The **8736SDO2V07** is a specific model of a **Reversing Magnetic Starter** manufactured by Schneider Electric under the Square D brand. It is designed for industrial motor control applications. --- ## 🛠️ Technical Specifications & Electronic Components The part number can be broken down to understand its internal configuration and electronic characteristics: | Component Category | Specification | Details | | :--- | :--- | :--- | | **Type** | 8736 | Reversing Magnetic Starter (NEMA style) | | **NEMA Size** | S | Size 2 (Handles up to 45A) | | **Enclosure** | D | Open type (No external metal box, intended for panel mounting) | | **Configuration** | O | Standard 3-pole configuration | | **Coil Voltage** | V07 | 550-600V AC @ 60Hz / 480V AC @ 50Hz | | **Overload Relay** | Motor Logic | Solid State (Electronic) Overload Protection | --- ## ⚡ Key Electronic Features ### 1. Reversing Capability The unit consists of two mechanically and electrically interlocked contactors. This allows the motor to run in both forward and reverse directions by swapping two phases of the incoming power. The **electrical interlock** prevents both contactors from closing simultaneously, which would cause a short circuit. ### 2. The Magnet Coil (V07) The "V07" suffix identifies the electromagnetic coil. * **Function:** When energized with **600V AC**, it creates a magnetic field that pulls the power contacts closed. * **Protection:** High-quality insulation prevents dielectric breakdown in high-voltage industrial environments. ### 3. Solid-State Overload Relay (Motor Logic) Modern versions of the 8736 series use **Motor Logic electronic overload relays** rather than traditional thermal heaters. * **Self-Powered:** It draws power directly from the current flowing through the lines. * **Adjustability:** Features a dial to set the Full Load Amps (FLA) of the motor accurately. * **Phase Loss Protection:** Provides electronic sensing to trip the motor if one phase is lost, preventing motor burnout. --- ## 📐 Application Data This starter is typically used for heavy-duty induction motors. | Parameter | Limit | | :--- | :--- | | **Maximum Voltage** | 600V AC | | **Continuous Ampere Rating** | 45A | | **Horsepower (HP) at 460/575V** | 25 HP | | **Horsepower (HP) at 230V** | 15 HP | --- ## 🔌 Wiring & Terminals The device features heavy-duty screw terminals: * **L1, L2, L3:** Incoming 3-phase power. * **T1, T2, T3:** Outgoing power to the motor. * **A1, A2:** Control circuit connections for the coil.