## 8502SCO2V06 NEMA Magnetic Contactor Overview The **8502SCO2V06** is a heavy-duty NEMA-rated magnetic contactor manufactured by Square D (Schneider Electric). It is primarily used to switch power to electric motors or non-inductive loads. --- ### 1. Technical Specifications The following table outlines the primary electronic and physical ratings for this device: | Feature | Specification | | :--- | :--- | | **Series** | Type S | | **NEMA Size** | Size 1 | | **Continuous Ampere Rating** | 27 Amperes | | **Number of Poles** | 3-Pole (3-Phase) | | **Coil Voltage** | 440V AC @ 50Hz / 480V AC @ 60Hz | | **Phase** | 3-Phase | | **Enclosure Type** | Open (No NEMA enclosure included) | | **Horsepower Rating (230V)** | 7.5 HP | | **Horsepower Rating (460/575V)** | 10 HP | --- ### 2. Core Electronic Components The 8502SCO2V06 consists of three main sub-systems that handle the electricity: #### A. The Magnetic Coil (V06) The suffix **V06** defines the coil's electrical characteristics. - **Function:** When energized with **480V AC**, it creates an electromagnetic field that pulls the contacts closed. - **Consumption:** It requires a specific "inrush" current to pull the armature and a lower "sealed" current to hold it in place. #### B. Power Contacts - **Material:** Usually silver-cadmium oxide, designed for high conductivity and resistance to welding/pitting during high-current arcs. - **Configuration:** Normally Open (N.O.). The circuit is only completed when the coil is energized. #### C. Arc Suppressors / Chutes Because it manages 480V, opening the contacts under load creates an electrical arc. The internal geometry is designed to "stretch" and extinguish this arc quickly to prevent damage to the terminals. --- ### 3. Wiring Configuration Typical terminal identification for Type S contactors: ```text Control Circuit: - A1 / A2: Coil Power (Connect to 480V control source) Power Circuit: - L1, L2, L3: Incoming Line Power (3-Phase) - T1, T2, T3: Outgoing Load (Motor) ``` --- ### 4. Key Differences from Motor Starters It is important to note that the **8502** series is a **contactor**, not a full **starter**. * **Contactor (8502):** Provides remote switching only. It **does not** include thermal overload protection. * **Starter (8536):** Includes the contactor plus an overload relay to protect the motor from burning out. ---