Model 176 with FORJ


The Model 176 with FORJ combination has served the marine industry for over 30 years and is ideal for applications where voltages exceed the 1000 V / 7 A capabilities of our Model 180.

The ESR portion is comprised of electrical power and signal passes. Highly configurable, it is customized to meet customer specific needs, providing superior performance and reliability in demanding operating environments. For the hazardous area environment, there is an option for a fully certified, flameproof enclosure. When underwater operational capability is required, it can also be adapted for use as a fluid-filled, pressure compensated unit.

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  • Electrical passes rated to 7200 V / 20 A
  • Up to 52 fiber optic channels in a very small form factor
  • Pigtail exits are capable of being sealed to IP66 standards
  • Sealed housing design tested to IP66 standards
  • Can accommodate a variety of wire and cable types
  • Hazardous area certification available
  • Stainless steel construction
  • Rugged design intended for harsh environments
  • Reliable operation under shock and vibration
  • Combined with Fluid Rotary Unions (FRU), see Model 173


  • Compliance with the highest quality standards for design, manufacture and test
  • Maintenance free operation
  • More than 30 years of proven field performance
  • Integration with Fiber Optic Rotary Joint (FORJ) and Fluid Rotary Unions (FRU) to provide a complete rotating interface solution

Typical Applications

  • Seismic survey winches
  • Remotely Operated Vehicles (ROVs)
  • Winch and TMS applications
  • Mine countermeasures
  • Towed instrument arrays
  • Oceanographic winches (surface and subsea)


Voltage Maximum 7200 VAC
Current Maximum 20 A per pass
Maximum 720 A total current*
*Maximum total current is dependent on duty cycle, ambient temperature and specific configuration.
Consult factory to ensure configuration is suitable for application.
Contact Resistance 20 mΩ nominal
Insulation Resistance Typical > 500 MΩ @ 1 kVDC
Short Circuit Rating
1.5 kA / 1s, 3.7 kA peak
Rotation Speed
Maximum 50 rpm continuous
Operating Temperature
-20°C to +55°C1
Stainless steel (304)
Insertion Length “L” (see datasheet drawing)
Varies with number of electrical passes
Standard Terminations Wire pigtails, 10 ft [3.0 m]
Flange and Cable Covers
Various entry threads and orientations available
Special Supply and installation of connectors, terminals, conduit, cable, glands, junction boxes, sealed pigtail exits
Options Please refer to the data sheet

1 -20°C to +40°C for hazardous area certified Model 176-X under Canadian jurisdiction



Technical Support

Telephone:  +1-902-468-2263