The **M3SWVS-5AY-R/K** is a specific technical configuration of a **Pressure Switch**, commonly used in industrial automation, HVAC systems, or fluid control. This part number follows a modular nomenclature used by manufacturers such as **Mame Shiba** or similar industrial sensor providers. --- ### 1. Component Identification This device is an electromechanical sensor designed to open or close an electrical circuit when a specific pressure threshold is reached. | Specification | Details | | :--- | :--- | | **Component Type** | Electromechanical Pressure Switch | | **Circuit Configuration** | SPDT (Single Pole Double Throw) | | **Media Compatibility** | Non-corrosive liquids and gases | | **Housing Material** | Metallic (Zinc/Aluminum alloy or Stainless Steel) | --- ### 2. Breakdown of Part Number Components While specific prefixes vary by brand, the "M3SWVS" series generally breaks down as follows: * **M3/SW**: Series designation for "Micro-Switch" or "Standard Switch" housing. * **VS**: Vacuum/Pressure Sensing (Indicates it can handle vacuum or positive pressure). * **5AY**: Electrical Rating. Usually indicates a **5 Amp** capacity with specific terminal types (A-type or Y-type lugs). * **R/K**: Specification for the Pressure Range or the Mounting Bracket style. --- ### 3. Electrical Characteristics The "Electronic" side of this mechanical part focuses on its switching capability and contact resistance. | Parameter | Typical Value | | :--- | :--- | | **Max Voltage** | 250V AC / 30V DC | | **Current Rating** | 5 Amps (Resistive) | | **Contact Material** | Silver Alloy (for high conductivity and arc resistance) | | **Insulation Resistance** | 100MΩ Min (at 500V DC) | | **Dielectric Strength** | 1,500V AC for 1 minute | --- ### 4. Connection Diagram The device typically utilizes three terminals to allow for normally open (NO) or normally closed (NC) operation. ```text [Common Terminal] | ________|________ / \ [Normally] [Normally] [ Closed ] [ Open ] ``` ### 5. Application Use Cases 1. **Safety Cut-off:** Disconnecting power to a pump if the pressure exceeds safe limits. 2. **Filter Monitoring:** Sensing a pressure drop across a filter to trigger a "Change Filter" light. 3. **Vacuum Control:** Maintaining a specific vacuum level in industrial processing equipment. ---