The **W2SP-2BB-R/UL** is a high-performance, chassis-mount power entry module (PEM) typically used in industrial and medical applications. It integrates a power inlet, a switch, and a circuit breaker/fuse holder into a single compact unit. --- ### ## Technical Specifications Overview The following table outlines the primary electrical and mechanical characteristics of the W2SP-2BB-R/UL: | Characteristic | Specification | | :--- | :--- | | **Component Type** | Power Entry Module (PEM) | | **Mounting Type** | Snap-in / Chassis Mount | | **Inlet Type** | IEC 60320-1 C14 | | **Voltage Rating** | 250V AC | | **Current Rating** | 10A (UL/CSA), 10A (VDE) | | **Switch Type** | 2-Pole Rocker Switch | | **Circuit Protection** | Integrated Circuit Breaker | | **Termination** | Quick Connect / Solder Tabs | | **Safety Approvals** | UL, CSA, VDE, RoHS | --- ### ### Key Electronic Components The unit is a "3-in-1" module designed to handle the input stage of an electronic device: 1. **IEC C14 Power Inlet:** The standard interface for a detachable power cord (common in PCs and lab equipment). 2. **Double-Pole Rocker Switch:** Unlike single-pole switches, a 2-pole switch disconnects both the "Live" and "Neutral" wires simultaneously, providing a higher level of safety during maintenance. 3. **Circuit Breaker (Thermal):** The "R" in the suffix often denotes a resettable thermal protector. Instead of replacing a fuse, the user can reset the breaker if an overcurrent event occurs. 4. **RFI/EMI Filter (Optional/Series specific):** While the W2SP series focuses on the switch/breaker combo, some variations include an internal LC filter to suppress electromagnetic interference. ### ### Typical Applications * **Medical Equipment:** High reliability and double-pole switching are standard requirements for patient-side devices. * **Industrial Automation:** Used in control panels where space is limited and protection is critical. * **Laboratory Instrumentation:** Provides a clean power interface with easy-to-access reset functionality. --- ### ### Wiring Diagram Logic Internally, the wiring follows this sequence: 1. **Input:** AC Line (L), Neutral (N), and Ground (G) enter via the C14 pins. 2. **Protection:** The Line and Neutral pass through the thermal circuit breaker. 3. **Switching:** The circuit is interrupted or completed by the 2-pole rocker switch. 4. **Output:** Power is delivered to the internal circuitry of the host device via the rear terminals.