IL1/BH1 Single Contact Power Connector - 1kV 250A / 3kV 90A Wet-Mate Subsea Interface

IL1/BH1 Single Contact Power Connector - 1kV 250A (inline/bulkhead) and 3kV 90A (overmould/bulkhead) versions. High-current subsea power transmission at 300 bar depth, >500 mating cycles. Chloroprene rubber body, brass contacts, 1/0 AWG / 53.46 mm2 cable. For ROV power umbilicals, subsea transformers, and heavy-duty power distribution.

IL1/BH1 Single Contact Power Connector - 1kV 250A / 3kV 90A Wet-Mate Subsea Interface

The IL1 and BH1 are SubConn Power Series single-contact connectors designed for high-current subsea power transmission. Two voltage versions are available: the 1kV version (inline and bulkhead) rated at 250 A, and the 3kV version (overmould and bulkhead) rated at 90 A. All models feature chloroprene rubber connector body, brass contacts, and nitrile O-ring seals for reliable wet-mate operation at depths up to 300 bar with >500 mating cycles.

Technical Specifications

Parameter1kV Version3kV Version
Voltage Rating1 kV DC/AC rms3 kV DC/AC rms
Current Rating250 A90 A
ConfigurationInline, BulkheadOvermould, Bulkhead
Contact Resistance< 0.01 Ohm< 0.01 Ohm
Insulation Resistance> 200 MOhm> 200 MOhm
Wet Mating Cycles> 500> 500
Depth Rating (PEEK)300 bar / 4,350 psi
Pressure Tested800 bar / 11,600 psi
Connector BodyChloroprene rubber
ContactsBrass UNS-C36000
Inline Cable (2ft/60cm)1/0 AWG / 53.46 mm2 synthetic rubber
O-RingsNitrile
Temperature (Water)-4 to +60 deg C
Temperature (Air)-40 to +60 deg C
Note for 3kV version: It is recommended to mount the 3kV bulkhead in non-conductive oil (DC-200/350 or PMX-200/350).

Single Contact Power Applications

  • High-current ROV power umbilicals (250A at 1kV)
  • Subsea power distribution and switching systems
  • High-power subsea tool and machinery connections
  • Offshore renewable energy subsea power transmission
  • Subsea pumping and compression systems

Configuration Guide

ModelTypeVoltage/CurrentUse Case
IL1MIn-Line, Male1kV / 250AHigh-current cable extension
IL1FIn-Line, Female1kV / 250AHigh-current cable extension
BH1MBulkhead, Male1kV / 250A or 3kV / 90APanel feed-through
BH1FBulkhead, Female1kV / 250A or 3kV / 90APanel feed-through

Contact our engineering team for high-power system design, voltage configuration guidance, and volume pricing. Ships within 1-2 weeks from stock.

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