The **M2AC-A23-R** is a specific model within the **M2AC Series** of Magnetic Proximity Sensors, typically manufactured by companies like **Azbil (formerly Yamatake)**. These are high-precision, non-contact switches used primarily in industrial automation to detect the presence of magnetic targets. --- ### ## Technical Specifications The electronic characteristics of the M2AC-A23-R are defined by its reed switch mechanism and its housing design. | Feature | Specification | | :--- | :--- | | **Contact Type** | SPST (Single Pole Single Throw) | | **Operating Mode** | Normally Open (NO) | | **Switching Voltage** | Max 100V DC / 125V AC | | **Switching Current** | Max 0.5A | | **Contact Capacity** | 10VA (Volt-Ampere) | | **Sensing Distance** | Approx. 15mm to 25mm (Depending on magnet strength) | | **Response Time** | < 1.0 ms | | **Housing Material** | Aluminum (Threaded cylindrical) | --- ### ## Key Electronic Components & Working Principle The internal electronics of this part are relatively simple but robust, designed for longevity in harsh environments. 1. **Hermetically Sealed Reed Switch:** The core component is a glass-encapsulated reed switch. When a magnetic field (from a permanent magnet or electromagnet) approaches the sensor, the internal metal reeds are magnetized and pull together, completing the electrical circuit. 2. **Contact Protection:** While the basic model is a dry contact, it is often paired with external protection (like a snubber circuit) if used with inductive loads to prevent contact welding. 3. **No Power Supply Required:** Because it is a passive magnetic switch, the M2AC-A23-R does not require an external DC power supply to operate; it functions purely based on magnetic flux. --- ### ## Application & Installation The "A23" designation usually refers to the physical dimensions (M12 or M18 threading) and the "R" often signifies a specific connector or lead wire configuration. * **Wiring Diagram Example:** ```text [Sensor] ----(Blue Wire)---- [Load/PLC Input] ----(Brown Wire)---- [Power Source V+] ``` * **Usage:** It is commonly used for cylinder position sensing, door interlocks, and limit detection where optical or inductive sensors might fail due to dust or non-metallic interference. ---