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Series L-HH-01-002
Power Slip Ring
Heavy-duty power slip rings for high-voltage, high-current rotary transmission — up to 10 kV and 5,000 A for industrial, energy and marine systems.

0–10 kV
Rated voltage AC/DC
≤ 5,000 A
Rated current
≤ 6,000 rpm
Rated speed
< 0.1 mΩ
Single-channel contact resistance
Overview
Megawatts across a rotating joint.
Stable electrical continuity for demanding industrial and energy systems — wind turbines, port cranes and ship propulsion pods among them. Contact materials and lead connections are chosen for the current and duty cycle.
Design advantages
- 3, 4, 6 or 12 circuits — or built to your count
- ≤ 5,000 A at up to 10 kV
- Single-channel contact resistance < 0.1 mΩ
- C3-H corrosion protection; IP51 / IP54 sealing
- Cable or copper-bar connections
Technical specifications
Standard ranges — built to your requirement.
Values marked customizable can be changed to suit your application; outline and mounting are made to order.
Electrical
| Circuits | 3, 4, 6, 12 (customizable) |
| Rated voltage | 0–10 kVAC/VDC |
| Rated current | ≤ 5,000 A |
| Insulation resistance | ≥ 300 MΩ @ 1,000 VDC |
| Rated insulation voltage | 1,000 VAC |
| Single-channel contact resistance | < 0.1 mΩ |
Mechanical
| Service life | ≤ 20 million revolutions (customizable) |
| Rated speed | ≤ 6,000 rpm (customizable) |
| Operating temperature | −45 to +80 °C |
| Humidity | 0–97 % RH |
| Protection | IP51 / IP54 (customizable) |
| Corrosion protection | C3-H |
| Contact material | Silver or carbon alloy |
| Housing | Aluminum alloy or stainless steel |
| Leads | Cable or copper bar |
| Outline and mounting | Made to order |
Gallery
Power Slip Ring in detail.

Brush gear installed in a power slip ring cabinet

Ring stack and brush holders

Wind-turbine yaw slip ring: rotor, stator, cooling, temperature monitoring and damping
Reference builds
Delivered power assemblies.

Marine · podded propulsion
Podded electric-propulsion slip ring
4 × AC 3,300 V / 2,600 A · 31.5 kA (3 s) short-circuit withstand · 12 fluid passages · 190 signal circuits · ≤ 3,600 kg.

Wind energy · yaw system
Yaw-system slip ring
3 × AC 1,140 V / 2,800 A · ≥ 10 kA surge (0.2 s), 6,000 A (3 s) · ≤ 0.1 mΩ, rise ≤ 40 K · ≤ 800 kg · online temperature monitoring.

Wind energy · pitch system
Pitch-system slip ring
AC 400 V / 50–130 A power · DC 24 V + Profibus, CAN or Ethernet · ≤ 20 rpm · IP65 · dynamic contact resistance ≤ 15 mΩ.
Applications
Where it runs.
Ship propulsion pods
Power, fluid and signal for podded electric drives.
Wind turbines
Pitch and yaw systems with online monitoring.
Port cranes and cable reels
Slewing and travelling machinery on the quay.
Industrial and energy systems
High-current rotating equipment in continuous duty.
Specify your power slip ring.
Send the operating conditions and envelope. An engineer will recommend a configuration or quote a custom build.