The **W2AC-A1BB-R** is a specific part number typically associated with the **Delta Electronics W2 Series** of industrial AC-DC power entry modules or filters. It is designed to integrate power input components into a single, compact housing to reduce electromagnetic interference (EMI). --- ## 1. Technical Specifications The following table highlights the core electronic characteristics of the W2AC-A1BB-R: | Feature | Specification | | :--- | :--- | | **Component Type** | Power Entry Module (PEM) with Filter | | **Rated Voltage** | 115V / 250V AC | | **Rated Current** | 1 Amp (at 250VAC) | | **Operating Frequency** | 50/60 Hz | | **Mounting Type** | Snap-in (Panel Mount) | | **Termination** | Quick Connect / Solder Tabs | | **Leakage Current** | 0.5mA Max (at 250V, 50Hz) | --- ## 2. Key Electronic Components This part is not a single component but an assembly of several electronic parts housed within a shielded metal case: ### A. EMI Filter (Internal) The core of the unit is a low-pass filter. It typically consists of: * **Inductors (Chokes):** Used to suppress common-mode noise. * **X-Capacitors:** Connected across the lines to suppress differential-mode noise. * **Y-Capacitors:** Connected from the lines to the ground to bypass high-frequency interference. ### B. IEC 60320 Inlet The physical interface is a standard **C14 inlet**, which accepts the power cords used in most computers and laboratory equipment. ### C. Mechanical Switch/Housing The "BB" designation in the part number often refers to the specific configuration of the housing and the type of switch or fuse holder integrated into the module. --- ## 3. Part Number Breakdown (Typical Delta Logic) While specific internal codes can vary, here is the general breakdown for this series: | Segment | Description | | :--- | :--- | | **W2** | Series designation (Compact filter series) | | **AC** | Filter type / Performance level | | **A1** | Mounting style (Snap-in) | | **BB** | Output connection type (e.g., Fast-on terminals) | | **R** | RoHS Compliance | --- ## 4. Applications * **Medical Equipment:** High-grade noise suppression for sensitive sensors. * **Telecommunications:** Protecting data lines from power grid noise. * **Industrial Automation:** Ensuring PLC stability in electrically "noisy" environments. * **Test and Measurement:** Providing clean power to oscillators and meters. ---