StanBon STD20-12NC Light Curtain Sensor - 12 Beams, 20mm Pitch, 220mm Height, 12-24V DC

The STD20-12NC operates on a wide-range DC input of 12 to 24 volts. This allows for flexible integration with common industrial power supplies, such as 24V DC from a PLC cabinet or a dedicated 12V DC safety circuit. Always ensure your power source is stable and within this specified range for reliable operation.

The 20mm beam pitch refers to the center-to-center distance between adjacent infrared beams. This spacing is critical for safety compliance, as it determines the smallest object that can be reliably detected. A 20mm pitch is commonly associated with standards for finger and hand protection, helping to prevent access to hazardous machine points.

Integration typically involves connecting the sensor's output contacts (usually a safety-rated relay or solid-state output) to your machine's safety controller or emergency stop circuit. The specific wiring depends on your control system architecture. Always refer to the manufacturer's installation manual and ensure compliance with local safety regulations (e.g., ISO 13849) when implementing the light curtain.

The StanBon STD20-12NC provides an effective detection height of 220 millimeters. This is the vertical span covered by the array of 12 beams. It is suitable for guarding openings, access points, or the perimeter of machinery where this vertical coverage is sufficient to detect an intrusion.