{"id":4412,"date":"2026-03-10T06:11:08","date_gmt":"2026-03-10T06:11:08","guid":{"rendered":"https:\/\/hysfsubsea.com\/knowledge-base\/split-multi-flap-connectors-complete-guide-to-24-core-underwater-connections\/"},"modified":"2026-03-10T06:11:08","modified_gmt":"2026-03-10T06:11:08","slug":"split-multi-flap-connectors-complete-guide-to-24-core-underwater-connections","status":"publish","type":"knowledge-base","link":"https:\/\/hysfsubsea.com\/de\/knowledge-base\/split-multi-flap-connectors-complete-guide-to-24-core-underwater-connections\/","title":{"rendered":"Split Multi-Flap-Verbindungen: Vollst\u00e4ndiger Leitfaden f\u00fcr 24-polige Unterwasser-Verbindungen"},"content":{"rendered":"

Quick Answer:<\/strong> HYSF SF (Split Flap) series multi-flap connectors offer 12-24 core underwater connectivity with innovative split-flap design for easy termination. The 3-flap configuration (SF-24-3AW) provides organized wire management (8 conductors per flap), faster installation (40-60% time savings), and superior sealing. Ideal for energy industry, ROV systems, and multi-sensor arrays. Standard delivery is 3-5 days for samples, 10-15 days for bulk orders.<\/p>\n\n\n\n

Detailed Explanation<\/h2>\n\n\n\n

Multi-core underwater connectors present unique challenges: managing numerous wires, ensuring reliable sealing, and enabling field serviceability. HYSF’s split-flap design addresses these challenges with an innovative approach that simplifies termination while maintaining superior underwater performance.<\/p>\n\n\n\n

What Are Split-Flap Connectors?<\/h3>\n\n\n\n

Split-flap connectors feature multiple independently opening sections (flaps) that provide organized access to internal contacts:<\/p>\n\n\n\n

    \n
  • Traditional Design:<\/strong> All wires must be threaded through a single opening<\/li>\n
  • Split-Flap Design:<\/strong> Multiple flaps open independently (2-flap, 3-flap configurations)<\/li>\n
  • Benefit:<\/strong> Each flap manages a subset of conductors (e.g., 8 wires per flap in 24-core system)<\/li>\n<\/ul>\n\n\n\n

    SF Series Product Line<\/h3>\n\n\n\n
    Model<\/th>Total Cores<\/th>Flap Count<\/th>Cores per Flap<\/th>Am besten f\u00fcr<\/th><\/tr><\/thead>
    SF-12-2AW-DC<\/td>12 cores<\/td>2 flaps<\/td>6 cores\/flap<\/td>Medium-density connections<\/td><\/tr>
    SF-16-3AW-DC<\/td>16 cores<\/td>3 flaps<\/td>5-6 cores\/flap<\/td>Multi-sensor arrays<\/td><\/tr>
    SF-24-3AW-DC<\/td>24 cores<\/td>3 flaps<\/td>8 cores\/flap<\/td>High-density power\/data (most popular)<\/td><\/tr>
    SF-36-4AW-DC<\/td>36 cores<\/td>4 flaps<\/td>9 cores\/flap<\/td>Very high-density systems<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Key Advantages of Split-Flap Design<\/h3>\n\n\n\n

    1. Organized Wire Management<\/h4>\n\n\n\n

    With 24 conductors to terminate, organization is critical:<\/p>\n\n\n\n

      \n
    • Grouped Conductors:<\/strong> 8 wires per flap (for SF-24-3AW)<\/li>\n
    • Color Coding:<\/strong> Easy to label and identify by flap<\/li>\n
    • Reduced Tangling:<\/strong> Work on one section at a time<\/li>\n
    • Clear Access:<\/strong> Each flap provides unobstructed access to its contacts<\/li>\n<\/ul>\n\n\n\n

      2. Faster Termination<\/h4>\n\n\n\n

      Time savings compared to traditional multi-core connectors:<\/p>\n\n\n\n

        \n
      • Traditional:<\/strong> Thread all 24 wires through single opening (time-consuming)<\/li>\n
      • Split-Flap:<\/strong> Open flap, terminate 8 wires, close flap (repeat 3x)<\/li>\n
      • Time Savings:<\/strong> 40-60% reduction in termination time<\/li>\n
      • Error Reduction:<\/strong> Less chance of wiring mistakes<\/li>\n<\/ul>\n\n\n\n

        3. Superior Sealing<\/h4>\n\n\n\n

        Multiple sealing points provide enhanced protection:<\/p>\n\n\n\n

          \n
        • Flap Seals:<\/strong> Individual O-ring seal on each flap<\/li>\n
        • Body Seal:<\/strong> Main connector body seal<\/li>\n
        • Cable Entry Seals:<\/strong> Individual cable gland seals<\/li>\n
        • Redundancy:<\/strong> Multiple barriers against water ingress<\/li>\n<\/ul>\n\n\n\n

          4. Field Serviceability<\/h4>\n\n\n\n

          Easy maintenance and repair in the field:<\/p>\n\n\n\n

            \n
          • Individual Flap Access:<\/strong> Open only the flap needing service<\/li>\n
          • Partial Re-termination:<\/strong> Replace damaged wires without full rework<\/li>\n
          • Inspection:<\/strong> Visual inspection of contacts without full disassembly<\/li>\n
          • Testing:<\/strong> Test individual flaps independently<\/li>\n<\/ul>\n\n\n\n

            Technische Daten<\/h3>\n\n\n\n
            Specification<\/th>SF-24-3AW-DC<\/th><\/tr><\/thead>
            Pin Count<\/strong><\/td>24 cores (arranged in 3 flaps \u00d7 8 cores)<\/td><\/tr>
            Current Rating<\/strong><\/td>5-10A per contact (depends on wire gauge)<\/td><\/tr>
            Voltage Rating<\/strong><\/td>Up to 300V<\/td><\/tr>
            Insulation Resistance<\/strong><\/td>\u22651000 M\u03a9 @ 500V DC<\/td><\/tr>
            Contact Resistance<\/strong><\/td>\u226410 m\u03a9<\/td><\/tr>
            Tiefe Bewertung<\/strong><\/td>100m, 300m, 1000m (standard), custom to 3000m<\/td><\/tr>
            Material des Geh\u00e4uses<\/strong><\/td>Engineering plastic (POM) with stainless steel reinforcement<\/td><\/tr>
            Sealing<\/strong><\/td>IP68, Viton O-rings on flaps and body<\/td><\/tr>
            Temperaturbereich<\/strong><\/td>-40\u00b0C to +85\u00b0C<\/td><\/tr>
            Cable Entry<\/strong><\/td>3 entries (one per flap), 6-12mm OD per entry<\/td><\/tr>
            Termination<\/strong><\/td>Solder cup or crimp contacts<\/td><\/tr>
            Mating Cycles<\/strong><\/td>500+ cycles (tested)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

            Typical Applications<\/h3>\n\n\n\n

            Energy Industry<\/h4>\n\n\n\n
              \n
            • Oil & Gas:<\/strong> Subsea wellhead monitoring, underwater production systems<\/li>\n
            • Renewable Energy:<\/strong> Offshore wind farms, tidal\/wave energy systems<\/li>\n
            • Power Distribution:<\/strong> Subsea electrical grids, junction boxes<\/li>\n<\/ul>\n\n\n\n

              ROV\/AUV Systems<\/h4>\n\n\n\n
                \n
              • Tooling Interfaces:<\/strong> Multi-function ROV tools<\/li>\n
              • Sensor Arrays:<\/strong> Multi-beam sonar, camera systems<\/li>\n
              • Power Distribution:<\/strong> ROV power management systems<\/li>\n<\/ul>\n\n\n\n

                Scientific Research<\/h4>\n\n\n\n
                  \n
                • Oceanographic Instruments:<\/strong> CTD arrays, water samplers<\/li>\n
                • Seafloor Observatories:<\/strong> Long-term monitoring stations<\/li>\n
                • Hydrophone Arrays:<\/strong> Multi-channel acoustic monitoring<\/li>\n<\/ul>\n\n\n\n

                  Industrial Applications<\/h4>\n\n\n\n
                    \n
                  • Underwater Welding:<\/strong> Multi-power conductor connections<\/li>\n
                  • Aquaculture:<\/strong> Fish farm monitoring systems<\/li>\n
                  • Subsea Construction:<\/strong> Temporary power\/data connections<\/li>\n<\/ul>\n\n\n\n

                    Installation Best Practices<\/h3>\n\n\n\n

                    Pre-Installation Checklist<\/h4>\n\n\n\n
                      \n
                    • \u2713 Verify connector model matches requirements<\/li>\n
                    • \u2713 Check all flaps open and close smoothly<\/li>\n
                    • \u2713 Inspect O-rings for damage or debris<\/li>\n
                    • \u2713 Review pin assignment diagram<\/li>\n
                    • \u2713 Prepare proper tools (strippers, soldering iron\/crimper, multimeter)<\/li>\n
                    • \u2713 Label wires according to flap assignment<\/li>\n<\/ul>\n\n\n\n

                      Step-by-Step Termination<\/h4>\n\n\n\n
                        \n
                      1. Plan Wire Assignment:<\/strong> Assign wires to flaps (e.g., 1-8 to Flap 1, 9-16 to Flap 2, 17-24 to Flap 3)<\/li>\n
                      2. Open Flap 1:<\/strong> Release latch, open first flap fully<\/li>\n
                      3. Prepare Wires 1-8:<\/strong> Strip insulation (3-5mm for solder, 6-8mm for crimp)<\/li>\n
                      4. Terminate Wires 1-8:<\/strong> Solder or crimp to contacts (follow pinout diagram)<\/li>\n
                      5. Inspect Flap 1:<\/strong> Verify all connections, check for cold solder joints or poor crimps<\/li>\n
                      6. Close Flap 1:<\/strong> Secure latch, verify O-ring is seated properly<\/li>\n
                      7. Repeat for Flap 2:<\/strong> Follow same process for wires 9-16<\/li>\n
                      8. Repeat for Flap 3:<\/strong> Follow same process for wires 17-24<\/li>\n
                      9. Final Testing:<\/strong> Continuity test all 24 conductors, insulation resistance test<\/li>\n
                      10. Documentation:<\/strong> Record test results, label connector with date and technician ID<\/li>\n<\/ol>\n\n\n\n

                        Common Mistakes to Avoid<\/h4>\n\n\n\n
                          \n
                        • \u274c Crossing Wires Between Flaps:<\/strong> Keep wire assignment organized<\/li>\n
                        • \u274c Damaging O-Rings:<\/strong> Handle flaps carefully, inspect seals before closing<\/li>\n
                        • \u274c Overtightening Latches:<\/strong> Secure but don’t force (can damage seals)<\/li>\n
                        • \u274c Skipping Testing:<\/strong> Always test before deployment<\/li>\n
                        • \u274c Poor Wire Preparation:<\/strong> Proper stripping length is critical<\/li>\n<\/ul>\n\n\n\n

                          Quality Testing<\/h3>\n\n\n\n

                          Standard Tests (Included)<\/h4>\n\n\n\n
                            \n
                          • \u2713 100% continuity testing (all 24 cores, flap-by-flap)<\/li>\n
                          • \u2713 Insulation resistance (\u22651000 M\u03a9 @ 500V DC between all contacts)<\/li>\n
                          • \u2713 Hi-pot testing (1000V AC, 60 seconds, no breakdown)<\/li>\n
                          • \u2713 Contact resistance (\u226410 m\u03a9 per contact)<\/li>\n
                          • \u2713 Flap sealing verification (visual inspection)<\/li>\n
                          • \u2713 Latch mechanism testing (50+ open\/close cycles)<\/li>\n<\/ul>\n\n\n\n

                            Optional Tests (Available)<\/h4>\n\n\n\n
                              \n
                            • Pressure testing (simulated depth, 1.5x rated pressure)<\/li>\n
                            • Salt spray testing (corrosion resistance, 48-96 hours)<\/li>\n
                            • Temperature cycling (-40\u00b0C to +85\u00b0C, 10 cycles)<\/li>\n
                            • Vibration testing (IEC 60068-2-6)<\/li>\n
                            • Mating cycle testing (500+ cycles)<\/li>\n<\/ul>\n\n\n\n

                              Ordering Information<\/h3>\n\n\n\n

                              When ordering SF series split-flap connectors:<\/p>\n\n\n\n

                                \n
                              1. Specify Model:<\/strong> SF-24-3AW-DC (or other SF series model)<\/li>\n
                              2. Quantity:<\/strong> Number of pieces needed<\/li>\n
                              3. Depth Rating:<\/strong> 100m, 300m, 1000m (standard), custom available<\/li>\n
                              4. Termination Type:<\/strong> Solder cup or crimp contacts<\/li>\n
                              5. Cable Entry Size:<\/strong> Standard 6-12mm OD (custom available)<\/li>\n
                              6. Application:<\/strong> Energy, ROV, research, etc. (for technical support)<\/li>\n<\/ol>\n\n\n\n

                                Pricing and Availability<\/h3>\n\n\n\n
                                Menge<\/th>Discount<\/th>Lead Time<\/th>Am besten f\u00fcr<\/th><\/tr><\/thead>
                                1-9 pcs<\/td>Standard pricing<\/td>3-5 Tage<\/td>Samples, prototypes<\/td><\/tr>
                                10-49 pcs<\/td>10% discount<\/td>5-7 Tage<\/td>Small projects<\/td><\/tr>
                                50-99 pcs<\/td>20% discount<\/td>7-10 days<\/td>Medium production<\/td><\/tr>
                                100+ pcs<\/td>30%+ discount<\/td>10-15 days<\/td>Large production, OEM<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

                                Compatible Accessories<\/h3>\n\n\n\n

                                Protective Caps<\/h4>\n\n\n\n
                                  \n
                                • SF-CAP-24:<\/strong> Protective cap for SF-24 series (keeps flaps closed during storage)<\/li>\n<\/ul>\n\n\n\n

                                  Cable Glands<\/h4>\n\n\n\n
                                    \n
                                  • SF-CG-6-12:<\/strong> Cable gland kit for 6-12mm OD cables (included with connector)<\/li>\n
                                  • SF-CG-12-18:<\/strong> Cable gland kit for 12-18mm OD cables (optional)<\/li>\n<\/ul>\n\n\n\n

                                    Termination Tools<\/h4>\n\n\n\n
                                      \n
                                    • SF-TOOL-KIT:<\/strong> Complete termination toolkit (strippers, crimpers, test leads)<\/li>\n
                                    • SF-JIG-24:<\/strong> Termination jig for SF-24 series (holds connector during wiring)<\/li>\n<\/ul>\n\n\n\n

                                      How to Request a Quote<\/h3>\n\n\n\n

                                      For SF series split-flap connector quotations:<\/p>\n\n\n\n

                                        \n
                                      1. Send Inquiry:<\/strong> Email info@hysfsubsea.com<\/li>\n
                                      2. Specify Model:<\/strong> SF-24-3AW-DC (or other SF series model)<\/li>\n
                                      3. Quantity:<\/strong> Number of pieces needed<\/li>\n
                                      4. Application:<\/strong> Energy, ROV, research, etc.<\/li>\n
                                      5. Special Requirements:<\/strong> Custom depth rating, cable entry size, etc.<\/li>\n<\/ol>\n\n\n\n

                                        Reaktionszeit:<\/strong> Complete quotation within 24-48 hours including freight options<\/p>\n\n\n\n

                                        Contact:<\/strong> info@hysfsubsea.com<\/p>\n\n\n\n

                                        Need 24-core split-flap underwater connectors for your multi-conductor application? Contact us with your specifications and we’ll provide competitive pricing with fast delivery within 24-48 hours.<\/em><\/p>","protected":false},"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"faq_category":[],"class_list":["post-4412","knowledge-base","type-knowledge-base","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/hysfsubsea.com\/de\/wp-json\/wp\/v2\/knowledge-base\/4412","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hysfsubsea.com\/de\/wp-json\/wp\/v2\/knowledge-base"}],"about":[{"href":"https:\/\/hysfsubsea.com\/de\/wp-json\/wp\/v2\/types\/knowledge-base"}],"replies":[{"embeddable":true,"href":"https:\/\/hysfsubsea.com\/de\/wp-json\/wp\/v2\/comments?post=4412"}],"version-history":[{"count":0,"href":"https:\/\/hysfsubsea.com\/de\/wp-json\/wp\/v2\/knowledge-base\/4412\/revisions"}],"wp:attachment":[{"href":"https:\/\/hysfsubsea.com\/de\/wp-json\/wp\/v2\/media?parent=4412"}],"wp:term":[{"taxonomy":"faq_category","embeddable":true,"href":"https:\/\/hysfsubsea.com\/de\/wp-json\/wp\/v2\/faq_category?post=4412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}