Mercotac Inc
Mercotac Model 305 Rotary Electrical Connector
Product Code:Mercotac-305
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Product Description
Mercotac Model 305 Rotary Electrical Connector
Mercotac Model 305 - 3-Conductor Precision Rotary Connector
The **Mercotac Model 305** is a specialized 3-channel rotary connector designed for simultaneous transmission of multiple signals or low-power circuits. Rated for **4A per conductor**, this unit features a brushless liquid metal path that ensures a constant contact resistance of **less than 1mΩ**. Designed for speeds up to **1800 RPM**, the 305 delivers a "noiseless" electrical bridge for sensitive instrumentation, maintaining signal integrity for high-frequency data up to **200 MHz** over a lifespan of more than 1 billion revolutions.
Product Highlights
- 3-Channel Versatility: Triple conductors for multi-signal or 3-phase data
- Brushless Technology: Maintenance-free liquid metal contact system
- Extreme Mechanical Life: Rated for over 1 billion rotations
- Signal Purity: Negligible electrical noise for sensitive sensors
- High Frequency: Supports data and RF signals up to 200 MHz
- Zero Maintenance: Eliminates debris and brush replacement cycles
Primary Applications
- Multi-Channel Sensor and Transducer Feedback
- Precision Robotics and Multi-Axis Manipulators
- 3-Phase Power/Signal for Rotating Platforms
- Thermocouple and Strain-Gauge Signal Transfer
- LIDAR and Laser Scanning Rotary Modules
- Medical and Laboratory Rotary Instrumentation
Technical Specifications
| Number of Channels | 3 |
|---|---|
| Rated Current | 4A (per conductor) |
| Rated Voltage | Up to 250 VAC |
| Operating Temperature | -45° to +140° C (60°C max ambient) |
| Maximum Speed | 1800 RPM |
| Maximum Frequency | 200 MHz |
| Insulation Resistance | > 25 MΩ |
| Rotation Torque | 100 gm-cm |
| Contact Resistance | < 1 mΩ |
| Mechanical Life | > 1,000,000,000 Revolutions |
Operational & Safety Guidelines
- • Mounting Orientation: To maintain the liquid metal pool, the unit must be mounted within 45° of the vertical axis.
- • Connection: The use of flexible leads is recommended to prevent mechanical stress on the connector housing.
- • Housing Note: The anodized aluminum body is electrically "hot" to one of the internal conductors.
⚠️ HAZARDOUS MATERIAL: This product contains mercury. Do not use in food or pharmaceutical processing. Disposal must comply with local environmental regulations.
Technical Documentation
Download the official Mercotac product catalogue for comprehensive mounting patterns, dimensional drawings, and specialized wiring instructions for Model 305.