• IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact
  • IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact
  • IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact
  • IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact
  • IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact
  • IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact
  • IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact
  • IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact
  • IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact
  • IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact

IL1F IL1M BH1F BH1M 1KV Underwater Connector Power Series Connector 1 Pin Contact

IL1F/IL1M/BH1F/BH1M SubConn Compatible single contact underwater power connector, 1 kV / 250 A (3 kV / 90 A option), 800 bar open face pressure tested, field installable.
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IL1F / IL1M / BH1F / BH1M 1-Contact Power Connector — Overview

The IL1F / IL1M / BH1F / BH1M single-contact power connectors are SubConn Compatible wet-mateable power connectors covering all four standard configurations — in-line female/male and bulkhead female/male. Rated 1 kV DC/AC rms at 250 A, they provide a dependable single-penetration power interface for subsea systems, ROVs, battery packs and underwater pump units, qualified by open-face pressure testing to 800 bar / 11,600 psi.

1 Power Contact 1 kV / 250 A 3 kV Option 800 bar Open Face Field Installable SubConn Compatible

Key Design Features

  • Heavy-duty single contact: up to 1 kV at 250 A as standard — the highest-current standard interface in the Power series, for main power feeds and battery charging.
  • 3 kV option: an overmould/bulkhead 3 kV version rated 90 A is available for high-voltage subsea loads.
  • Selection of cable sizes: designed for a range of power cables from 0.6" to 0.85" OD (15–22 mm), standard lead 1/0 AWG (53.46 mm²).
  • SubConn Compatible: proven connector and contact design, POM or stainless steel locking sleeves, pressure-proof dummy connectors.
  • Field installable: field-installable versions for straightforward repair and on-site assembly.
  • Rugged marine build: chloroprene rubber body, nitrile O-rings and stainless steel snap rings for offshore, defence and oceanographic service.

Technical Specifications

ParameterSpecification
Electric contacts1 power contact
Voltage rating (1 kV version)1 kV DC/AC rms (inline and bulkhead)
Current rating (1 kV version)250 A (inline and bulkhead)
Voltage rating (3 kV version, option)3 kV DC/AC rms (overmould and bulkhead)
Current rating (3 kV version)90 A — bulkhead must be mounted in non-conducting oil
DC rating85% of the above AC ratings
Contact resistance≤ 500 µΩ
Insulation resistance> 200 MΩ
Temperature rating (water)-4 °C to +60 °C (+25 to +140 °F)
Temperature rating (air)-40 °C to +60 °C (-40 to +140 °F)
Storage temperature-40 °C to +60 °C (-40 to +140 °F)
Qualified pressure (open face)800 bar / 11,600 psi
Depth rating (PEEK bulkhead version)300 bar / 4,350 psi

Mechanical

ParameterSpecification
Mounting thread (bulkhead)7/8-16 UNF-2A (contact thread 7/16-20 UNF-2A)
Hex flats (bulkhead)1-3/8 inch
O-ring (bulkhead)25.12 x 1.78 mm (2-022)
Moulded inline body28 mm x Ø31 mm
Dummy connector33.5 mm x Ø41 mm, with DLSB snap ring

Materials

ParameterSpecification
Connector bodyChloroprene rubber (flexible, water-resistant)
O-ringsNitrile
Locking sleevesPOM or stainless steel
Snap ringsStainless steel AISI 302
Bulkhead bodyBrass / stainless steel / titanium / anodised aluminium (options)
Contacts / adapterBrass UNS-C36000

Cable & Termination

ParameterSpecification
Inline cable (2 ft / 60 cm)1/0 AWG (53.46 mm²) synthetic rubber
Nominal cable OD (1-conductor)0.6" to 0.85" (15.0 to 22.0 mm)
Inline cable colour code1 Black
Contact termination (bulkhead, 3 kV)Solder cup Ø14 / Ø11

Mating & Compatibility

ParameterSpecification
Mates withBH1F/BH1M bulkhead to IL1M/IL1F in-line (male/female); pressure-proof dummy connector DLSB type available
InterchangeabilitySubConn Compatible — SubConn Power series (single contact / battery 2, 3, 4 contacts / High Power 4 contacts)

Typical Applications

Power supply for offshore oil and gas, renewable energy and subsea systems; ROVs, ROTVs and subsea trenching machines; marine battery pack charging; underwater pump units; hazardous-environment power supply.

Notes for Selection

All four configurations (in-line and bulkhead, male and female) share the same 1-contact power interface and are supplied as the 1 kV version as standard. A 3 kV version (3 kV DC/AC rms, 90 A) is available on request — the 90 A rating applies to the overmould and bulkhead versions and requires the bulkhead to be mounted in non-conducting oil (e.g. DC-200/350 or PMX-200/350).

Custom configurations available Customised harness cables and direct moulding to selected polyurethane (PUR) cables, customer-specified connector body material and cable lengths, field-installable versions, pressure-proof dummy connectors and certified pressure testing to specific ocean depths can be specified to order. Send us your drawing or power requirement for a quotation.