The **M2AS1-A313-R2/CE** is a specialized electronic component primarily used in industrial automation and safety systems. It is part of the **M2AS Series** of safety limit switches, often associated with brands like **Bernstein AG** or similar industrial sensor manufacturers. --- ### Technical Specifications Below are the primary electrical and physical characteristics of the M2AS1-A313-R2/CE: | Feature | Specification | | :--- | :--- | | **Component Type** | Safety Limit Switch / Position Switch | | **Housing Material** | Thermoplastic (Glass fiber reinforced) | | **Contact Configuration** | 1 NO (Normally Open) + 1 NC (Normally Closed) | | **Actuator Type** | Roller Lever (Typically R2 designation) | | **Rated Voltage (Ue)** | 240V AC / 24V DC | | **Thermal Current (Ith)** | 10A | | **Protection Class** | IP65 / IP67 (Dust tight and water resistant) | | **Termination** | Screw terminals or M12 connector (model dependent) | --- ### Key Electronic Components & Functions 1. **Positive Opening Mechanism (NC Contact):** Unlike standard switches, the NC contact in this device is designed for safety. If the internal spring fails, the mechanical force of the actuator directly forces the contacts open to ensure a "fail-safe" stop. 2. **Snap-Action Contact Element:** The "A313" designation often refers to the internal contact block configuration. Snap-action ensures that the transition between open and closed states is instantaneous, reducing electrical arcing and increasing the lifespan of the contacts. 3. **Galvanically Isolated Contacts:** The NO and NC circuits are electrically separated, allowing them to control two different voltage potentials or signal types simultaneously (e.g., one for a PLC input and one for a safety relay). 4. **Enclosure (CE Marking):** The "CE" suffix confirms that the electronic assembly complies with European safety, health, and environmental protection standards, specifically the **Low Voltage Directive** and **Machinery Directive**. --- ### Typical Application Diagram In a standard safety circuit, the wiring usually follows this logic: ```yaml [Power Source] --> [Safety Relay] | V [NC Contact (11-12)] --> Emergency Stop Loop | [NO Contact (23-24)] --> PLC Status Monitoring ``` --- ### Applications * **Machine Guarding:** Detecting whether a safety door or gate is closed. * **Conveyor Systems:** Monitoring the position of goods or mechanical arms. * **End-of-Travel Sensing:** Preventing mechanical parts from moving beyond safe limits.