Proxi-Ring 240W


  • Proxi powered wireless slip ring
  • Transfer power through any non metallic material including liquids, solids and gases
  • Unlimited continuous rotation
  • Corrosion and water proof – immersion rating of IP67
  • Max continuous power is 150 W, max combined peak power is 240 W (combination of min output and GPIO outputs)
  • Independent over current protection for each output
  • Corrects low voltage input to provide ±5 % output regulation
  • Plug and play system compatible with existing power supplies and communication protocols
  • 100 Rpm maximum angular velocity


The Proxi-Ring™ is a standalone electrical device that enables transfer of power across an electrical rotary joint referred to as a slip ring, electric swivel, rotary electrical interface, commutator or a collector.

The Proxi-Ring™ is a next generation solution to replace existing mechanical slip rings. It provides a reliable and maintenance free alternative and does not require friction based metal and/or carbon brush contacts to enable power and data transfer*.

Input power is transferred inductively. A standard 24 VDC power supply can be used to power the PR240W power transmitter. Up to 10 A peak can be drawn from the PR240W power receiver. The output voltage is held within a tight ±5% tolerance.

The Proxi-Ring is available as a plug and play modular system which can be used to upgrade slip rings in new or existing equipment.


  • Full contactless design – elimination of friction or heating between rotating and stationary circuit contacts
  • Cost-effective maintenance-free alternative to traditional slip rings
  • Solve continuity of power delivery and maintenance problems
  • Simplify implementation/installation processes
  • Create unique competitive advantages in the design, operation and convenience of your products

Typical Applications

  • Hydraulic wind turbine pitch control systems
  • Hydraulic control valves and actuators
  • Forestry & construction machinery
  • Robot end effectors
  • Medical equipment
  • Revolving doors
  • Process automation equipment
  • Night navigation systems


Electrical Specifications

Input voltage 24 VDC ± 10 %
Output voltage 24 VDC ± 5 %
Output current 6.5 A continuous
10 A peak 
Power transfer efficiency 83 % (typical)


Environmental Specifications

Operating temperature 32°F to 104°F
0°C to 40°C
Storage temperature -67°F to +185°F
-55°C to +85°C
Environment sealing IP67


Mechanical Specifications

Cable length (Tx & Rx)

1.0 m typical (Side-entry)

1.5 m typical (Center-entry)

Total weight 5 kg
Transmission distance (z-axis) 0 – 15 mm (for rated power)
Alignment tolerance (x or y axis) 5 mm
Housing Aluminum and acetyl



Dimensions in millimeters [inches] unless otherwise specified

PR240 mech