Kyoei Electric Co.
Kyoei Electric GRC-1-250 Mercury-free Rotary Connector

Manufacturer: Kyoei Electric Co., Ltd.
Model: GRC-1-250
- This is a single-pole rotary connector that does not use mercury, a harmful substance.
- By implementing liquid gallium alloy with high reliability, we have achieved 100 million rotations of maintenance-free operation.
Features
Mercury-free, RoHS2 compliant, contactless design for low torque and low noise.
The sealed structure protects the internal components, eliminating the need for customer covers.
Compact and high current capacity
. Can be used in high-temperature environments compared to mercury-based products (+4 to +80°C).
As a mercury-free product, it can be disposed of as regular industrial waste, reducing costs.
Applications:
Plating equipment, welding machines, and other rotating equipment requiring grounding.
Dimensional drawing

Specifications
| Part Number | GRC-1-250 |
|---|---|
| Number of poles | 1 |
| Allowable voltage | AC/DC |
| Allowable current | 250A or less |
| Permissible rotational speed | 1000rpm |
| Rotational torque | 0.0045N・m or less |
| Direction of rotation | CW-CCW Index |
| Rotation mounting direction | horizontal/vertical |
| Operating temperature | +4 to +80℃ |











