LTN RE-21-4-S07 is a high-precision brushless resolver designed for accurate angular position and velocity sensing. This industrial automation component serves as an electromagnetic transducer, converting the mechanical rotation of a shaft into electrical signals. It is engineered to provide reliable performance in demanding environments where exposure to dust, oil, and extreme temperatures is common.

This resolver is typically integrated into servo motors, factory automation systems, and heavy-duty machinery. It operates by generating sine and cosine signals that represent the absolute position of the rotor within a single revolution. Because it lacks electronic components and brushes, the RE-21-4-S07 is highly resistant to mechanical wear and electrical interference, making it a standard choice for long-term position feedback in motion control applications.