### Technical Overview: M22S-DR-R The **M22S-DR-R** is a high-quality industrial pilot device from the **Eaton Moeller M22 series**. Specifically, it is a non-illuminated, maintained pushbutton designed for control circuits. --- ### 1. Key Technical Specifications | Feature | Description | | :--- | :--- | | **Type** | Pushbutton Actuator | | **Action** | Maintained (Stay-put / Push-on, Push-off) | | **Color** | Red | | **Bezel Material** | Black Plastic (S-Series) | | **Degree of Protection** | IP66, IP67, IP69K | | **Mounting Diameter** | 22.5 mm | | **Environmental Rating** | NEMA 4X, 13 | --- ### 2. Electronic Component Breakdown While the M22S-DR-R is an **actuator** (the physical button head), its electronic function is defined by the **Contact Blocks** attached to the rear. #### A. The Actuator (M22S-DR-R) - **Mechanical Interface:** Uses a spring-loaded plunger that translates the physical press into linear movement to trigger the contacts. - **Maintained Mechanism:** Unlike "momentary" buttons that spring back immediately, this unit stays depressed until pressed a second time. #### B. The Contact Blocks (Required for Operation) To function electronically, this unit must be paired with M22 contact elements: - **M22-K10:** Normally Open (NO) contact. - **M22-K01:** Normally Closed (NC) contact. - **Electrical Ratings:** Typically rated for **AC-15** (up to 230V, 6A) and **DC-13** (up to 24V, 3A). #### C. Mounting Base (M22-A) The electronic parts are held together by a mounting adapter. The actuator snaps into the front of the panel, and the adapter holds the contact blocks behind the panel. --- ### 3. Usage & Applications Due to its **Red** color and **Maintained** action, this part is commonly used for: 1. **Stop Functions:** Used where a system must remain stopped until manually reset (Note: Not to be confused with Emergency Stops, which require a mushroom head). 2. **Mode Selection:** Toggling a circuit between two states (e.g., Manual vs. Auto). 3. **Hazardous Environments:** The IP69K rating allows for high-pressure washdowns, common in food processing or heavy machinery. --- ### 4. Wiring Diagram Concept ```text [ Power Source ] ---- [ Contact Block (NC/NO) ] ---- [ Load/PLC Input ] ^ | (Controlled by M22S-DR-R) ```