Based on the part number provided, this refers to an **OMRON M2AC series Industrial Limit Switch** (specifically a sub-component or specific configuration of the M2AC series). These are heavy-duty electromechanical switches used in automation to detect the presence or position of objects. --- ## Technical Specifications The M2AC-A4E-R2/CE is a high-precision limit switch designed for industrial environments. Below are the key electronic and mechanical specifications: | Feature | Specification | | :--- | :--- | | **Contact Configuration** | SPDT (1NO / 1NC) or DPDT depending on terminal block | | **Rated Voltage** | 250 VAC / 30 VDC | | **Rated Current** | 5A to 10A (Resistive Load) | | **Actuator Type** | Roller Lever or Plunger (Model specific) | | **Operating Force (OF)** | ~15 N (Approximate) | | **Degree of Protection** | IP67 (Dust-tight and Water-resistant) | | **Certifications** | CE, UL, CSA | --- ## Breakdown of the Model Code The alphanumeric string defines specific electronic and physical characteristics: 1. **M2AC**: The base series for Omron’s heavy-duty limit switches. 2. **A4E**: Indicates the terminal specifications (usually 4-pole or specific wiring entry) and the actuator style. 3. **R2**: Refers to the **Roller** diameter or the specific lever length/offset. 4. **CE**: Confirms compliance with European safety and environmental standards (Conformité Européenne). --- ## Core Electronic Components ### 1. Contact Block The internal switching mechanism is usually a snap-action switch. When the external lever is moved, it triggers a mechanical spring that snaps the electrical contacts from the **Normally Closed (NC)** position to the **Normally Open (NO)** position. ### 2. Built-in Switch These models often use a basic switch inside a rugged housing. The electronic life is typically rated for **500,000 operations** minimum at full rated load. ### 3. Terminals The "A4E" designation typically implies a specific conduit size (e.g., G1/2 or M20) for electrical wiring. The terminals are screw-type, allowing for secure connection of stranded or solid industrial wire. ### 4. Insulation Resistance Typically rated at **100 MΩ min. (at 500 VDC)** between terminals of the same polarity and between current-carrying metal parts and ground. --- ## Typical Application Circuit In a control system, the M2AC is usually wired as an input to a PLC (Programmable Logic Controller): ```c // Pseudo-logic for Limit Switch Integration IF (Limit_Switch_NC == OPEN) { Stop_Motor(); Trigger_Alarm("Safety Limit Reached"); } ``` ---