Schneider Electric SM851A2436 Proximity Sensor

Schneider Electric SM851A2436 Microsonic through-beam receiver is a 12–24 V DC ultrasonic sensor designed to work with a matching transmitter to detect objects across a beam without contact. Operating at 200 kHz, this receiver is intended for rapid sensing of beam interruptions in industrial environments. It is specified for an ambient temperature range of 0°C to 60°C and accepts a 12–24 V DC supply, aligning with typical factory power rails. As part of Schneider Electric's SM851A Microsonic thru-beam family, the SM851A2436 is used in applications requiring non-contact detection along a fixed beam path, such as conveyor lines or safety interlocks where optical methods may be impractical. When paired with its transmitter, it forms a complete ultrasonic thru-beam sensor pair capable of reliable detection across standard industrial distances. The 200 kHz ultrasonic signaling provides precise timing characteristics suitable for use on high-speed manufacturing lines where consistent detection is essential.