The **M2PV-C2S4-R2/UL** is a specific technical configuration for a motor protection circuit breaker or a specialized electronic module (typically associated with industrial control brands like Fuji Electric or IDEC). Based on the nomenclature, this device is designed for **low-voltage motor control and circuit protection**. --- ### 1. Key Technical Specifications The following table outlines the likely electronic and mechanical characteristics of this part: | Feature | Specification Details | | :--- | :--- | | **Component Type** | Manual Motor Starter / Circuit Protector | | **Rated Voltage** | 240V - 480V AC (Standard Industrial Range) | | **Certification** | UL Listed (Underwriters Laboratories) | | **Poles** | 2-Pole or 3-Pole configurations (depending on series) | | **Mounting** | DIN Rail or Screw Mounting | | **Reset Type** | Manual / Rotary Switch (indicated by "R2") | --- ### 2. Breakdown of the Model Code Industrial parts follow a specific logic in their naming conventions: * **M2PV**: The series identifier. This usually refers to the physical frame size and the base technology (Electronic Overload or Magnetic Trip). * **C2**: Refers to the **Current Capacity**. This indicates the maximum continuous current the device can handle without tripping. * **S4**: Often denotes the **Short Circuit Rating** or the auxiliary contact configuration (e.g., 1NO + 1NC built-in). * **R2**: Indicates a **Revision 2** hardware update or a specific **Rotary Handle** operation style. * **UL**: Denotes compliance with **UL 508** standards for industrial control equipment, ensuring it is safe for the North American market. --- ### 3. Electronic Protection Functions This part integrates several electronic and thermal mechanisms to protect machinery: 1. **Thermal Overload Protection**: Uses a bimetallic strip or electronic sensor to detect prolonged overcurrent that could overheat a motor. 2. **Instantaneous Magnetic Trip**: Protects against short circuits by cutting the circuit instantly when a high-intensity current spike is detected. 3. **Phase Loss Protection**: Detects if one phase of a three-phase system fails, preventing motor "single-phasing" which causes burnout. 4. **Adjustable Current Dial**: Most units in this series feature a small potentiometer on the front to fine-tune the trip current to the specific motor's Nameplate FLA (Full Load Amps). --- ### 4. Typical Applications * **Industrial Automation**: Protecting water pumps, conveyor belts, and fans. * **HVAC Systems**: Protecting compressor motors. * **Control Panels**: Acting as a localized disconnect and protection point for branch circuits.