The **W2AC-ACAA-R2** is a specific part number belonging to the **NKK Switches** series of toggle switches. Specifically, it is part of the **WR Series** of environmentally sealed, heavy-duty power rockers and toggles. --- ## 1. Technical Specifications Below is a breakdown of the electronic and mechanical characteristics of the W2AC-ACAA-R2: | Feature | Specification | | :--- | :--- | | **Switch Type** | Rocker Switch (Environmentally Sealed) | | **Circuit Configuration** | DPDT (Double Pole, Double Throw) | | **Switch Function** | ON-NONE-ON | | **Current Rating (AC)** | 15A @ 125V AC; 7A @ 250V AC | | **Current Rating (DC)** | 15A @ 30V DC | | **Termination Style** | Solder Lug / Quick Connect | | **Ingress Protection** | IP67 (Dust tight and Water immersion) | | **Operating Temp** | -25°C to +85°C | --- ## 2. Component Composition The part number is constructed from several sub-components that define its physical and electrical behavior: ### Internal Contacts * **Material:** Silver alloy with silver plating. This ensures high conductivity and durability under heavy electrical loads. * **Mechanism:** Uses a "Bouncing" contact mechanism designed to minimize arcing and extend the life of the switch. ### Housing and Insulation * **Base:** Heat-resistant Phenolic resin, which provides excellent dielectric strength and prevents carbon tracking. * **Sealing:** Includes an internal o-ring and a silicone rubber gasket. This makes the switch suitable for marine, industrial, or outdoor environments where moisture and dust are present. ### Actuator (The Rocker) * **Shape:** Flat, rectangular rocker. * **Color:** Usually black (standard for this series unless specified otherwise). --- ## 3. Terminal Identification Since this is a **DPDT** switch, it typically features 6 terminals on the bottom. The wiring logic follows this standard: ```text [1] [4] <- Throw 1 [2] [5] <- Common (Input) [3] [6] <- Throw 2 ``` * When the rocker is in Position A, terminals 2-1 and 5-4 are connected. * When the rocker is flipped to Position B, terminals 2-3 and 5-6 are connected. --- ## 4. Key Applications Due to its **IP67 rating** and high amperage, this component is commonly found in: * **Marine Panels:** Navigation lights or bilge pump controls. * **Construction Equipment:** Exterior lighting or hydraulic controls. * **Medical Equipment:** Devices requiring easy-to-clean, sealed surfaces. * **Industrial Automation:** Main power switches for rugged machinery.