The **M2MS-6-R/K** is a specific electronic component, typically classified as a **miniature selector switch** or a rotary-style switch used in industrial control panels and electronic instrumentation. Below is a detailed breakdown of its specifications, construction, and typical use cases. --- ## 1. Technical Specifications The "M2MS" series usually refers to 16mm or 22mm mounting diameter switches. Here are the common electrical and physical characteristics: | Feature | Description | | :--- | :--- | | **Mounting Diameter** | 16mm (Standard for M2MS series) | | **Operation Type** | Maintained (Stays in position) or Momentary | | **Positions** | 2-Position or 3-Position (indicated by the numeric suffix) | | **Contact Configuration** | SPDT (Single Pole Double Throw) or DPDT | | **Current Rating** | Typically 3A to 5A at 250VAC | | **Terminal Type** | Solder or Quick-connect terminals | | **Illumination** | Non-illuminated (usually indicated by the 'R' or 'K' suffix) | --- ## 2. Part Number Breakdown While manufacturer codes vary slightly, the nomenclature generally follows this logic: * **M2MS**: The series designation (Miniature Selector Switch). * **6**: Often refers to the mounting hole size (16mm) or a specific handle style. * **R**: Usually denotes **Round** shape bezel. * **K**: Often denotes **Key-operated** or a specific color/knob variant (Black/Key). --- ## 3. Internal Construction The switch consists of three primary electronic/mechanical sections: ### A. The Operator (Head) The visible part on the outside of the panel. In the **-R/K** variant, this is a knob or a key-lock mechanism. It translates mechanical rotation into internal movement. ### B. Contact Block The "electronic" heart of the part. It contains the silver or gold-plated contacts. * **Normally Open (NO):** Circuit is broken until the switch is turned. * **Normally Closed (NC):** Circuit is continuous until the switch is turned. ### C. Housing (Body) Made from high-grade plastics (like Polycarbonate) to provide insulation and heat resistance. --- ## 4. Typical Applications These switches are found in environments where space is limited but manual control is required: 1. **Industrial Control Panels:** For selecting modes (e.g., Manual vs. Auto). 2. **Medical Equipment:** Power sequencing or mode selection. 3. **Laboratory Instruments:** Switching between different sensor inputs. 4. **Security Systems:** Key-operated versions are used to arm/disarm systems. ---