The **ABQW411-R** is a specific model of an industrial push button switch manufactured by **IDEC**. It belongs to the **TW series**, known for its heavy-duty construction and reliability in industrial control panels. Below is a breakdown of its electronic and mechanical specifications. --- ### 1. Component Identification | Feature | Specification | |:---|:---| | **Manufacturer** | IDEC | | **Series** | TW Series (22mm) | | **Part Number** | ABQW411-R | | **Button Type** | Oversize Mushroom Head (40mm) | | **Action** | Momentary (Spring Return) | | **Color** | Red (R) | --- ### 2. Electrical Contact Configuration The "411" in the part number defines the contact arrangement. This unit is a **DPST (Double Pole Single Throw)** configuration: * **1 NO (Normally Open):** This contact closes when the button is pressed. * **1 NC (Normally Closed):** This contact opens when the button is pressed. #### Technical Ratings: * **Thermal Current (Ith):** 10A * **Rated Insulation Voltage:** 600V * **Contact Resistance:** 50 mΩ maximum (initial value) * **Operating Voltage:** Supports AC and DC circuits (up to 600V AC / 250V DC depending on the load type). --- ### 3. Mechanical & Physical Parts The ABQW411-R consists of several modular components that work together: 1. **Operator (Mushroom Head):** The 40mm red plastic cap designed for easy palm-pressing. 2. **Mounting Thread:** Designed for a standard **22mm (7/8")** diameter hole. 3. **Locking Lever:** A signature IDEC feature that allows the contact blocks to be removed or attached to the operator body without tools. 4. **Contact Blocks:** These are the small plastic housings on the back where the wiring is connected. They feature **M3.5 screw terminals** with captive wire clamps. 5. **Gasket/Seal:** Provides an **IP65** (NEMA 4/4X/13) rating, making it water and oil-tight for industrial environments. --- ### 4. Typical Wiring Applications Because it has both an NO and an NC contact, it is highly versatile: * **NC Contact:** Often used for "Stop" functions or safety interlocks. * **NO Contact:** Often used for "Start" functions or signaling a PLC (Programmable Logic Controller) input. ```cpp // Logic Representation IF Button_Pressed: Terminal_NC = OPEN (Circuit Breaks) Terminal_NO = CLOSED (Circuit Completes) ``` ---