Based on your query, the **V-03-R** typically refers to a specific series of **Miniature Basic Switches** (Microswitches), commonly manufactured by brands like Omron. These are electromechanical components used to detect physical motion or presence. --- ### 1. Key Technical Specifications The "V" series represents a standard high-capacity miniature switch. Below are the general electronic and physical characteristics: | Feature | Specification (Typical) | | :--- | :--- | | **Current Rating** | Generally 10A to 15A (depending on the V-series variant) | | **Voltage Rating** | 250 VAC / 125 VDC | | **Contact Form** | SPDT (Single Pole Double Throw) | | **Actuator Type** | Pin Plunger (Standard) or Lever variants | | **Operating Force** | ~1.96 N (Standard force) | | **Terminal Type** | Solder terminals, Quick-connect, or Screw | --- ### 2. Electronic Internal Components The V-03-R functions using a "snap-action" mechanism. Here are the internal electronic parts: 1. **Stationary Contacts:** Fixed points (Common, Normally Open, Normally Closed) that carry the load. 2. **Movable Contact:** A spring-loaded metal blade that "snaps" between the stationary contacts. 3. **Leaf Spring:** High-quality copper or alloy spring that ensures rapid switching to prevent electrical arcing. 4. **Plunger/Actuator:** The physical interface that translates external mechanical force to the internal spring. --- ### 3. Connection Diagram (SPDT) The switch typically features three terminals labeled as follows: ```text COM (Common) --------+ | NC (Normally Closed)-+ (Connected to COM when idle) | NO (Normally Open) --+ (Connected to COM when pressed) ``` --- ### 4. Applications Due to its reliability and high capacity, the V-03-R and its variants are used in: * **Home Appliances:** Door interlocks for microwaves or washing machines. * **Industrial Automation:** Limit switches for CNC machines or 3D printers. * **Safety Devices:** Emergency stop triggers or panel detection. ---