The **8502SCO2V08S_V01** is a specific configuration of a NEMA-rated magnetic contactor from the Square D (Schneider Electric) Type S line. These devices are used primarily for switching power to electric motors or other heavy industrial loads. --- ## 1. Part Number Breakdown Understanding the electronic and mechanical composition requires dissecting the model code: | Segment | Code | Meaning | | :--- | :--- | :--- | | **Product Type** | 8502 | NEMA Magnetic Contactor (Non-reversing) | | **Size** | S | NEMA Size 1 (Rated for approx. 27A / 7.5-10 HP) | | **Type** | CO | Open style (No enclosure) | | **Poles** | 2 | 2-Pole configuration | | **Voltage Code** | V08 | 208V AC, 60Hz control circuit voltage | | **Modification** | S | Separate control circuit (Isolated coil supply) | | **Version** | V01 | Specific manufacturing revision or factory-set minor modification | --- ## 2. Key Electronic Components ### A. The Electromagnetic Coil (V08) This is the "brain" of the device. When 208V AC is applied to the coil terminals: * It creates a magnetic field that pulls the movable armature toward the stationary core. * **V08 Rating:** Specifically designed for 208V systems, common in North American industrial settings. * **Separate Control (S):** This indicates the coil is wired to be powered by a source other than the main power lines (e.g., from a control transformer). ### B. Power Contacts The device features heavy-duty silver-cadmium oxide contacts designed to withstand the "inrush" current of motors. * **NEMA Size 1:** Capable of handling continuous current up to 27 Amperes. * **2-Pole:** Designed to break two lines of a circuit (typically used for single-phase or specific DC applications). ### C. Mechanical Actuator The armature assembly links the electromagnetic movement to the physical opening and closing of the contacts. It includes high-tension springs to ensure rapid "breaking" of the arc when power is removed, preventing contact welding. --- ## 3. Technical Specifications | Feature | Specification | | :--- | :--- | | **Amperage Rating** | 27A (Continuous) | | **Control Voltage** | 208V AC @ 60 Hz | | **Mounting** | Surface / Panel Mount | | **Configuration** | Open (Must be installed in a cabinet) | | **Standard** | NEMA ICS 2, UL Listed, CSA Certified | --- ## 4. Typical Applications * **Motor Control:** Direct-on-line (DOL) starting for single-phase motors. * **Lighting Loads:** Controlling large banks of high-intensity discharge (HID) or LED lighting. * **Heating Elements:** Switching industrial resistive heaters in ovens or furnaces.