The **WMS2-CB-R** is a specific electronic component belonging to the family of **Miniature Circuit Breakers (MCB)** or specialized protection switches, often used in telecommunications, industrial control, and power distribution systems. Below is a detailed breakdown of its electronic and mechanical specifications. --- ### 1. General Specifications The WMS2-CB-R is designed to protect electrical circuits from damage caused by excess current from an overload or short circuit. | Feature | Description | | :--- | :--- | | **Component Type** | Hydraulic-Magnetic Circuit Breaker | | **Number of Poles** | 2 Poles (Dual-pole protection) | | **Mounting Style** | Plug-in / Rail Mount (Depends on specific sub-series) | | **Actuator Type** | Rocker or Toggle Switch | | **Termination** | Bullet Terminal / Screw Terminal | --- ### 2. Key Electronic Characteristics The "Hydraulic-Magnetic" technology is the core electronic principle of this device. Unlike thermal breakers, it is not affected by ambient temperature. * **Current Rating:** Typically available in ranges from 1A to 50A (specific to the "R" suffix configuration). * **Voltage Rating:** Supports both AC and DC applications, commonly up to **80VDC** or **250VAC**. * **Interrupting Capacity:** Designed to handle high-fault currents (often up to 2,000A - 5,000A) without catastrophic failure. * **Time Delay Curves:** The internal hydraulic fluid determines the "trip curve." It allows for brief surges (like motor startups) but trips instantly during a dead short. --- ### 3. Part Number Breakdown (WMS2-CB-R) While nomenclature can vary slightly by manufacturer (such as Airpax/Sensata or Carling equivalents), the breakdown generally follows this logic: | Segment | Meaning | | :--- | :--- | | **WMS** | Series designation (often indicating a mid-size or "White" series frame). | | **2** | Indicates a **Two-Pole** unit (shuts off both hot/neutral or two phases simultaneously). | | **CB** | Circuit Breaker function with standard trip characteristics. | | **R** | Usually denotes **Rear terminals** or **RoHS Compliant** (check specific datasheet for terminal orientation). | --- ### 4. Typical Applications * **Telecommunications:** Protection for rack-mounted DC power distribution units (PDUs). * **Marine Electronics:** Used in main panels due to resistance to vibration and temperature. * **Industrial Automation:** Protecting PLCs and sensitive electronic controllers. * **Data Centers:** Circuit protection for high-density server power strips. ---