IE2F-BC 2-Pin Female Bulkhead Wet-Mate Underwater Connector

Product Overview

The HYSF SUBSEA IE2F-BC Teledyne Impulse IE Series Compatible 2-Pin Female Bulkhead Underwater Connector is a compact wet-mate electrical connector designed for ROV systems, subsea instrumentation, underwater equipment, and offshore applications.Featuring two female electrical contacts, the IE2F-BC provides a reliable electrical interface for connecting subsea equipment through pressure housing walls and underwater equipment enclosures.The connector belongs to the IE Underwater Pluggable Series, originally developed by Teledyne Impulse for underwater electrical connections requiring reliable mating and unmating capabilities.Unlike conventional dry-mate connectors, the IE2F-BC is designed to permit underwater connection and disconnection when the electrical circuit is switched off.Its molded neoprene body provides environmental sealing and mechanical protection, while the stainless steel mounting section provides a secure threaded bulkhead installation.The connector features a 7/16-20 UNF-2A mounting thread and an O-ring 2-014 sealing arrangement.The original technical documentation specifies a maximum mated pressure rating of 10,000 psi and an open-face pressure rating of 5,000 psi for bulkhead connectors.With its compact two-contact configuration, the IE2F-BC is suitable for underwater electrical connections in ROV systems, subsea tooling, marine instrumentation, and offshore monitoring equipment.

Key Features and Benefits

1. Two-Pin Female Electrical Configuration

The IE2F-BC features two female electrical contacts within a compact underwater connector body.The two-contact arrangement provides a simple electrical interface for power supply, control signals, and auxiliary electrical circuits.Typical applications include:

• Underwater power connections
• ROV auxiliary equipment
• Subsea control circuits
• Underwater sensor connections
• Marine instrumentation
• Subsea monitoring equipment
• Offshore electrical systems
• Underwater tooling connections

The exact voltage, current, and conductor assignment should be specified according to the approved electrical configuration.

2. Wet-Mate Underwater Connection

The IE2F-BC is designed for underwater mating and unmating.This allows compatible connector halves to be connected or disconnected underwater without recovering the entire equipment assembly to the surface.The original IE Series documentation explicitly permits underwater plugging and unplugging with the power switched off.Key benefits include:

• Underwater connection capability
• Underwater disconnection capability
• Reduced equipment recovery requirements
• Convenient ROV-assisted maintenance
• Suitable for subsea equipment replacement
• Flexible underwater installation

Important: Electrical circuits must be de-energized before underwater mating or unmating.

3. Female Bulkhead Mounting Configuration

The IE2F-BC is a female bulkhead connector designed for fixed installation through an equipment housing or pressure enclosure.Its threaded mounting configuration provides a compact electrical feedthrough without requiring a separate large flange assembly.Typical installation locations include:

• Subsea pressure housings
• ROV electrical enclosures
• Underwater instrument housings
• Subsea junction boxes
• Marine monitoring equipment
• Offshore control modules
• Underwater sensor enclosures

The bulkhead installation allows the external underwater connector to interface with internal equipment wiring.

4. Molded Neoprene Connector Body

The original IE Series uses molded neoprene construction with improved sealing characteristics.The elastomer body provides mechanical protection around the electrical contacts and helps maintain environmental sealing during subsea operation.Benefits include:

• Flexible elastomer construction
• Mechanical protection
• Environmental sealing
• Resistance to marine exposure
• Suitable for underwater electrical connections

The neoprene construction is an important feature of the original IE connector design.

5. Stainless Steel Mounting Hardware

The IE2F-BC features stainless steel bulkhead mounting hardware.The mounting section provides a mechanical connection between the connector and the equipment housing.Its threaded configuration allows the connector to be installed through a prepared bulkhead opening.The original mechanical drawing specifies a 7/16-20 UNF-2A mounting thread.

6. 7/16-20 UNF-2A Threaded Installation

The IE2F-BC uses a 7/16-20 UNF-2A mounting thread.This threaded interface allows the connector to be installed into a compatible equipment housing or panel.The original drawing also identifies an O-ring 2-014 and a 0.75-inch hex section.These mechanical features provide the mounting and sealing interface required for installation.Before manufacturing the housing opening, engineers should verify:

• Mounting thread dimensions
• Thread engagement length
• O-ring groove dimensions
• Housing wall thickness
• Sealing surface finish
• Installation torque

7. O-Ring Sealing Arrangement

The IE2F-BC uses an O-ring 2-014 sealing arrangement.The O-ring provides sealing between the connector mounting section and the equipment housing.Proper O-ring installation and sealing surface preparation are essential for maintaining pressure integrity.The original IE Series documentation recommends lubricating O-rings with an approved silicone-based lubricant and replacing O-rings when connectors are reused.

8. 300 VDC Electrical Capability

The original Teledyne Impulse IE Underwater Pluggable Series documentation specifies electrical ratings of up to 300 VDC and 7 A.These are series-level maximum ratings and must be confirmed for the specific contact arrangement and operating conditions.The connector can be considered for appropriately designed low-voltage subsea power and control circuits.The actual permissible voltage and current depend on conductor size, electrical loading, insulation performance, and environmental conditions.

9. High-Pressure Subsea Capability

The original IE Series technical documentation specifies:

• Mated pressure rating: 10,000 psi
• Bulkhead open-face pressure rating: 5,000 psi

These ratings make the IE2F-BC suitable for demanding underwater applications when correctly installed and used with its compatible mating connector.The open-face rating is particularly relevant to fixed bulkhead installations where the mating connector may be disconnected underwater.The complete installed assembly must comply with the applicable pressure qualification requirements.

10. Rear Pigtail Electrical Connections

The IE2F-BC bulkhead configuration is supplied with rear electrical leads.The original mechanical drawing identifies 12-inch neoprene leads.The broader IE Series catalog also lists 12-inch Type E, MIL-W-16878/4, 18 AWG Teflon leads or Belden 34918 leads with a neoprene jacket for bulkhead configurations.The exact lead construction should be confirmed against the selected ordering configuration.These rear leads allow the connector to be integrated into internal equipment wiring and electrical control systems.

11. Compact Installation Design

The IE2F-BC is designed for compact underwater equipment installations.Its threaded mounting arrangement and small connector body make it suitable for equipment requiring a fixed underwater electrical interface without excessive installation space.Typical applications include ROV housings, underwater sensors, subsea junction boxes, and marine instrumentation.

12. Underwater Equipment Compatibility

The original IE Series documentation states that these connectors can mate with connectors from other manufacturers using the same design.This makes the IE2F-BC a potential replacement or alternative for compatible existing underwater electrical interfaces.However, exact mating dimensions, contact arrangement, keying, sealing geometry, and electrical ratings should be checked before claiming interchangeability.

13. Power-Off Mating and Unmating

The IE2F-BC is designed to support underwater connection and disconnection with the electrical circuit switched off.This is particularly useful for ROV operations where subsea equipment may need to be connected, disconnected, or replaced without recovering the complete system.The connector must not be mated or unmated under electrical load.

IE2F-BC Technical Specifications

Parameter	Specification
Brand	HYSF SUBSEA
Model	IE2F-BC
Compatible Series	Teledyne Impulse IE Series
Product Type	Female Bulkhead Underwater Connector
Number of Contacts	2
Contact Gender	Female
Connector Configuration	Bulkhead Receptacle
Mating Type	Wet-Mate
Connector Body	Molded Neoprene
Mounting Hardware	Stainless Steel
Mounting Thread	7/16-20 UNF-2A
O-Ring	2-014
Hex Size	0.75 inch
Rated Voltage	Up to 300 VDC (Series Reference)
Rated Current	Up to 7 A (Series Reference)
Mated Pressure	10,000 psi
Open-Face Pressure	5,000 psi
Rear Leads	12-inch Leads
Lead Specification	18 AWG, configuration dependent
Mounting Torque	Maximum 100 in-lb
Mating Condition	Underwater, Power Off
Compatible Dummy Plug	IE2M-5/8-DO

Engineering Note: The above specifications are based on the original Teledyne Impulse IE Underwater Pluggable Series technical documentation, including Technical Bulletins 75 01 and 75 10.The 300 VDC and 7 A values are maximum series-level ratings. Final HYSF product ratings must be established through the approved design, material selection, and qualification testing.

Mechanical Mounting and Installation

The IE2F-BC is designed for threaded bulkhead installation.The connector is installed through a prepared opening in an equipment panel or pressure housing.The original mechanical drawing specifies:

Mounting Parameter	Reference
Mounting Thread	7/16-20 UNF-2A
O-Ring	2-014
Hex Size	0.75 inch
Maximum Mounting Torque	100 in-lb
Connector Body	Neoprene
Mounting Hardware	Stainless Steel

Installation Requirements

1. Prepare the housing opening according to the approved mechanical drawing.
2. Verify the mounting thread and engagement length.
3. Inspect the O-ring and sealing surfaces.
4. Install the connector without damaging the O-ring.
5. Tighten the mounting hardware without exceeding the specified torque.
6. Connect the rear pigtail leads according to the wiring diagram.
7. Perform electrical continuity and insulation testing.
8. Complete the required hydrostatic pressure qualification.

Proper installation is essential for maintaining the pressure integrity of the equipment housing.

Compatible Connectors and Accessories

IE2M-5/8 – Male Inline Underwater Connector

The IE2M-5/8 is the corresponding male inline connector configuration used with compatible female IE Series interfaces.It provides a two-contact electrical connection for compatible subsea cable assemblies.The exact mating compatibility should be checked against the original connector drawing.

IE2M-BC – Male Bulkhead Connector

The IE2M-BC is the male bulkhead configuration within the IE Series.It provides an alternative fixed installation arrangement for equipment requiring a male electrical interface.It should not be confused with the IE2F-BC female bulkhead connector.

IE2F-5/8 – Female Inline Connector

The IE2F-5/8 is the female inline cable-mounted configuration.It is designed for compatible male IE Series connectors.

IE2M-5/8-DO – Dummy Plug

The original Teledyne Impulse documentation lists IE2M-5/8-DO as the corresponding dummy plug for IE2F-BC and IE2F-5/8.The dummy plug protects the connector interface when the operational mating connector is not installed.Shorted dummy configurations are also available upon request in the original product documentation.

Typical Applications of IE2F-BC

1. ROV Electrical Systems

The IE2F-BC provides a fixed electrical interface for ROV pressure housings and underwater electrical enclosures.

2. Subsea Tooling

ROV tooling systems frequently require compact electrical connections for control, auxiliary power, and sensor circuits.

3. Underwater Instrumentation

Marine sensors and measurement instruments require reliable electrical feedthroughs between internal electronics and external underwater equipment.

4. Subsea Junction Boxes

The connector can be installed on subsea junction boxes to provide fixed electrical connection points.

5. Marine Research Equipment

Oceanographic equipment and underwater research platforms may use bulkhead electrical connectors for sensor and instrument connections.

6. Underwater Monitoring Systems

Subsea monitoring equipment can use the IE2F-BC for electrical connections to sensors, control units, and auxiliary devices.

7. Offshore Inspection Equipment

Offshore inspection systems frequently incorporate underwater cameras, lighting, and instrumentation requiring fixed electrical interfaces.

8. AUV and Underwater Robotic Systems

The compact bulkhead configuration can be considered for suitable underwater robotic equipment requiring two-contact electrical connections.

9. Subsea Control Modules

Subsea control equipment may use the connector for appropriately designed electrical control and auxiliary circuits.

10. Offshore Marine Equipment

The connector can be incorporated into compatible underwater equipment housings and electrical distribution systems.

Installation and Maintenance Guidelines

Step 1: Inspect the Connector

Inspect the neoprene body, stainless steel mounting section, electrical contacts, rear leads, and O-ring.

Step 2: Check the Mounting Thread

Verify that the 7/16-20 UNF-2A mounting thread matches the prepared housing opening.

Step 3: Inspect the O-Ring

Check the O-ring 2-014 for cuts, deformation, or contamination.Replace damaged sealing components.

Step 4: Lubricate the Sealing Components

Apply an approved silicone-based lubricant according to the original manufacturer’s maintenance procedure.

Step 5: Install the Bulkhead Connector

Install the connector through the housing opening.Do not exceed the original recommended maximum mounting torque of 100 in-lb.

Step 6: Connect the Rear Leads

Connect the two rear leads according to the approved electrical wiring diagram.

Step 7: Verify Electrical Performance

Check electrical continuity, insulation resistance, and conductor identification.

Step 8: Mate the Connector

Align the compatible male connector and complete the mating operation according to the manufacturer’s instructions.

Step 9: Verify the Connection

Ensure that the connector is fully mated and mechanically secure.

Step 10: Perform Pressure Testing

Test the complete installation according to the required mated and open-face pressure qualification.Important: The IE2F-BC supports underwater mating and unmating, but the electrical circuit must be switched off during these operations.

Quality Control and Testing

Depending on the approved production configuration, HYSF SUBSEA quality-control procedures may include:

• Visual inspection
• Dimensional inspection
• Mounting thread inspection
• O-ring inspection
• Contact inspection
• Electrical continuity testing
• Insulation resistance testing
• Contact resistance testing
• Cable lead identification
• Mating compatibility verification
• Hydrostatic pressure testing
• Open-face pressure testing
• Mated pressure testing

Test reports and certificates can be provided according to the agreed project requirements.

Frequently Asked Questions

Q1: What is the IE2F-BC underwater connector?

The IE2F-BC is a two-contact female bulkhead connector from the Teledyne Impulse IE Underwater Pluggable Series.It is designed for fixed installation on underwater equipment housings.

Q2: What does BC mean?

BC stands for Bulkhead Connector, indicating a fixed connector designed for installation through an equipment housing or panel.

Q3: How many contacts does the IE2F-BC have?

The IE2F-BC has two female electrical contacts.

Q4: Is the IE2F-BC wet-mate or dry-mate?

It is a wet-mate connector that permits underwater plugging and unplugging with the electrical circuit switched off.

Q5: What is the mounting thread?

The original mechanical drawing specifies 7/16-20 UNF-2A.

Q6: What O-ring does the IE2F-BC use?

The original drawing identifies an O-ring 2-014.

Q7: What is the maximum voltage rating?

The original IE Series specifies up to 300 VDC.The final operating voltage must be confirmed for the specific configuration.

Q8: What is the current rating?

The original IE Series specifies up to 7 A.Actual current capacity depends on the electrical configuration and operating conditions.

Q9: What is the pressure rating?

The original documentation specifies 10,000 psi when mated and 5,000 psi open-face for bulkhead connectors.

Q10: What is the maximum mounting torque?

The original drawing specifies a maximum mounting torque of 100 in-lb for BC configurations.

Q11: What is the connector body material?

The original IE Series uses molded neoprene construction.

Q12: What is the mounting hardware material?

The original IE2F-BC drawing identifies stainless steel mounting hardware.

Q13: Does the IE2F-BC have rear cable leads?

Yes. The bulkhead configuration is supplied with rear electrical leads.The original drawing identifies 12-inch neoprene leads, with other lead constructions specified in the broader IE Series documentation.

Q14: Which dummy plug is compatible with the IE2F-BC?

The original Teledyne Impulse documentation lists IE2M-5/8-DO as the dummy plug for the IE2F-BC.

Q15: Can the IE2F-BC be installed on a pressure housing?

Yes. It is designed for threaded bulkhead installation through a compatible housing opening.

Q16: Can the connector be mated underwater while energized?

No. The original IE Series instructions require the electrical circuit to be switched off before underwater mating or unmating.

Q17: Is the IE2F-BC a fiber optic connector?

The original Teledyne Impulse IE2F-BC technical drawing identifies it as a two-contact electrical connector, not a two-channel fiber optic connector.

Why Choose HYSF SUBSEA IE2F-BC?

The HYSF SUBSEA IE2F-BC IE Series Compatible 2-Pin Female Bulkhead Underwater Connector provides a compact electrical feedthrough solution for subsea equipment.Its principal features include:

• Teledyne Impulse IE Series compatible interface
• Two female electrical contacts
• Female bulkhead mounting configuration
• Wet-mate underwater connection
• Molded neoprene connector body
• Stainless steel mounting hardware
• 7/16-20 UNF-2A mounting thread
• O-ring 2-014 sealing arrangement
• Up to 300 VDC series reference
• Up to 7 A series reference
• 10,000 psi mated pressure rating
• 5,000 psi bulkhead open-face pressure rating
• Rear pigtail electrical leads
• Compact installation footprint
• Compatible dummy plug options

For ROV manufacturers, subsea engineering companies, offshore equipment suppliers, and marine research organizations, the IE2F-BC provides a practical two-contact bulkhead electrical connection for compatible underwater systems.