Pro-Range GB20-T12 Light Curtain Sensor Pitch 20 Beams, 220mm Detection Height - 12/24V DC, IP64

The GB20-T12 is designed for dual-voltage operation and can be powered by either a 12V DC or a 24V DC supply. Ensure your power source is stable and within this range, and note that the quiescent current draw is typically below 170mA. The sensor does not require a specific polarity on the power input for its internal logic.

The sensor provides a solid-state output capable of sinking up to 300mA. Typically, you would connect the output signal wire (often a PNP or NPN style, check the specific wiring diagram) in series with the coil of a safety relay or to a digital input on a PLC. The output activates (goes low or high, depending on configuration) when any beam is broken, signaling a stop condition. Always follow the manufacturer's wiring guide and relevant safety standards (e.g., ISO 13849) for your application.

The IP64 rating indicates the enclosure is dust-tight (6) and protected against water splashes from any direction (4). This allows for installation in most industrial environments where dust is present and occasional cleaning with water jets might occur. It is not suitable for submersion or prolonged exposure to high-pressure water. Ensure cable glands are properly sealed during installation to maintain this rating.

Yes, the effective detection range is field-adjustable from a minimum of 0.3 meters up to a maximum of 10 meters. Alignment is critical: the emitter and receiver units must be mounted parallel to each other within the specified ±5° horizontal aperture angle. Most units feature alignment indicator LEDs that signal optimal beam reception, simplifying the setup process for the configured distance.