The **8702SDO2V06** is a specific model of a **Reversing Magnetic Contactor** manufactured by Schneider Electric under the Square D brand. It is primarily used in industrial motor control applications. --- ### 1. Technical Specifications Table | Feature | Specification | | :--- | :--- | | **Manufacturer** | Schneider Electric (Square D) | | **Product Type** | Reversing Magnetic Contactor | | **NEMA Size** | Size 2 | | **Horsepower (HP) Rating** | 15 HP @ 230V / 25 HP @ 460V | | **Current Rating** | 45 Amperes | | **Coil Voltage** | 480V AC @ 60 Hz / 440V AC @ 50 Hz | | **Number of Poles** | 3-Pole | | **Enclosure Type** | Open (No enclosure provided) | --- ### 2. Breakdown of the Model Code The alphanumeric string follows a specific Square D nomenclature: * **8702**: Designates a NEMA-rated reversing contactor. * **S**: Indicates the "Type S" series, known for modularity and durability. * **D**: Represents the NEMA Size 2 physical frame and capacity. * **O**: Indicates "Open" type (intended for mounting inside a larger control panel). * **2**: Designates a 3-pole configuration. * **V06**: The specific voltage code for the electromagnetic coil (480V AC). --- ### 3. Key Electronic & Mechanical Components #### A. Electromagnetic Coils (V06) This unit contains two separate coils. When the **480V AC** signal is applied to one coil, it creates a magnetic field that pulls the contacts closed to run the motor in one direction. The second coil reverses the motor's phase sequence. #### B. Mechanical Interlock A critical safety component located between the two contactors. It physically prevents both contactors from closing at the same time, which would cause a catastrophic phase-to-phase short circuit. #### C. Power Contacts Heavy-duty silver-cadmium oxide contacts designed to break high-current inductive loads. They are replaceable, extending the life of the unit in high-cycle environments. #### D. Auxiliary Contacts The unit can be fitted with additional small switches used for signaling (e.g., turning on an "Engine Running" light or sending a signal to a PLC). --- ### 4. Application Use Case This part is typically found in: * **Conveyor Belts:** To move items forward and backward. * **Hoists and Cranes:** For lifting and lowering heavy loads. * **Valves/Gates:** For automated opening and closing mechanisms in industrial plants.