HPIL4F Underwater Connector High Power Series In-Line Connector 4 Pin Female
Keywords： high power underwater connector, HPIL4F, 200 A subsea connector, 1,000 V DC/AC underwater power connector, 4 pin high current subsea connector, ROV power connector, subsea electric motor connector, high current wet-mate connector, 600 bar power connector,
- IP68 waterproof
- Up to 7000m
- In-line, 1Pin, Male
- RV POWER GROUP
- [email protected]
-
- Description
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The HPIL4F is a HP Series High-Power 4-Pin In-Line Connector (Female), delivering 1,000 V / 50 A per contact — 200 A total in a heavy-duty subsea body rated to 690 Bar (7,000 m depth / 10,000 psi) mated. Designed for the most demanding subsea power applications — electric workover and intervention tooling, subsea motor drives, and high-power ROV tether terminations — the HP4 series combines industry-leading current capacity with full work-class depth coverage in a single connector body.
At a glance: 4 pins | 1,000 V | 50 A/contact | 200 A total | Mated 690 Bar / 10,000 psi | Open-face 480 Bar | Wet matings >500
Key Design Features
- 200 A Total Capacity at 1,000 V: The highest-rated connector in the RV Power Group underwater range — designed for high-power subsea motor drives, winch systems, and electric intervention tooling.
- In-Line (HPIL) Cable-to-Cable Configuration: Inline cable plug for direct high-power cable-to-cable connections along heavy-gauge umbilicals and power flying leads.
- 690 Bar / 10,000 psi Mated Pressure: Burton 55-series equivalent depth rating — works on all work-class ROVs and at all standard subsea production depths worldwide.
- 480 Bar Open-Face Rating: Can be lowered to depth unmated without damage — critical for ROV tool-change and hot-stab power delivery scenarios.
- 1,000 V AC/DC Rated: Supports 3-phase AC motor drives and high-voltage DC bus systems; high-voltage chloroprene rubber body with surface leakage distance >15 mm.
- 50 A per Contact — Heavy-Gauge Contacts: Large-diameter gold-plated beryllium copper contacts; contact resistance <0.005 Ω at full rated current.
- Heavy-Duty Chloroprene Rubber Body: Oversized body for maximum dielectric creepage distance at 1,000 V immersed in seawater.
- 316 SS or Titanium Shell: Available in both materials; titanium option recommended for low-weight deep-water lander or AUV power systems.
- Mandatory POM/SS Locking Sleeve: Heavy-duty locking sleeve rated for high cable-pull forces typical of large-diameter power umbilicals.
Electrical & Mechanical Specifications
| Parameter | Value |
|---|---|
| Model number | HPIL4F |
| Series | HP High-Power 4-Pin Series |
| Number of contacts | 4 |
| Connector type | In-Line (IL) |
| Voltage rating | 1,000 V DC/AC |
| Current per contact | 50 A per contact |
| Maximum total current | 200 A |
| Insulation resistance | >200 MΩ |
| Contact resistance | <0.005 Ω |
| Mated pressure rating | 690 Bar (10,000 psi) |
| Open-face pressure rating | 480 Bar (7,000 psi) |
| Rated depth (mated) | 7,000 m |
| Wet-mate cycles | >500 |
| Temperature (water) | −4°C to +60°C |
| Temperature (air) | −40°C to +60°C |
| Body material | Chloroprene rubber |
| Shell / coupling nut | 316 Stainless Steel (Titanium on request) |
| Contacts | Gold-plated beryllium copper |
| Locking sleeve | POM or Stainless Steel (mandatory before deployment) |
| O-ring seals | Nitrile |
| Cable jacket | Polyurethane (PUR) — customer-specified OD and length |
Typical Applications
- ROV thruster motor power supply — high-current direct drive and variable-speed drive connections
- Subsea electric actuator and valve operator power feeds
- Work-class ROV tether termination — high-power DC bus breakout at the vehicle
- Subsea pump motor power distribution — subsea production boosting systems
- Electric wireline and intervention tooling — coiled tubing electric drives
- Offshore wind subsea cable monitoring and structural health sensor power
- Subsea battery storage system connections — AUV recharging docking stations
- Scientific lander and benthic observatory power distribution
- ROV tooling skid power rails and junction box feedthroughs
Why Choose the HPIL4F?
Industry-Leading 200 A / 1,000 V in a Subsea Connector
The HP4 series delivers 200 A at 1,000 V — more current and voltage than any standard SubConn® or equivalent series connector — making it the first choice for electric intervention tools, subsea winch drives, and next-generation all-electric ROVs.
Depth Rating Matched to Work-Class ROV Requirements
With a mated pressure rating of 690 Bar (10,000 psi), the HPIL4F covers the full operating depth envelope of all work-class ROVs (e.g. Schilling UHD, Saab Seaeye Cougar, FMC Triton XLS) and the majority of permanent subsea installation depths worldwide.
Fully Interchangeable Within the Series
IL and BH body styles share the same mating face and contact geometry — a BH bulkhead mates with its IL cable-plug counterpart without adapters. All models are available with male or female contacts to match the preferred wiring convention of each installation.
Traceable Material and Pressure Testing
All high-power connectors are supplied with material certificates on request. Batch hydrostatic pressure testing to the rated depth is available for major oil & gas operator approval programmes (BP, Shell, TotalEnergies, Equinor, and equivalents).
Flexible Procurement
Available as bare connectors, factory-terminated cable assemblies, or matched IL + BH pairs. Contact [email protected] with cable specifications, required lengths, and quantity for a same-day quotation.
Complete High-Power Underwater Connector Range
How to Select Your High-Power Underwater Connector
| Criterion | Guidance |
|---|---|
| Voltage | Up to 600 V → BHB/ILB series; up to 1,000 V → IL1/BH1 single-pin or HP4 4-pin |
| Current (total) | Up to 100 A → 1-pin 1kV series; up to 75 A (3-pin) → BHB/ILB; up to 200 A → HP4 |
| Pin count | Single-phase: 2 pins; 3-phase or 2+ground: 3 pins; high-power 3-phase: 4 pins (HP4) |
| Connector style | BH/BHB/HPBH for panel/bulkhead mount; IL/ILB/HPIL for inline cable-to-cable |
| Gender | F (female socket) or M (male pin) — select M on the cable side for safety (no exposed live pins) |
| Depth | All series rated ≥600 Bar mated — suitable for all work-class ROV depths |
| Cable size | Specify cable OD and conductor cross-section when ordering factory-terminated assemblies |
Frequently Asked Questions
Q: What is the maximum voltage and current for the HPIL4F?
A: 1,000 V DC/AC, 50 A per contact (200 A total connector rating).
Q: Can the connector be mated underwater?
A: Yes — all models are wet-mate rated for >500 underwater connect/disconnect cycles. Install the locking sleeve before deployment.
Q: What is the rated depth?
A: Mated pressure rating is 690 Bar (10,000 psi), equivalent to approximately 7,000 m depth. Open-face rating is 480 Bar (7,000 psi).
Q: Can I connect AC and DC simultaneously through the same connector?
A: Each contact carries one independent circuit. Multi-pin models can carry AC and DC on separate contacts simultaneously, provided total current and voltage per contact are within ratings.
Q: Is a locking sleeve required?
A: Yes — always install the POM or SS locking sleeve after mating and before deployment. Never deploy without it; locking sleeves prevent accidental de-mating under cable weight or sea-state vibration in high-current applications where an unplanned disconnect could be hazardous.
Q: What cable sizes can be terminated?
A: Cable OD range depends on the body size and strain relief boot. Specify your cable OD, conductor cross-section, and insulation type when ordering — we will confirm compatibility or provide a custom boot solution.
Q: Are pressure test certificates available?
A: Yes — batch or per-unit hydrostatic pressure test certificates are available. Required for most major oil & gas operator equipment approval processes.
Q: What is the difference between BH and BHB / IL and ILB designations?
A: BH/IL is the standard power series (up to 600 V, up to 25 A/contact). BHB/ILB denotes the "Big" bulkhead/inline variant — same voltage but heavier contacts, upgraded for 25 A/contact continuous service in higher-duty applications.
Q: Can I order the connector without a cable (bare connector only)?
A: Yes — bare connectors, factory-terminated assemblies, and matched IL+BH pairs are all available. Contact [email protected] with your requirements.
Q: What body material options are available?
A: Standard body is chloroprene rubber; shell/coupling nut is 316 Stainless Steel. Titanium hardware is available on request for weight-sensitive or high-corrosion applications.
Installation, Mating & Maintenance Guidelines
Pre-Deployment Safety Check
High-power connectors carry potentially lethal voltages and currents. Before deployment: (1) Confirm power is isolated before mating or de-mating in air. (2) Inspect contacts for corrosion, deformation, or debris — clean with a dry lint-free cloth. (3) Check O-rings for cuts or permanent compression — replace if damaged. (4) Apply silicone grease to O-ring surfaces (not to contact faces). (5) Verify locking sleeve moves freely. (6) Remove protective caps immediately before mating — minimise air exposure time.
Mating Procedure
(1) With power isolated, align guide pins and insert the cable plug into the bulkhead with a single smooth stroke. (2) Thread coupling nut finger-tight. (3) Slide locking sleeve forward until the audible click confirms engagement. (4) Verify locking sleeve is fully locked by attempting to rotate coupling nut rearward — it must not move. (5) Before energising, conduct an insulation resistance check (minimum 200 MΩ at 500 V DC) between each contact and seawater ground. (6) Energise only after full submersion and pressure equalisation if PBOF version.
Storage & Maintenance
Rinse with fresh water after every seawater exposure. Store with protective caps installed in a dry, UV-shaded environment. Lubricate O-rings before storage if unit will not be deployed within 30 days. Inspect gold-plated contacts annually; any pitting or green corrosion requires contact replacement. Return to RV Power Group for factory refurbishment if contact resistance exceeds 0.02 Ω. Always document mating history and inspection records for programme traceability and safety compliance.
For pricing, availability, matched pairs, and custom cable assemblies for the HPIL4F, contact [email protected]. Our subsea power engineering team responds within one business day.