The **M2PHS2L-A1-R/CE** is a specific part number belonging to the **M2PH series** of industrial push-button switches, typically manufactured by **IDEC** or similar automation component suppliers. This model is characterized by its miniature size, square head, and illuminated functionality. --- ## 1. Technical Specifications Below are the primary electronic and mechanical specifications for this component: | Feature | Specification | | :--- | :--- | | **Series** | M2PH (Miniature Control Units) | | **Head Shape** | Square | | **Operation Type** | Momentary (Non-locking) | | **Illumination** | LED Integrated | | **Voltage Rating** | 24V AC/DC (Standard for R/CE suffix) | | **Contact Configuration** | 2PDT (Double Pole Double Throw) | | **Termination** | Solder/Tab Terminal | | **Mounting Hole** | 16mm (Approx.) | --- ## 2. Part Number Breakdown Understanding the electronic behavior requires looking at the suffix codes: * **M2P**: Indicates the series (16mm Miniature size). * **HS**: Represents the **Square** head type. * **2**: Indicates the contact arrangement (**2PDT / 2C**). This means the switch can control two separate circuits simultaneously. * **L**: Denotes **Illuminated**. The switch contains an internal light source. * **A1**: Relates to the specific mounting and physical construction (often "Flush" mount). * **R**: Specifies the LED color (**Red**). * **CE**: Indicates compliance with European Safety Standards (**CE Marking**). --- ## 3. Electronic Design & Internal Circuitry ### Contact Block The **2PDT** (Double Pole Double Throw) configuration consists of two sets of contacts. Each set has: 1. **COM (Common)**: The input terminal. 2. **NC (Normally Closed)**: Conducts electricity when the button is *not* pressed. 3. **NO (Normally Open)**: Conducts electricity only when the button *is* pressed. ### Illumination Circuit The LED is electrically isolated from the switch contacts. This allows you to: * Light the button when the circuit is active. * Keep the button lit constantly as a pilot light. * Flash the button via an external PLC output. --- ## 4. Typical Applications These switches are used in control panels where space is limited but high reliability is required: * **Industrial Automation**: Start/Stop signals for PLC inputs. * **Medical Equipment**: Compact user interface controls. * **Test Instruments**: Function selection with visual feedback. * **Control Consoles**: Status indication (Red usually signifies "Stop" or "Error"). ---