Based on the part number **M2PHS2L-A11-R2**, this component belongs to the **M2PH series** of miniature illuminated push-button switches, typically manufactured by **Omron** or similar industrial control component suppliers. These are commonly used in control panels, rack systems, and automation interfaces. --- ### 1. Component Breakdown The alphanumeric code identifies specific physical and electrical characteristics: | Code Segment | Description | Details | |:---|:---|:---| | **M2P** | Series Type | Miniature square/rectangular push-button switch. | | **H** | Housing Style | High-intensity or specific mounting style (often snap-in). | | **S** | Shape | Square (Standard size). | | **2L** | Illumination | LED Lamp (usually high-brightness). | | **A** | Operation | Alternate action (Push-ON, Push-OFF / Latching). | | **11** | Contact Form | SPDT (Single Pole Double Throw) - 1 NO + 1 NC. | | **R** | Color | Red Lens/LED. | | **2** | Voltage | 24V DC/AC (Standard industrial control voltage). | --- ### 2. Electrical Specifications The electrical integrity of the switch is designed for low to medium power logic switching. * **Rated Voltage:** 24V AC/DC. * **Contact Resistance:** Max 50 mΩ. * **Insulation Resistance:** 100 MΩ min. (at 500 VDC). * **Dielectric Strength:** 1,000 VAC, 50/60 Hz for 1 minute between terminals of the same polarity. * **Life Expectancy:** * *Mechanical:* 1,000,000 operations min. * *Electrical:* 100,000 operations min. --- ### 3. Key Electronic Features * **Integrated Resistor:** Because it is rated for 24V, the unit typically includes an internal current-limiting resistor for the LED, allowing direct connection to a 24V power supply without external components. * **Contact Mechanism:** Usually employs a "Snap-action" mechanism to ensure crisp tactile feedback and reduce electrical arcing. * **Terminal Type:** Solder terminals are standard, though some variants support wire-wrap or PCB mounting. --- ### 4. Typical Applications These switches are engineered for environments where visual feedback is critical: * **Industrial Control Panels:** Indicating system "Run" or "Error" states. * **Telecommunications:** Signal routing and rack power control. * **Medical Equipment:** User interface buttons requiring high reliability. ---