this appears to be an MRS 2-Pin Circular Aviation Connector (also known as a metal circular panel-mount connector with cable plug and socket). The exact model number cannot be confirmed from the image alone, but the following are the standard specifications for an MRS 2-Pin Connector. MRS 2 Pin Circular Connector – Full Specification Parameter Specification Product Name MRS 2 Pin Circular Connector Connector Type Circular Aviation Connector Number of Pins 2 Pin Gender Male Plug & Female Panel Socket Mounting Type Panel Mount Socket + Cable Mount Plug Coupling Type Threaded Screw Lock Contact Material Brass Contact Plating Silver Plated / Nickel Plated Housing Material Zinc Alloy Housing Finish Nickel Plated Insulator Material Bakelite / High Temperature Thermoset Plastic Rated Voltage 250V AC Rated Current 5A–10A (Depending on Model) Contact Resistance ≤5mΩ Insulation Resistance ≥1000MΩ @ 500V DC Dielectric Strength 1500V AC for 1 Minute Operating Temperature -25°C to +85°C Protection Grade IP54 (When Mated) Mechanical Life 500–1000 Mating Cycles Wire Size 0.5–1.5mm² (20–16 AWG) Cable Diameter 4–8mm Termination Solder Type Locking Method Screw Thread Lock Shell Color Silver Insulation Color Black Physical Dimensions (Approx.) Dimension Value Connector Diameter 16–20 mm Panel Cut-out 16 mm Male Plug Length 45–55 mm Panel Socket Length 20–25 mm Thread Size M16 × 1.0 (Approx.) Pin Diameter 2.5 mm Features Heavy-duty metal construction Secure threaded locking mechanism Excellent vibration resistance Corrosion-resistant nickel-plated housing Easy solder termination Compact and durable design Suitable for repeated plug/unplug operations Reliable electrical performance Applications Industrial control panels Power supplies LED lighting systems Automation equipment Test and measurement instruments Audio equipment CNC machines Communication devices Robotics Electronic projects Medical equipment Laboratory instruments Package Includes 1 × 2-Pin Male Cable Connector 1 × 2-Pin Female Panel Mount Socket Mounting Nut and Washer Note: Since 'MRS 2 Pin' connectors are available in multiple sizes (such as M12, M16, M20, etc.), the exact electrical ratings and dimensions may vary by manufacturer. If you need the exact datasheet, please provide the connector's model number or the shell diameter (e.g., M16 2 Pin, M20 2 Pin, etc.).
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