STI MS46-30-520-X Safety Light Curtain Transmitter

The STI MS46-30-520-X Safety Light Curtain Transmitter is a 520 mm-tall transmitter in STI’s MiniSafe MS46 family, designed to pair with a compatible receiver to form a safety light curtain that guards hazardous machine zones in automation environments. It supports a 30 mm minimum object resolution and requires a 24 V DC power input, making it a compact, readily integrable interface for safeguarding applications. This specific unit is listed as refurbished and is identified by part number MS46-30-520-X, enabling reliable replacement in existing Safety Light Curtain systems. With its 520 mm protection height, the transmitter defines the vertical span of the safety field and works together with the corresponding receiver to detect interruptions in the beam, triggering a controlled stop to protect operators. Common applications include guarding around automated equipment such as presses, conveyors, and robotic cells where ensuring an unobstructed beam path is critical for preventing injury and minimizing downtime. The MS46 series is part of STI’s MiniSafe 4600 line, known for durable industrial safety devices that integrate into standard machine guarding architectures, offering a practical solution for keeping hazardous zones protected while maintaining efficient workflow.