5507-2021 Burton 55 Series Compatible 21-Pin Bulkhead Receptacle Underwater Connector
Product Overview
The
HYSF SUBSEA 5507-2021 Burton 55 Series Compatible 21-Pin Bulkhead Connector Receptacle (BCR) is a subsea electrical connector designed for ROV systems, subsea pressure housings, underwater instrumentation, and offshore equipment requiring a high-density electrical connection.Featuring a Shell Size 20 configuration and twenty-one male pin contacts, the 5507-2021 provides a multi-channel electrical interface for compatible Burton 5500 Series cable plugs.The connector follows the Burton 55 Series mating interface and features a threaded bulkhead mounting design for installation on pressure vessels, subsea housings, and underwater equipment enclosures.The original Burton contact arrangement specifies twenty-one 18 AWG conductors for the 2021 configuration.Its construction features a passivated 316L stainless steel shell, an integrally molded elastomer body, and high-conductivity copper-alloy electrical contacts.Rear pigtail connections allow the receptacle to be integrated into customer electrical systems and internal wiring assemblies.Compared with smaller multi-pin connectors, the Shell Size 20 configuration provides a larger mechanical interface and accommodates twenty-one independent electrical contact positions.A dedicated Ethernet and power configuration is also available within the Burton 5500 Series, identified by the special part number 5507-2021-EXXX.The 5507-2021 is suitable for ROV systems, subsea control modules, underwater communication equipment, subsea junction boxes, umbilical termination systems, and offshore electrical installations.
Key Features and Benefits
1. Twenty-One-Pin Electrical Configuration
The 5507-2021 features twenty-one male pin contacts in a Shell Size 20 configuration.The high-density contact arrangement provides multiple independent electrical circuits within a single subsea connector interface.Typical applications include:
- Multi-channel electrical connections
- ROV power and control systems
- Subsea instrumentation
- Underwater sensor connections
- Marine monitoring systems
- Auxiliary equipment connections
- Subsea communication equipment
- Multi-conductor cable assemblies
- Combined power and signal distribution
The twenty-one male pin contacts are designed to mate with compatible female socket contacts in Burton 55 Series cable plugs.
2. Burton 55 Series Compatibility
The 5507-2021 follows the Burton 5500 Series dimensional and mating interface.The Burton 55 Series is widely used in subsea equipment, ROV systems, offshore installations, and underwater electrical assemblies.Its standardized interface allows compatible cable plugs and receptacles to be integrated into existing subsea systems.The 5507-2021 can be considered as a replacement or alternative for compatible Burton 55 Series bulkhead receptacles.Compatibility should be confirmed against the exact shell size, contact arrangement, keyway, mounting thread, and mating dimensions.
3. Shell Size 20 Configuration
The 5507-2021 uses a Shell Size 20 metal shell with twenty-one electrical contacts.This configuration provides a practical solution for applications requiring a high number of electrical connections within a single subsea connector.The larger shell accommodates the 21-pin contact arrangement while maintaining a compact threaded bulkhead installation.
4. Twenty-One 18 AWG Conductors
The original Burton technical catalog specifies the 2021 contact arrangement as:
21 × 18 AWG conductorsThis configuration provides twenty-one independent electrical contact positions within the Shell Size 20 connector body.It is suitable for appropriately designed power, control, instrumentation, and signal circuits.Actual current capacity must be determined according to conductor size, cable construction, operating temperature, conductor bundling, and electrical loading.The 18 AWG conductor specification should not be interpreted as a fixed current rating for every contact.
5. Threaded Bulkhead Mounting Design
The 5507-2021 is a Bulkhead Connector Receptacle (BCR).Unlike inline cable plugs and flange-mounted receptacles, the BCR configuration is designed for threaded installation through an equipment bulkhead or pressure housing.Its threaded mounting structure allows the connector to be securely installed on:
- Subsea pressure vessels
- ROV electrical housings
- Underwater equipment enclosures
- Subsea control modules
- Marine instrumentation housings
- Offshore electrical equipment
- Subsea junction boxes
- Umbilical termination systems
The Burton BCR is the standard bulkhead receptacle mounting configuration and provides an alternative to the more expensive four-bolt flange receptacle.
6. Twenty-One Male Pin Contacts
The 5507-2021 features twenty-one male pin contacts.In the Burton 5500 Series connector architecture, receptacles contain male pin contacts, while cable plugs contain female socket contacts.This arrangement is designed to prevent exposed powered pins on the cable plug side during normal power transmission.The original Burton catalog specifies high-conductivity copper-alloy electrical contacts.
7. Integrally Molded Elastomer Body
The connector features an integrally molded elastomer body.The molding process bonds the elastomer to the internal metal structure, providing mechanical protection and environmental sealing.The molded construction helps protect the electrical contacts and internal termination area.The original Burton design incorporates face-type sealing technology to support reliable subsea operation.
8. Passivated 316L Stainless Steel Shell
The standard Burton 5500 Series uses passivated 316L stainless steel for its connector shells.This material provides:
- Marine corrosion resistance
- Mechanical strength
- Seawater compatibility
- Structural protection
- Long-term subsea equipment suitability
The stainless steel shell provides a robust mechanical interface for demanding offshore and underwater applications.
9. 600V Standard Voltage Rating
The standard Burton 5500 Series voltage rating is 600 V.This makes the connector suitable for appropriately designed subsea power and control circuits.The Burton 5500 Series also offers selected high-voltage configurations rated at 1000 V, 2000 V, and 3000 V.However, not all contact arrangements are available in every voltage configuration.The standard 5507-2021 should be specified as a 600 V connector unless a separately engineered and approved high-voltage configuration is confirmed.
10. High-Pressure Subsea Capability
The Burton 5500 Series technical documentation specifies a pressure rating of 10,000 psi, approximately 690 bar.The connector family uses rugged metal shells, recessed receptacle pins, and integrated face-type sealing technology.This construction is designed for demanding underwater applications.The complete installed assembly should be evaluated according to the mating plug, mounting configuration, housing interface, sealing surfaces, and operating environment.
11. Rear Pigtail Electrical Connections
The 5507-2021 bulkhead receptacle is designed for pressure-housing installation with rear electrical connections.The original Burton catalog specifies MIL-W-16878 for pigtail wiring.The rear pigtails allow the receptacle to be integrated into customer equipment and internal electrical systems.Available customization options may include:
- Pigtail length
- Conductor identification
- Wire termination
- Cable specification
- Customized wiring arrangement
- Special installation requirements
The exact pigtail length and termination should be specified according to the final ordering configuration.
12. Ethernet and Power Combination
A dedicated Ethernet and power configuration is available for the Burton 5500 Series 21-pin bulkhead connector.The special configuration is identified as:
5507-2021-EXXXThis solution allows subsea equipment to receive electrical power and network communication through a single connector and cable assembly.The original Burton Ethernet documentation specifies:
- 1000Base-T Ethernet
- Up to 1 Gbps network performance
- Combined Ethernet and power transmission
- 600 V voltage rating
- 10,000 psi pressure rating
- Cable lengths up to 75 meters
This configuration is particularly useful for subsea cameras, ROV communication systems, underwater network devices, and subsea monitoring equipment.Important: Ethernet functionality requires the dedicated EXXX configuration, appropriate cable construction, contact assignment, and wiring arrangement. A standard 21-pin receptacle does not automatically provide Ethernet functionality.
13. Dry-Mate Connection Design
The Burton 5500 Series is a dry-mate underwater connector family.Its mating interface uses an integrated face-type sealing arrangement.The connector should be connected and disconnected in a dry environment, with electrical circuits de-energized before mating or unmating.It should not be treated as a connector designed for live underwater mating operations.
14. Suitable for ROV and Offshore Applications
The 5507-2021 is particularly suitable for underwater equipment requiring a fixed twenty-one-contact electrical interface.Potential applications include:
- Work-Class ROV systems
- ROV toolskids
- Subsea pressure housings
- Subsea control modules
- Underwater instrumentation
- Offshore inspection equipment
- Marine research systems
- Subsea monitoring equipment
- AUV and underwater robotic systems
- Subsea junction boxes
- Umbilical termination systems
- Subsea Ethernet communication
- Offshore renewable energy equipment
5507-2021 Technical Specifications
| Parameter | Specification |
|---|
| Brand | HYSF SUBSEA |
| Model | 5507-2021 |
| Connector Series | Burton 5500 Series Compatible |
| Product Type | Bulkhead Connector Receptacle (BCR) |
| Installation Type | Threaded Bulkhead Mount |
| Shell Size | 20 |
| Number of Contacts | 21 |
| Contact Gender | Male Pin |
| Contact Arrangement | 21 × 18 AWG |
| Connector Configuration | Fixed Receptacle |
| Rear Termination | Pigtail Leads |
| Pigtail Specification | MIL-W-16878 |
| Pigtail Length | Customized / Order-Specified |
| Shell Material | Passivated 316L Stainless Steel |
| Connector Body Material | Integrally Molded Elastomer |
| Contact Material | High-Conductivity Copper Alloy |
| Standard Voltage Rating | 600 V |
| Current Capacity | Refer to Ampacity Appendix |
| Pressure Rating | 10,000 psi / Approximately 690 bar |
| Mounting Method | Threaded Bulkhead |
| Thread Callouts | 1-1/4-9 and 3/4-16 |
| Installation Torque | 165 lb-in (Shell Size 20) |
| O-Ring Reference | -118 |
| Connector Type | Dry-Mate |
| Mating Connector | 5501-2021 Cable Plug |
| Optional Configuration | 5507-2021-EXXX Ethernet + Power |
Engineering Note: The original Cooper Interconnect Burton 5500 Series technical catalog specifies the 2021 contact arrangement as twenty-one 18 AWG conductors. It specifies a standard 600 V rating, 10,000 psi pressure rating, passivated 316L stainless steel shells, integrally molded elastomer bodies, and high-conductivity copper-alloy contacts.The original catalog directs users to its Ampacity Appendix for current capacity rather than specifying a universal current rating for the 2021 arrangement.The exact electrical ratings, contact plating, cable specifications, dimensions, mounting threads, and pressure qualification of the HYSF production version should be confirmed against approved engineering drawings and test records.
Twenty-One-Pin Contact Configuration
The 5507-2021 features twenty-one male pin contacts.The original Burton contact arrangement identifies the 2021 configuration as:
21 × 18 AWGThe Burton 5500 Series uses male pin contacts in receptacles and female socket contacts in cable plugs.The twenty-one-contact arrangement provides an electrical interface for appropriately designed power, signal, control, and instrumentation circuits.Before cable assembly or equipment integration, engineers should verify:
- The twenty-one contact positions.
- The mating-face orientation.
- The conductor identification.
- The pin-to-wire assignment.
- Ethernet differential pair assignments, where applicable.
- Electrical continuity.
- Insulation resistance.
- Rear pigtail termination requirements.
For Ethernet applications, the correct differential-pair assignment and cable construction are particularly important for maintaining signal integrity.
Important: The exact contact numbering and conductor colors should follow the approved 5507-2021 production wiring diagram.
Threaded Bulkhead Mounting Configuration
The 5507-2021 is designed for installation through a threaded opening in an equipment bulkhead or pressure housing.Unlike the 5506 flange receptacle, it does not require four external mounting bolts.The original Burton 5500 Series dimensional table provides the following Shell Size 20 references:
| Mounting Parameter | Specification |
|---|
| Connector Type | BCR |
| Shell Size | 20 |
| Mounting Style | Threaded Bulkhead |
| Thread Callout 5A | 1-1/4-9 |
| Thread Callout 5H | 3/4-16 |
| O-Ring Reference | -118 |
| Bulkhead Installation Torque | 165 lb-in |
The dimensional table includes multiple thread callouts for the connector assembly. Their exact functions and locations must be identified from the approved BCR mechanical drawing.Before manufacturing the pressure-housing opening, verify:
- Mounting thread specification
- Housing wall thickness
- O-ring groove dimensions
- Sealing surface finish
- Connector installation depth
- Rear pigtail clearance
- Installation torque
Proper installation is essential for maintaining the sealing performance of the complete subsea assembly.
Pigtail Cable Configuration
The 5507-2021 is a fixed bulkhead receptacle with rear pigtail connections.The original Burton catalog specifies MIL-W-16878 for pigtail wiring.Pigtail length and termination requirements can be specified according to project requirements.Customization options may include:
- Pigtail length
- Conductor identification
- Wire termination
- Cable jacket
- Customized electrical wiring
- Special installation requirements
The exact cable and termination configuration should be confirmed before production.
Compatible Connectors and Accessories
5501-2021 – 21-Pin Straight Cable Plug
The Burton 5501-2021 is a straight cable connector plug with twenty-one female socket contacts.It is the corresponding cable-mounted mating connector for the 5507-2021 bulkhead receptacle.The two connectors provide a compatible twenty-one-contact electrical interface for subsea cable assemblies.
5506-2021 – 21-Pin Flange Receptacle
The Burton 5506-2021 is the corresponding flange-mounted receptacle configuration.It provides an alternative installation arrangement for equipment requiring a four-bolt flange rather than a threaded bulkhead connection.A dedicated 5506-2021-EXXX Ethernet and power configuration is also listed in the original Burton catalog.
5507-2021-EXXX – Ethernet and Power Bulkhead Receptacle
This is the dedicated Ethernet and power configuration of the 21-pin bulkhead receptacle.It can be considered for subsea equipment requiring both electrical power and 1000Base-T network communication through one connector interface.
5107-2000-0000 – BCR Mounting Plug
A mounting plug accessory for Shell Size 20 bulkhead receptacles.
5109-2000-0000 – BCR Retaining Ring
A retaining ring accessory for Shell Size 20 BCR installations, including applicable right-angle cable plug configurations.
5101-2000-0000 – Stainless Steel Receptacle Pressure Cap
A protective pressure cap for Shell Size 20 receptacles.The original Burton catalog specifies a 500 psi rating for pressure caps.
Burton 55 Series Dummy Plug
A compatible dummy plug can be used to protect connector interfaces when the operational cable plug is not installed.The dummy plug should be selected according to the corresponding Shell Size 20 and contact configuration.
Note: Verify the exact ordering configuration, contact arrangement, keyway, mounting dimensions, and pigtail requirements before ordering mating connectors and accessories.
Typical Applications of 5507-2021
1. Remotely Operated Vehicles (ROVs)
The 5507-2021 provides a fixed twenty-one-contact electrical interface for ROV electrical systems, tooling, auxiliary equipment, and subsea instrumentation.
2. Subsea Pressure Housings
Subsea pressure housings require reliable electrical interfaces that allow internal electrical circuits to connect with external underwater equipment.The threaded bulkhead mounting design provides a practical installation solution.
3. Subsea Tooling
Underwater tools and manipulators frequently require multiple electrical connections for power, control, and feedback signals.The 5507-2021 provides a high-density twenty-one-contact bulkhead interface for compatible subsea tooling systems.
4. Subsea Umbilical Assemblies
Subsea umbilicals and cable termination systems require reliable electrical connectors for connecting underwater equipment.The Burton 55 Series interface provides an established connector option for compatible multi-conductor cable assemblies.
5. Subsea Control Modules
Subsea control systems may incorporate multiple electrical connections for monitoring, instrumentation, and auxiliary functions.The twenty-one-contact configuration can be considered for systems requiring multiple independent electrical circuits.
6. Marine Instrumentation
Marine sensors and instrumentation systems require reliable electrical connections for power, signal transmission, and monitoring.The 5507-2021 offers a fixed bulkhead interface for suitable applications.
7. Offshore Inspection Equipment
Offshore inspection systems frequently use subsea cameras, sensors, lighting equipment, and electrical tools.The connector can be integrated into compatible underwater equipment housings.
8. AUV and Underwater Robotic Systems
Autonomous underwater vehicles and robotic platforms frequently require multiple electrical interfaces for sensors, control systems, and auxiliary equipment.The 5507-2021 provides twenty-one contact positions for appropriately designed electrical connections.
9. Subsea Junction Boxes
Subsea junction boxes require multiple electrical connections for distributing power, signals, and control circuits.The twenty-one-pin configuration provides a practical option for compatible subsea electrical distribution systems.
10. Subsea Ethernet Communication
The dedicated 5507-2021-EXXX configuration can be used for subsea equipment requiring Ethernet communication and electrical power through a single connector interface.
11. Oceanographic Research Equipment
Underwater research equipment often requires multiple electrical connections for sensors, monitoring devices, and auxiliary systems.The threaded bulkhead configuration provides a practical connection option for compatible research equipment.
12. Offshore Renewable Energy
Offshore wind and marine renewable energy systems use underwater sensors, monitoring equipment, and electrical control systems.The 5507-2021 can be considered for suitable subsea electrical interface applications.
Installation and Maintenance Guidelines
Step 1: Inspect the Connector
Inspect the connector shell, male contacts, molded body, mounting threads, O-ring, and rear pigtails for visible damage.
Step 2: Verify Compatibility
Confirm the Shell Size 20 configuration, twenty-one-contact arrangement, keyway, mounting thread, and mating interface of the cable plug.
Step 3: Prepare the Equipment Housing
Verify the threaded mounting opening, housing wall thickness, O-ring sealing surface, and installation depth against the approved mechanical drawing.
Step 4: Install the Bulkhead Receptacle
Position the connector correctly and install it through the prepared bulkhead opening.Follow the specified installation procedure and recommended torque for the approved configuration.
Step 5: Connect the Rear Pigtails
Connect the twenty-one pigtail conductors according to the approved wiring diagram.
Step 6: Verify Electrical Continuity
Check all twenty-one conductors and verify the approved wiring assignments.
Step 7: Verify Ethernet Wiring
For Ethernet configurations, verify the differential pairs, cable construction, and applicable transmission requirements.
Step 8: Mate the Connector
Follow the manufacturer’s recommended mating procedure and ensure correct mechanical alignment with the compatible cable plug.
Step 9: Perform System Testing
Verify electrical continuity, insulation resistance, mounting integrity, and the complete assembly’s pressure qualification before deployment.
Step 10: Maintain After Use
Inspect the connector after recovery and follow the manufacturer’s recommended cleaning and maintenance procedures.
Important: The Burton 5500 Series is a dry-mate connector family. Circuits should be de-energized before mating or unmating. Do not treat this connector as a wet-mate connector.
Quality Control and Testing
Depending on the ordered configuration and project requirements, HYSF SUBSEA quality-control procedures may include:
- Visual inspection
- Dimensional verification
- Mounting thread inspection
- O-ring inspection
- Contact inspection
- Electrical continuity testing
- Insulation resistance measurement
- Contact resistance measurement
- Pigtail identification checks
- Ethernet continuity and performance testing
- 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 5507-2021 underwater connector?
The 5507-2021 is a twenty-one-pin bulkhead connector receptacle from the Burton 5500 Series, featuring Shell Size 20 and male pin contacts.
Q2: What does BCR mean?
BCR stands for Bulkhead Connector Receptacle. It is a fixed receptacle designed for threaded installation through an equipment bulkhead or pressure housing.
Q3: How many contacts does the 5507-2021 have?
It features twenty-one male pin contacts.
Q4: What is the shell size?
The connector uses Shell Size 20.
Q5: What is the conductor specification?
The original Burton contact arrangement specifies twenty-one 18 AWG conductors for the 2021 configuration.
Q6: What is the standard voltage rating?
The standard Burton 5500 Series voltage rating is 600 V.Higher-voltage configurations require specific contact and insulation designs and must be confirmed for the particular contact arrangement.
Q7: What is the current rating?
The original Burton catalog directs users to its Ampacity Appendix rather than assigning a universal current rating to the 2021 contact arrangement.Current capacity must be evaluated according to conductor size, cable construction, operating temperature, and electrical loading.
Q8: What is the pressure rating?
The Burton 5500 Series technical documentation specifies a pressure rating of 10,000 psi, approximately 690 bar.
Q9: How is the 5507-2021 installed?
It is designed for threaded bulkhead mounting through an equipment housing.The original Burton documentation specifies an installation torque of 165 lb-in for Shell Size 20.
Q10: Does the 5507-2021 have rear cable connections?
Yes. The bulkhead receptacle configuration uses rear pigtail connections for integration into customer electrical systems.The original Burton catalog specifies MIL-W-16878 for pigtail wiring.
Q11: What is the connector body material?
The standard Burton 5500 Series connector uses an integrally molded elastomer body.
Q12: What is the shell material?
The standard shell material is passivated 316L stainless steel.
Q13: Which connector mates with 5507-2021?
The corresponding straight cable plug is 5501-2021, featuring twenty-one female socket contacts.
Q14: Can the pigtail length be customized?
Yes. Pigtail lengths and termination requirements can be specified according to project requirements.
Q15: Does the 5507-2021 support Ethernet?
A dedicated 5507-2021-EXXX Ethernet and power configuration is available in the Burton 5500 Series.The original Burton catalog specifies 1000Base-T network performance up to 1 Gbps with the appropriate cable assembly.
Q16: What is the difference between 5507-2021 and 5506-2021?
The 5507-2021 is a threaded bulkhead receptacle, while the 5506-2021 is a four-bolt flange-mounted receptacle.Both belong to the Burton 5500 Series and use the twenty-one-pin contact arrangement.
Q17: What is the difference between 5507-2013 and 5507-2021?
Both connectors use Shell Size 20 and a threaded bulkhead mounting design.However, the 5507-2013 features thirteen contacts with 13 × 18 AWG wiring, while the 5507-2021 features twenty-one contacts with 21 × 18 AWG wiring.
Q18: Is the connector wet-mate?
No. The Burton 5500 Series is a dry-mate connector family. It should normally be connected and disconnected in a dry environment.
Q19: Can the 5507-2021 mate with a right-angle cable plug?
Yes, but the original Burton documentation specifies a BCR retaining ring instead of tapped threads when using a right-angle plug, due to keyway orientation.
Why Choose HYSF SUBSEA 5507-2021?
The
HYSF SUBSEA 5507-2021 Burton 55 Series Compatible 21-Pin Bulkhead Receptacle provides a practical electrical connection solution for demanding subsea applications.Its principal advantages include:
- Burton 55 Series compatible interface
- Shell Size 20 configuration
- Twenty-one male pin contacts
- 21 × 18 AWG conductor arrangement
- Threaded bulkhead mounting design
- High-density electrical connection
- Integrally molded elastomer connector body
- Passivated 316L stainless steel shell
- High-conductivity copper-alloy contacts
- 600 V standard series voltage rating
- 10,000 psi series pressure rating
- Rear pigtail electrical connections
- Dedicated Ethernet and power configuration
- Suitable for ROV and subsea communication applications
For ROV manufacturers, subsea engineering companies, offshore equipment suppliers, and marine research organizations, the 5507-2021 provides a high-density twenty-one-contact threaded bulkhead electrical interface for compatible Burton 55 Series installations.
