The **OR2-E-R** is a specific part number typically associated with **Power Relays**, often manufactured by companies like *OEG (a brand of TE Connectivity)* or similar electronic component vendors. These are electromagnetic switches used to control high-power circuits with a low-power signal. --- ### 1. General Specifications While specific datasheets can vary slightly by manufacturer, the "OR2" series generally follows these technical parameters: | Feature | Typical Specification | | :--- | :--- | | **Contact Form** | 1 Form C (SPDT - Single Pole Double Throw) | | **Contact Material** | Silver Alloy (AgNi or AgSnO) | | **Rated Load** | 10A to 12A @ 250VAC / 30VDC | | **Coil Voltage** | Usually 5V, 12V, or 24V DC (indicated by suffixes) | | **Mounting Type** | Through-hole PCB Mount | | **Dielectric Strength** | 2,500V - 5,000V AC between coil and contacts | --- ### 2. Breakdown of the Part Number The alphanumeric code provides specific details about the component's construction: * **OR2**: The base series designation (Power PCB Relay). * **E**: Often indicates the sealing/enclosure type (e.g., "E" for Flux-proof or "S" for Wash-tight). * **R**: Generally refers to the packaging method (e.g., Tape & Reel) or a specific ROHS compliance / Revised version status. --- ### 3. Internal Components & Operation The OR2-E-R consists of several critical electronic and mechanical parts: 1. **The Coil:** A copper wire winding that creates a magnetic field when energized. 2. **The Armature:** A moving metal piece attracted by the magnetic field. 3. **Contacts:** The "switches" (Common, Normally Open, Normally Closed) that open or close the electrical path. 4. **Spring:** Returns the armature to its original position when the coil is de-energized. 5. **Pins:** Conductive terminals that allow the relay to be soldered onto a Printed Circuit Board (PCB). --- ### 4. Common Applications Due to its compact size and high switching capacity, it is used in: * **Home Appliances:** Control boards for washing machines and refrigerators. * **HVAC Systems:** Controlling fans, motors, or heaters. * **Industrial Automation:** Interfacing between PLCs and heavy machinery. * **Power Strips:** For surge protection and remote switching. ---