovery.<\/p>\n

6. Eight Electrical Contacts for Power and Signals<\/h4>\n

The MCIL8M provides eight electrical contacts for applications requiring multiple low-power or signal circuits.<\/p>\n

The standard HYSF SUBSEA Micro Circular 8-pin series has a nominal current rating of 5 A per contact<\/strong>, subject to the selected cable and operating conditions.<\/p>\n

The eight contacts may be assigned to suitable sensor power, control signals, instrumentation circuits, or communication interfaces.<\/p>\n

Wiring assignments should always be verified against the approved pinout drawing before production.<\/p>\n

\u6280\u8853\u4ed5\u69d8<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\n\u4ed5\u69d8<\/th>\n<\/tr>\n
Manufacturer<\/td>\nHYSF SUBSEA<\/td>\n<\/tr>\n
Model Number<\/td>\nMCIL8M<\/td>\n<\/tr>\n
Product Type<\/td>\nUnderwater Inline Cable Connector<\/td>\n<\/tr>\n
Connector Series<\/td>\nMicro Circular<\/td>\n<\/tr>\n
\u30b3\u30f3\u30bf\u30af\u30c8\u6570<\/td>\n8-Pin<\/td>\n<\/tr>\n
Contact Gender<\/td>\nMale<\/td>\n<\/tr>\n
Compatible Connector Gender<\/td>\nFemale<\/td>\n<\/tr>\n
Compatible HYSF Models<\/td>\nMCBH8F, MCIL8F<\/td>\n<\/tr>\n
Protective Dummy Connector<\/td>\nMCDC8F<\/td>\n<\/tr>\n
SubConn Compatibility<\/td>\nMicro Circular 8-Pin Female Interface<\/td>\n<\/tr>\n
Mating Type<\/td>\nWet-Mateable<\/td>\n<\/tr>\n
Standard Cable Length<\/td>\n1 Meter<\/td>\n<\/tr>\n
Custom Cable Length<\/td>\nAvailable Upon Request<\/td>\n<\/tr>\n
Contact Material<\/td>\nGold-Plated Metal Contacts<\/td>\n<\/tr>\n
Rated Current<\/td>\n5 A per Contact, Standard Series<\/td>\n<\/tr>\n
Operating Depth<\/td>\nUp to 6,000 Meters<\/td>\n<\/tr>\n
Pressure Rating<\/td>\nUp to 60 MPa<\/td>\n<\/tr>\n
Waterproof Design<\/td>\nIP68, When Correctly Mated<\/td>\n<\/tr>\n
Primary Function<\/td>\nUnderwater Power and Signal Transmission<\/td>\n<\/tr>\n
Typical Applications<\/td>\nROV, AUV, Sensors, Cameras, Marine Instrumentation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Technical Note:<\/strong> Electrical ratings, cable specifications, wiring arrangements, and pressure performance should be verified against the approved product configuration and technical drawing before ordering.<\/p>\n

Compatible Underwater Connectors<\/h3>\n

The MCIL8M is designed for use with corresponding 8-pin female Micro Circular underwater connectors.<\/p>\n

MCBH8F \u2013 8-Pin Female Bulkhead Connector<\/h4>\n

The HYSF MCBH8F is a female bulkhead-mounted underwater connector commonly installed on pressure housings, subsea junction boxes, underwater camera systems, and marine electronic enclosures.<\/p>\n

When paired with the MCIL8M male inline connector, it provides a detachable electrical interface between an external underwater cable assembly and equipment-mounted electronics.<\/p>\n

Typical applications include:<\/p>\n

    \n
  • ROV electrical systems<\/li>\n
  • Underwater camera housings<\/li>\n
  • AUV sensor modules<\/li>\n
  • Subsea junction boxes<\/li>\n
  • Marine monitoring equipment<\/li>\n
  • Oceanographic instruments<\/li>\n<\/ul>\n

    MCIL8F \u2013 8-Pin Female Inline Connector<\/h4>\n

    The HYSF MCIL8F is a female inline underwater cable connector designed to mate with the MCIL8M.<\/p>\n

    Together, these connectors can form detachable underwater cable-to-cable assemblies.<\/p>\n

    This configuration is suitable for subsea cable extensions, modular underwater equipment, instrumentation connections, and applications requiring removable cable sections.<\/p>\n

    MCDC8F \u2013 Female Protective Dummy Plug<\/h4>\n

    The HYSF MCDC8F is a female dummy connector designed to protect compatible 8-pin male Micro Circular mating interfaces.<\/p>\n

    When the MCIL8M is disconnected from its working female connector, the MCDC8F can help protect its exposed male contacts against contamination and mechanical damage.<\/p>\n

    This is particularly useful during transportation, storage, equipment maintenance, and deployment preparation.<\/p>\n

    Typical Applications of the MCIL8M Underwater Connector<\/h3>\n

    1. Remotely Operated Vehicles (ROVs)<\/h4>\n

    ROVs require reliable underwater electrical connections for cameras, sensors, navigation equipment, lighting, control circuits, and auxiliary systems.<\/p>\n

    The MCIL8M provides eight contacts within a compact connector, allowing multiple suitable electrical functions to share one underwater interface.<\/p>\n

    Its miniature construction makes it especially useful for observation-class ROVs and compact underwater robotic platforms.<\/p>\n

    2. Autonomous Underwater Vehicles (AUVs)<\/h4>\n

    AUVs frequently incorporate environmental sensors, navigation instruments, monitoring electronics, and communication equipment within limited installation space.<\/p>\n

    The MCIL8M provides a compact underwater cable interface suitable for compatible electrical modules.<\/p>\n

    Its eight-contact configuration can reduce the number of separate connectors required for suitable multi-circuit applications.<\/p>\n

    3. Underwater Cameras and Imaging Systems<\/h4>\n

    Underwater imaging equipment often requires connections for electrical power, control signals, and auxiliary functions.<\/p>\n

    The MCIL8M can be incorporated into suitable cable assemblies connecting underwater cameras and observation systems to their control electronics.<\/p>\n

    The electrical configuration must be selected according to the voltage, current, and signal requirements of the connected equipment.<\/p>\n

    4. Oceanographic Research Equipment<\/h4>\n

    Oceanographic instruments operate in demanding marine environments where dependable electrical connections are important.<\/p>\n

    The MCIL8M is suitable for applications involving environmental monitoring sensors, underwater data loggers, marine research platforms, and oceanographic instruments.<\/p>\n

    Its compact design is particularly beneficial for equipment where installation space is restricted.<\/p>\n

    5. Subsea Junction Boxes and Instrumentation<\/h4>\n

    Subsea junction boxes distribute electrical power and signals between underwater devices.<\/p>\n

    The MCIL8M can provide a detachable connection to compatible female interfaces, supporting modular underwater system designs.<\/p>\n

    This can simplify cable replacement and maintenance when equipment modules require servicing.<\/p>\n

    Underwater Communication and Signal Applications<\/h3>\n

    The MCIL8M provides eight electrical contacts that may be used for suitable communication and control circuits.<\/p>\n

    Depending on the cable configuration, applications may include:<\/p>\n

      \n
    • Low-voltage sensor signals<\/li>\n
    • Digital control circuits<\/li>\n
    • Serial communication interfaces<\/li>\n
    • Instrumentation connections<\/li>\n
    • Suitable Ethernet communication systems<\/li>\n
    • Combined low-power and signal circuits<\/li>\n<\/ul>\n

      However, communication performance depends on more than connector contact count.<\/p>\n

      For example, 100BASE-TX Ethernet requires two properly arranged twisted pairs<\/strong>, while 1000BASE-T requires four suitable twisted pairs<\/strong> and a qualified transmission path.<\/p>\n

      Customers requiring Ethernet communication should specify the desired data rate, cable construction, shielding, pair assignments, and cable length.<\/p>\n

      The standard MCIL8M should not be assumed to provide a particular Ethernet data rate without verification of the complete cable assembly and system requirements.<\/p>\n

      Cable Length and Customization Options<\/h3>\n

      The standard HYSF SUBSEA MCIL8M inline underwater connector is normally supplied with a 1-meter cable<\/strong>.<\/p>\n

      Other cable lengths may be specified according to customer requirements.<\/p>\n

      Common configurations include:<\/p>\n

        \n
      • MCIL8M with 1-meter cable<\/li>\n
      • MCIL8M with 2-meter cable<\/li>\n
      • MCIL8M with 3-meter cable<\/li>\n
      • MCIL8M with 5-meter cable<\/li>\n
      • MCIL8M with 10-meter cable<\/li>\n
      • Customized underwater cable assemblies<\/li>\n<\/ul>\n

        HYSF SUBSEA can review project-specific requirements for:<\/p>\n

          \n
        • Cable outer diameter<\/li>\n
        • Conductor cross-sectional area<\/li>\n
        • Cable jacket material<\/li>\n
        • Cable flexibility<\/li>\n
        • Shielding arrangements<\/li>\n
        • Wiring assignments and pin configuration<\/li>\n
        • Connector-to-connector cable assemblies<\/li>\n
        • Custom cable lengths for OEM applications<\/li>\n<\/ul>\n

          For example, the MCIL8M can be incorporated into a customized underwater cable assembly with an MCIL8F female connector at the opposite end.<\/p>\n

          Cable specifications should be selected according to the electrical load, signal requirements, operating pressure, and installation conditions.<\/p>\n

          Installation and Mating Recommendations<\/h3>\n

          Proper installation is essential for reliable underwater connector performance.<\/p>\n

          Step 1: Confirm Connector Compatibility<\/strong><\/p>\n

          Verify that the mating connector is a compatible 8-pin female Micro Circular connector.<\/p>\n

          Step 2: Inspect the Connector Interface<\/strong><\/p>\n

          Check the male electrical contacts, molded body, and mating surfaces for visible damage or contamination.<\/p>\n

          Step 3: Verify the Wiring Configuration<\/strong><\/p>\n

          Confirm the pin numbering, conductor assignments, and electrical requirements using the approved wiring diagram.<\/p>\n

          Step 4: Follow Approved Mating Procedures<\/strong><\/p>\n

          Align the connector correctly and follow the applicable cleaning, lubrication, and mating instructions.<\/p>\n

          Do not force the connector into position.<\/p>\n

          Step 5: Secure the Connection<\/strong><\/p>\n

          Use the appropriate Micro Circular locking sleeve or specified retention accessory.<\/p>\n

          Secure mechanical retention is important for underwater applications involving vibration, movement, and handling loads.<\/p>\n

          Step 6: Protect Disconnected Connectors<\/strong><\/p>\n

          When the MCIL8M is not connected to its mating female connector, a compatible protective dummy plug such as the MCDC8F should be used where required.<\/p>\n

          Why Choose HYSF SUBSEA?<\/h3>\n

          HYSF SUBSEA<\/strong> specializes in manufacturing underwater electrical connectors, subsea cable assemblies, bulkhead connectors, and customized marine interconnection solutions.<\/p>\n

          Our Micro Circular underwater connector series supports applications requiring compact dimensions, reliable electrical connections, and high-pressure resistance.<\/p>\n

          Our capabilities include:<\/p>\n

            \n
          • SubConn-compatible Micro Circular connectors<\/li>\n
          • Male and female underwater inline connectors<\/li>\n
          • Underwater bulkhead connectors<\/li>\n
          • Custom cable lengths and wiring configurations<\/li>\n
          • Waterproof cable assemblies for ROV and AUV systems<\/li>\n
          • Connector locking sleeves and protective dummy plugs<\/li>\n
          • OEM and ODM underwater connector manufacturing<\/li>\n
          • Hydrostatic pressure testing and quality inspection<\/li>\n
          • Technical assistance with underwater connector selection<\/li>\n<\/ul>\n

            HYSF SUBSEA supports underwater equipment manufacturers, marine engineering companies, ROV developers, AUV manufacturers, and oceanographic research organizations.<\/p>\n

            Frequently Asked Questions (FAQ)<\/h3>\n

            Q1: What is the MCIL8M underwater connector?<\/h4>\n

            The MCIL8M is an 8-pin male inline underwater electrical connector from the HYSF SUBSEA Micro Circular series.<\/p>\n

            It is designed for detachable underwater power and signal connections in marine and subsea applications.<\/p>\n

            Q2: Is the MCIL8M compatible with SubConn connectors?<\/h4>\n

            Yes. The HYSF SUBSEA MCIL8M is designed for compatibility with corresponding SubConn Micro Circular 8-pin female connector interfaces.<\/p>\n

            Customers should verify the exact mating configuration before installation.<\/p>\n

            Q3: Which connectors can mate with MCIL8M?<\/h4>\n

            The MCIL8M is designed to mate with compatible 8-pin female Micro Circular connectors, including the HYSF MCBH8F female bulkhead connector and MCIL8F female inline connector.<\/p>\n

            Q4: Is the MCIL8M wet-mateable?<\/h4>\n

            Yes. The MCIL8M belongs to the HYSF SUBSEA wet-mateable Micro Circular connector series.<\/p>\n

            Underwater mating and unmating should follow the specified operating procedures and electrical safety requirements.<\/p>\n

            Q5: What is the standard cable length?<\/h4>\n

            The standard MCIL8M inline connector is normally supplied with a 1-meter cable.<\/p>\n

            Other cable lengths may be specified according to project requ<\/p>","protected":false},"excerpt":{"rendered":"

            The HYSF SUBSEA MCIL8M<\/strong> is a SubConn-compatible 8-pin male inline underwater connector designed for reliable power and signal transmission in demanding marine environments.<\/p>\n

            Featuring a compact wet-mateable Micro Circular interface, gold-plated contacts, and a durable molded body, the MCIL8M supports underwater applications up to 6,000 meters (60 MPa).<\/p>\n

            Compatible with MCBH8F and MCIL8F female connectors, it is ideal for ROVs, AUVs, underwater cameras, subsea sensors, and oceanographic instrumentation.<\/p>\n

            Key Features:<\/strong><\/p>\n

              \n
            • 8-pin male Micro Circular inline connector<\/li>\n
            • SubConn-compatible mating interface<\/li>\n
            • Wet-mateable underwater design<\/li>\n
            • 5 A nominal current rating per contact<\/li>\n
            • Designed for depths up to 6,000 m (60 MPa)<\/li>\n
            • Standard 1-meter cable<\/li>\n
            • Custom cable lengths available<\/li>\n
            • Compatible with MCBH8F and MCIL8F<\/li>\n
            • Suitable for underwater power and signal connections<\/li>\n<\/ul>","protected":false},"featured_media":8592,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[30],"product_cat":[31],"product_tag":[],"class_list":["post-1327","product","type-product","status-publish","has-post-thumbnail","product_brand-hysf","product_cat-miniature-circular-connectors","pa_body-material-neoprene-rubber-standard","pa_connector-type-cable-plug","pa_electrical-rating-550v-10a","pa_mounting-thread-7-16-20-unf","pa_number-of-contacts-8-pin","pa_series-miniature-series","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product\/1327","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/comments?post=1327"}],"version-history":[{"count":3,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product\/1327\/revisions"}],"predecessor-version":[{"id":9209,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product\/1327\/revisions\/9209"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/media\/8592"}],"wp:attachment":[{"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/media?parent=1327"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product_brand?post=1327"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product_cat?post=1327"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product_tag?post=1327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}