The **M2SES2-63-R/CE** is a high-performance **Selector Switch** manufactured by **ABB**. It is part of the "Modular" range of pilot devices, designed for industrial control panels to provide manual command inputs for machinery and electrical circuits. --- ### 1. Technical Specifications The following table summarizes the key electrical and physical characteristics of this specific model: | Parameter | Specification | | :--- | :--- | | **Series** | M2SES2 (Modular Series) | | **Type** | Selector Switch (Key Operated) | | **Actuator Style** | Key-locked | | **Number of Positions** | 2-position | | **Maintained / Momentary** | Maintained (Stays in position when turned) | | **Bezel Material** | Chrome Metal (indicated by "CE" / High Durability) | | **Color** | Red ("R" in the part number) | | **Degree of Protection** | IP66 (Dust-tight and protected against high-pressure water jets) | --- ### 2. Key Electronic & Mechanical Components #### A. The Actuator (M2SES2) The "M" stands for the **Modular** system. Unlike compact units, the modular design allows you to separate the operator (the key switch) from the contact blocks. This allows for easier maintenance and customization of the electrical logic. #### B. Contact Blocks (Sold Separately) While the M2SES2-63-R/CE refers to the front-of-panel operator, it functions by interacting with **MCB (Mounting Calibers)** and **Contact Blocks**: * **NC (Normally Closed):** Breaks the circuit when the key is turned. * **NO (Normally Open):** Completes the circuit when the key is turned. * The switch can typically accommodate up to 6 contact blocks depending on the mounting tool used. #### C. Key Functionality * **Throw Angle:** Usually a 90-degree throw between position A and B. * **Key Removal:** The "63" code typically dictates the key withdrawal positions (e.g., key can be removed in both positions or only in the "Off" position). --- ### 3. Applications and Usage This part is specifically used in environments requiring high security or restricted access: 1. **Safety Interlocks:** Ensuring only authorized personnel with a physical key can start or stop a machine. 2. **Mode Selection:** Switching between "Manual" and "Auto" modes in industrial PLCs. 3. **Harsh Environments:** The Chrome bezel and IP66 rating make it suitable for oil, gas, and heavy manufacturing sectors where chemical exposure or wash-downs occur. ---