The **M2TG-13-R2/UL** is a high-performance, precision magnetic sensor typically used in industrial automation, security systems, and position sensing. It is characterized by its ruggedized housing and UL (Underwriters Laboratories) certification for safety standards. --- ### 1. Core Technical Specifications | Feature | Description | | :--- | :--- | | **Sensor Type** | Magnetic Proximity / Reed Switch | | **Contact Form** | Form A (Normally Open) or Form C (Changeover) depending on variant | | **Housing Material** | Aluminum or Stainless Steel (Threaded) | | **Operating Voltage** | Typically up to 100V DC / 125V AC | | **Switching Current** | 0.5A (Standard) | | **Safety Certification** | UL Listed (Compliant with US and Canadian safety standards) | | **Connection Type** | Armored Cable or Lead Wires (R2 indicates specific lead length/style) | --- ### 2. Key Electronic Components The device consists of three primary internal "parts" or subsystems: 1. **The Reed Element:** Inside the metal housing is a hermetically sealed glass envelope containing two ferromagnetic reeds. When a magnetic field (from an external magnet) is brought close, the reeds become polarized and snap together, completing the circuit. 2. **Internal Resistors/Protection (Model Specific):** High-end "R2" variants often include internal current-limiting resistors or MOV (Metal Oxide Varistors) to protect the contacts from arcing and voltage spikes, ensuring a long life cycle (often rated for millions of operations). 3. **Encapsulation (Potting):** The internal electronics are encased in an epoxy resin. This protects the delicate reed switch from mechanical shock, vibration, and moisture ingress (IP67 or IP68 rating). --- ### 3. Application Use Cases * **Security Doors:** High-security monitoring for vaults or heavy industrial gates. * **Position Sensing:** Detecting the "home" position of hydraulic cylinders or robotic arms. * **Hazardous Environments:** Since the contacts are sealed in glass and then metal, they do not create external sparks, making them safer for environments with combustible dust or vapors. --- ### 4. Wiring Diagram (Conceptual) ```json { "Wiring_Configuration": { "Black_Wire": "Common (COM)", "White_Wire": "Normally Open (NO)", "Red_Wire": "Normally Closed (NC) - [Only on Form C models]" } } ```