TECHNICAL FEATURES
Brushless High-Current Rotating Electrical Connectors Deliver Unmatched Performance And Reliability
- Supports up to 35 amps per channel/contact.
- Ensures consistent current and signal transmission without interruptions.
- Designed for long-lasting operation with no maintenance required.
- Sealed construction protects against environmental conditions, machine vibrations, and external disturbances.
ROTOCON high-current rotating electrical connectors are designed for end-of-workpiece mounting. The ROTOCON MY/MZ series offers a high ampacity rating and multiple channels, making it ideal for applications requiring high current or a large number of contacts. For applications with fewer than 30 channels/contacts or less than 20 amps per contact, we recommend our ROTOCON MX Series.
ROTOCON high-current rotating electrical connectors are widely used in industries such as wastewater treatment, centrifuges, thermoforming, packaging, and other demanding industrial and scientific applications. They provide a stable, maintenance-free electrical connection for high channel count and high current needs, ensuring uninterrupted power and signal transmission without measurable electrical noise. They remain unaffected by machine vibration, rotational speed, environmental factors, or the total number of revolutions.
ROTOCON high-current rotating electrical connectors are sealed from environmental exposure and constructed with durable materials, making them a trusted choice for manufacturing, R&D, and other high-performance applications. Their rugged, industry-focused design ensures long-lasting, reliable performance while eliminating the frequent maintenance and downtime associated with traditional brushed slip rings.
ROTOCON high-current rotating electrical connectors are highly customizable to fit your application’s exact requirements. Customizable options include mechanical mounting, electrical terminations, and additional value-added features. Additionally, Meridian Laboratory offers cost-effective solutions for Custom ROTOCON Rotating Electrical Connectors, supporting both low and high-volume needs.
Advantages
Why Choose ROTOCON High Current Rotating Electrical Connectors?
General Specifications
MOUNTING
End-of-Shaft
End-of-Shaft: This series of rotating electrical connectors is intended to be mounted at the end of a workpiece and is typically secured via set screws to the shaft, or has a variety of other options available.
RPM
2,000
The maximum rotational speed of a ROTOCON rotating electrical connector is directly limited to the temperature the slip ring reaches under maximum current load and rotational speed within a given environment. The speeds shown are up to and not guaranteed in absolute maximums.
TEMPERATURE
-4°F to 160°F
(-20°C to 70°C)
Temperature rating is measured at the body of the ROTOCON slip ring under maximum current load and rotational speed; it should not exceed 160˚F for continuous periods of time. For application specific scenarios, please contact Meridian Laboratory.
CONTACT RESISTANCE
0.2mΩ
Contact resistance refers to the electrical resistance between the stationary and rotating portions, internal to the ROTOCON rotating electrical connector. This is measured without additional cabling or connectors, and is internal to the units themselves. This is measured stationary or rotating, regardless of rotational direction, speed, or orientation.
Configurations
MY/MZ Standard Models (26-50 Channels)
| Name | Channels | Amperage | Voltage | Data Speed | Thermocouple Wire | Mounting | Shaft Electrical Term | Body Electrical Term | Part Downloads | 2D Download Action Type | File Datasheet | Model Download (3D STP) | Photos |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MY-47-0412 | 47 | 1A | 600V | 1 Gbps | No | End of Shaft | Flying Leads | Flying Leads | Custom Model | Yes | MY-47-0412.jpg | ||
| MY-48 | 48 | 1A | 600V | End of Shaft | Flying Leads | Ring Terminals | Custom Model | Yes | |||||
| MY-44 | 44 | 1A | 600V | End of Shaft | Flying Leads | Ring Terminals | Custom Model | Yes | |||||
| MZ-40 | 40 | 35A | 600V | End of Shaft | Flying Leads | Ring Terminals | Custom Model | Yes | |||||
| MZ-32 | 32 | 35A | 600V | End of Shaft | Flying Leads | Ring Terminals | Custom Model | Yes | |||||
| MY-40 | 40 | 2.75A | 600V | End of Shaft | Flying Leads | Ring Terminals | Custom Model | Yes | |||||
| MZ-28 | 28 | 35A | 600V | End of Shaft | Flying Leads | Ring Terminals | Custom Model | Yes | |||||
| MY-32 | 32 | 10A | 600V | End of Shaft | Flying Leads | Ring Terminals | Custom Model | Yes | |||||
| MY-28 | 28 | 25A | 600V | End of Shaft | Flying Leads | Ring Terminals | Custom Model | Yes |
MOUNTING
MY/MZ Series Mounting

END-OF-SHAFT (STANDARD)

SHAFT FLANGE

BODY FLANGE

DOUBLE END-OF-SHAFT
For through-hole slip rings, check out our MXT-Series of through-hole rotary electrical connectors.
The standard MY/MZ 26-50 is mounted by the shaft at the end of a rotating device and secured via a set screw on a flat on the shaft. Shaft drivers are available for larger diameter mounting holes upon request.
Shaft flanges can be attached to the MY/MZ 26-50 shaft to mount the slip ring to your workpiece. Standard and customized flange offerings are available.
Body flanges can be attached to the MY/MZ 26-50 body to mount the slip ring to your workpiece. Customized flange offerings are available.
Double end of shaft options exist to transmit low value torque through the MY/MZ 26-50 slip ring. This allows for devices such as encoders, resolvers, motors, and other instruments to be attached to the slip ring’s shaft.
FAQs
Common High Current Rotating Electrical Connector Questions
Can a single ROTOCON be used to transmit both power and signal?
Yes, ROTOCON rotary electrical connectors are extremely capable and successful at transmitting both power and signal within the same assembly, minimizing interference or crosstalk.
How often is maintenance required for a ROTOCON?
Never. Once installed, ROTOCON brushless slip rings are engineered for continuous operation throughout their entire lifespan. Their brushless design not only ensures industry-leading signal quality, but also eliminates wear points and common failure modes found in traditional brushed slip rings.
Can a ROTOCON operate in any direction and orientation?
Yes, ROTOCON rotary electrical connectors can be mounted and used in any orientation and rotate in any direction. Certain uses may prolong longevity in a particular orientation, but they are designed to be used in every orientation.
Can a ROTOCON pass Profinet, Ether-CAT, Ethernet, and other industrial communication protocols?
Yes, ROTOCON rotary electrical connectors and slip rings are capable of transferring many signal types and communication protocols, including Etherlink, Profinet, EtherNet/IP, Profibus, Modbus TCP/IP, Powerlink, CC-Link IE, SERCOS III, SynqNet, MECHATROLINK-III, ControlNet, RS485, RS432, RS422, EtherCAT, and more generally speaking – any 1000BASE-T Ethernet-based or similar communication protocols. If you have a specific protocol not listed, please contact us directly to determine if your signal is compatible.
Does electrical resistance change under rotation?
The electrical resistance of a ROTOCON is extremely stable and resistive noise is effectively zero – typically less than 0.2mΩ of variation at all speeds up to the rated maximum.
What is the maximum channel / wire count offered?
ROTOCON brushless slip rings are available in configurations ranging from single contact (1) up to 100 channels / contacts. Generally speaking, anything above 30 channels is considered custom and is made to specifications / order basis.
Customization
High Current Rotating Electrical Connector Customization Options

APPLICATIONS & USES
Acoustical Testing
ROTOCON brushless high current rotating electrical connectors are used in acoustics test chambers for sensitive low-noise electrical measurements, transmitting signal from instrumentation to the stationary data acquisition systems.
Vehicle Assembly
ROTOCON brushless high current rotating electrical connectors are used within automated assembly lines to provide power and communication to rotating equipment. These systems are designed for machinery that carefully performs repetitive operations in a precise, repeatable manner – without the need for manual supervision.
Laboratory & Test Measurement
ROTOCON brushless high current rotating electrical connectors are commonly used by some of the world’s leading public and private institutions to collect critical data in applications such as centrifugal testing, torque/strain gauge testing, high-frequency vibrational testing, and many other research and development applications.
Resources
Helpful Information
Get the details you need, explore our complete resource library on every slip ring series.











