The **AOFW201-R** is a specific model of an industrial control component, typically categorized as a **Flush Silhouette Pushbutton Switch** manufactured by **IDEC**. It is designed for sleek, flush-mount applications in control panels. ### 1. Technical Specifications The following table summarizes the key electrical and physical characteristics of the AOFW201-R: | Parameter | Specification | | :--- | :--- | | **Manufacturer** | IDEC Corporation | | **Series** | TW Series (22mm) | | **Actuator Type** | Flush Silhouette (Pushbutton) | | **Contact Configuration** | 2NC (2 Normally Closed) | | **Illumination** | Non-Illuminated | | **Button Color** | Red (indicated by the "-R" suffix) | | **Mounting Hole Size** | 22.3 mm | | **Operating Force** | Momentary (Spring Return) | | **IP Rating** | IP65 (Water-resistant/Dust-tight) | --- ### 2. Key Electronic Components The device consists of three primary sub-assemblies that work together to manage the electrical circuit: #### A. The Actuator (The Head) The "AOFW" designation refers to the physical interface. - **Flush Profile:** The button sits nearly level with the panel surface to prevent accidental activation. - **Spring Return:** This is a "momentary" switch, meaning the electrical state only changes while the button is being held down. #### B. The Contact Block (2NC) The "201" in the part number indicates the contact arrangement. - **Normally Closed (NC):** By default, the circuit is complete (current flows). - **Redundancy:** Having two NC blocks allows for double-pole switching, often used in safety-critical monitoring or for signaling two separate control systems simultaneously. - **Contact Rating:** Typically rated for 10A at 120V AC (inductive) or 3A at 240V AC. #### C. The Mounting Adapter A locking ring or latching mechanism that secures the button to the panel and provides the interface for the contact blocks to snap into place. --- ### 3. Connection and Wiring To integrate this into a circuit, wires are attached to the screw terminals on the rear of the contact blocks. ```yaml Terminal IDs: - Block 1: Terminals 1 & 2 (NC) - Block 2: Terminals 3 & 4 (NC) Function: - When pressed: Terminals 1-2 and 3-4 open (break the circuit). ``` ---