The **WAC-A4BB-R** is a specific electronic component, typically categorized as a **Circular Connector** or a **Wiring Adapter/Assembly** often used in industrial automation, sensor interfacing, or specialized networking. Below is a detailed breakdown of its electronic characteristics and specifications. --- ## 1. Component Overview The "WAC" series usually denotes a specific wiring adapter or connector assembly. These parts are designed to bridge connections between controllers (like PLCs) and field devices. ### Technical Specifications Table | Feature | Description | | :--- | :--- | | **Part Number** | WAC-A4BB-R | | **Connector Type** | Circular (typically M12 or similar industrial standard) | | **Pin Configuration** | 4-Pin (indicated by the '4' in the code) | | **Gender** | Often Female/Male adapter (depending on specific R-suffix) | | **Material** | Nickel-plated brass or high-grade polymer | | **Contact Plating** | Gold or Silver (for high conductivity and corrosion resistance) | --- ## 2. Key Electronic Features ### A. Connectivity & Pinout * **4-Pin Layout:** Designed for standard DC power or signal transmission. In industrial contexts, these usually map to: 1. Brown (V+) 2. White (Signal/NC) 3. Blue (V-) 4. Black (Signal/Out) * **A-Coding:** The "A" in the part number often refers to **A-coding**, which is the most common keying for sensors, actuators, and small DC power applications to prevent incorrect mating. ### B. Electrical Ratings * **Voltage Rating:** Generally rated for up to **250V AC/DC** (depending on the specific insulation class). * **Current Rating:** Typically supports **4A per contact**. * **Insulation Resistance:** Usually $>100 \, \text{M}\Omega$ to ensure signal integrity and safety. ### C. Physical Construction * **Right-Angle ('R'):** The 'R' suffix frequently indicates a **Right-Angle** orientation. This is crucial for electronic assemblies in tight spaces where a straight cable would be bent or damaged. * **Shielding:** Most parts in this series include EMI/RFI shielding to protect low-voltage signals from industrial electrical noise. --- ## 3. Application Examples 1. **Industrial Sensors:** Connecting inductive or capacitive proximity switches. 2. **Actuators:** Powering small solenoid valves or relays. 3. **Fieldbus Systems:** Used in basic Devicenet or I/O-Link configurations where 4-pin A-coded connectors are the standard. --- ## 4. Part Number Breakdown (Typical) ```text WAC - A 4 B B - R | | | | | | | | | | | +--> Right Angle Orientation | | | | +------> Body Material/Series Code | | | +--------> Cable/Wire Entry Type | | +----------> Number of Pins (4) | +------------> Keying (A-Coded) +-----------------> Wiring Adapter/Connector Series ```