Based on the product code **LEDRO25N**, this typically refers to a **25mm Round LED Indicator** or a specific series of industrial pilot lights (often associated with brands like *Schneider Electric* or *Moujen*). These components are designed for industrial control panels to signify the status of a machine or circuit. --- ### 1. Key Technical Specifications The "LEDRO25N" generally follows these electronic and physical standards: | Feature | Specification | | :--- | :--- | | **Mounting Diameter** | 25mm (Standard Industrial size) | | **Light Source** | High-intensity LED | | **Input Voltage** | Typically 24V AC/DC (though variants exist for 110V/220V) | | **Current Consumption** | $\leq$ 20mA | | **Protection Rating** | IP65 or IP67 (Dust and Water resistant) | | **Operating Life** | > 50,000 hours | --- ### 2. Internal Electronic Components Inside the housing of an LEDRO25N, you will find several critical electronic parts that ensure its functionality: * **LED Chip:** The core semiconductor that emits light. Modern versions use SMD (Surface Mount Device) LEDs for better heat dissipation and brightness. * **Current Limiting Resistor:** Protects the LED chip from burning out by restricting the amount of current flowing through the circuit. * **Rectifier Bridge (AC/DC models):** Allows the indicator to function regardless of polarity or on alternating current. * **Voltage Regulator/Dropper:** Ensures the LED receives a consistent voltage even if the input supply fluctuates slightly. * **Terminal Blocks:** Usually screw terminals or spade connectors for secure wiring in high-vibration industrial environments. --- ### 3. Connection and Wiring The wiring is straightforward, typically involving two terminals: ```mermaid graph LR A[Power Supply +] --> B[Terminal X1] C[Power Supply -] --> D[Terminal X2] subgraph LEDRO25N B --> E[Internal Circuitry] D --> E E --> F[LED Light] end ``` --- ### 4. Application Areas * **Control Panels:** To show "Power On" or "Fault" status. * **PLC Outputs:** To provide a visual confirmation of a digital output signal. * **Operator Stations:** Used alongside pushbuttons to indicate when a process is running. ---