The **8536SHO2V06H30** is a specific model of an AC magnetic starter from the **Square D (Schneider Electric)** Type S NEMA range. It is primarily used to start and protect industrial electric motors. --- ### 1. Component Breakdown (Catalog Number Logic) To understand the electronic and mechanical parts, we can decode the part number: | Code Segment | Meaning | Description | | :--- | :--- | :--- | | **8536** | Type | NEMA Magnetic Motor Starter (Non-reversing). | | **S** | Series | Type S series (compact, modular design). | | **H** | Size | **NEMA Size 3** (Rated for up to 50 HP @ 460V). | | **O** | Enclosure | **Open Style** (No metal box; intended for panel mounting). | | **2** | Poles | **3-Pole** design for 3-phase motors. | | **V06** | Coil Voltage | **480V AC, 60Hz** / 440V AC, 50Hz control coil. | | **H30** | Overload | **Motor Logic™ Solid-State Overload Relay** (Class 10/20). | --- ### 2. Key Electronic & Electromechanical Parts #### A. The Magnetic Contactor The core of the unit is the contactor, which acts as a heavy-duty relay. * **The Coil (V06):** An electromagnetic solenoid. When 480V is applied, it creates a magnetic field that pulls the power contacts closed. * **Power Contacts:** Silver-cadmium oxide points designed to handle high inrush currents without welding shut. * **Armature/Magnet Frame:** A laminated steel assembly that reduces eddy currents and humming during operation. #### B. The Solid-State Overload Relay (H30) Unlike older "melting alloy" heaters, the **H30** designation indicates a **Motor Logic™** electronic overload relay. * **Current Sensing:** Uses internal current transformers (CTs) to monitor the actual amperage flowing to the motor. * **Phase Loss Protection:** It can detect if one phase drops out and trip the motor within seconds to prevent burnout. * **Adjustability:** Features a dial to set the Full Load Amps (FLA) precisely to the motor's nameplate, providing much more accurate protection than thermal heaters. #### C. Auxiliary Contacts This unit usually comes with one Normally Open (N.O.) holding circuit contact. This is used for "3-wire control," allowing the starter to stay energized after a momentary "Start" button is pressed. --- ### 3. Technical Specifications | Feature | Specification | | :--- | :--- | | **NEMA Size** | 3 | | **Current Rating** | 90 Amperes | | **Horsepower (HP)** | 25 HP @ 200V / 30 HP @ 230V / 50 HP @ 460-575V | | **Phase** | 3-Phase | | **Overload Type** | Solid State (Self-powered) | | **Mounting** | Vertical (Panel Mount) | --- ### 4. Application Usage Because this is an **Open (O)** style unit with a **480V (V06)** coil, it is typically found inside a large industrial control panel where the main plant power is used for the control logic. The **H30** electronic overload makes it ideal for expensive motors where high-accuracy tripping and phase protection are required.