The **8536SDO2V08** is a specific model of a NEMA motor starter manufactured by **Schneider Electric (Square D)**. It is part of the Type S series, designed for controlling AC motors by providing a means for starting, stopping, and protecting the motor. --- ### ## Technical Specifications | Feature | Specification | | :--- | :--- | | **Manufacturer** | Schneider Electric (Square D) | | **Product Type** | Non-Reversing Magnetic Motor Starter | | **NEMA Size** | Size 2 | | **Current Rating** | 45 Amperes | | **Number of Poles** | 3-Pole | | **Control Voltage** | 208 V AC @ 60 Hz | | **Enclosure Type** | Open (No physical box included) | | **Overload Type** | Melting Alloy (Heater elements sold separately) | --- ### ## Key Electronic & Mechanical Components #### 1. Magnetic Contactor The core of the unit is a **3-pole magnetic contactor**. When the 208V control circuit is energized, an electromagnetic coil pulls the power contacts closed, allowing high-voltage electricity to flow to the motor. #### 2. Control Coil (V08 Code) The "V08" suffix specifically identifies the **operating voltage** of the electromagnetic coil. * **Voltage:** 208V AC. * **Frequency:** 60 Hz. * This coil must match the control circuit voltage to prevent burning out the component or failing to engage the contacts. #### 3. Overload Relay Block This starter uses a **Melting Alloy Overload Relay**. It serves as the "brain" for thermal protection. * **Thermal Units:** It requires "Thermal Units" (Heaters) to be installed. These are sized specifically to the Full Load Amps (FLA) of the motor. * **Protection:** If the motor draws too much current, the heater melts a small amount of alloy, tripping the mechanism and disconnecting the coil circuit to save the motor. #### 4. Auxiliary Contacts The unit typically includes one **Normally Open (N.O.)** auxiliary contact (often referred to as a "holding circuit" or "seal-in" contact) used for three-wire control logic (Start/Stop buttons). --- ### ## Typical Application Wiring ```mermaid graph TD A[L1/L2/L3 Power In] --> B[8536SDO2V08 Starter] B --> C[Overload Relay] C --> D[Motor] E[208V Control Signal] --> F[Coil Terminals A1/A2] ``` --- ### ## Maintenance Notes * **Contact Inspection:** Because this is an open-style NEMA starter, the contacts are robust but should be inspected periodically for pitting or carbon buildup. * **Heater Selection:** The starter will **not operate** correctly without the proper thermal units installed in the overload block. These must be purchased based on the specific motor nameplate data.