The **M2MS-0-R/CE** is a specific industrial control component, typically identified as a **non-illuminated mushroom head momentary push button** from the M22 (RMQ-Titan) series, often manufactured by Eaton (Moeller). Below is a breakdown of its electronic and mechanical parts, specifications, and function. --- ### 1. Component Breakdown The device is modular, meaning the "part number" often refers to the operator head, which must be paired with other components to function. | Component | Description | | :--- | :--- | | **Actuator (Head)** | A 38mm "Mushroom" shaped button, usually black (indicated by the "0" or "S" in some naming conventions). | | **Bezel** | The silver (titanium) or black ring that secures the button to the panel. | | **Contact Block** | (Sold separately or as a set) The electrical switch element (NO - Normally Open / NC - Normally Closed). | | **Fixing Adapter** | The plastic piece that snaps onto the head to hold the contact blocks in place. | --- ### 2. Technical Specifications | Feature | Details | | :--- | :--- | | **Series** | M22 (RMQ-Titan) | | **Mounting Diameter** | 22.5 mm | | **Action Type** | Momentary (Spring return - stays actuated only while pressed) | | **Button Shape** | Mushroom (38 mm diameter) | | **Degree of Protection** | IP66, IP67, IP69K (High resistance to dust/water) | | **Standards** | IEC/EN 60947, VDE 0660, CE | --- ### 3. Electrical Functionality The M2MS-0-R/CE functions as a **Human-Machine Interface (HMI)**. 1. **Switching Logic:** It does not process logic itself; it provides a physical break or connection in a circuit. 2. **Mounting:** It is designed for front-panel mounting. 3. **Terminal Connection:** It interfaces with contact blocks (like M22-K10 or M22-K01) via screw terminals or spring-cage terminals. 4. **Voltage/Current:** While the head is plastic/metal, the assembly typically handles up to **230V/400V AC** and **4A to 6A** depending on the contact blocks attached. --- ### 4. Application Examples * **Manual Overrides:** Used when a standard flush button is too small to operate with gloves. * **Non-Critical Stops:** Because it is "Momentary" and "Black," it is **not** used for Emergency Stops (which must be red and stay latched). * **Machine Cycle Start:** Frequently used for "Reset" or "Start" functions in heavy industrial environments.