The **M2AS1-A112-R** is a specific model of an **Industrial Limit Switch** (often associated with brands like Moujen or similar industrial component manufacturers). These components are electromechanical devices used to detect the presence or absence of an object or to monitor the position of a machine part. --- ### 1. Technical Specifications The part number typically breaks down into specific electrical and mechanical characteristics: | Feature | Description | | :--- | :--- | | **Component Type** | Precision Limit Switch / Micro Switch | | **Actuator Type** | Short Roller Lever (usually indicated by 'A1') | | **Contact Configuration** | SPDT (Single Pole Double Throw) | | **Terminal Type** | Solder or Screw Terminals | | **Current Rating** | Typically 10A to 15A at 250VAC | | **Contact Material** | Silver Alloy (for high conductivity and durability) | --- ### 2. Internal Electronic Structure While primarily mechanical, the "electronic" functionality revolves around the contact block: * **Common (COM):** The input terminal where the power enters. * **Normally Closed (NC):** The circuit is complete when the lever is at rest. * **Normally Open (NO):** The circuit completes only when the lever is depressed. * **Snap-Action Mechanism:** This ensures that the transition between NC and NO happens almost instantaneously, regardless of the speed of the physical actuator. This prevents "arcing" and reduces wear on the electrical contacts. --- ### 3. Key Electronic Ratings To ensure the safety of the circuit, the following electrical limits are generally observed for this series: ```yaml Electrical_Ratings: Voltage_AC: 125V / 250V / 480V Voltage_DC: 125V (0.4A) / 250V (0.2A) Inrush_Current: 24A Max Dielectric_Strength: 1000VAC (between non-continuous terminals) Insulation_Resistance: 100MΩ min. (at 500VDC) ``` --- ### 4. Common Applications * **Safety Interlocks:** Ensuring a machine door is closed before operation. * **End-of-Travel Sensing:** Stopping a CNC axis or conveyor belt when it reaches its limit. * **Object Detection:** Counting items on a production line via the roller lever. * **Control Panels:** Acting as a physical trigger for relays or PLC (Programmable Logic Controller) inputs. ---