10Pcs Roller Lever Arm SPDT NO/NC Momentary MicroSwitches V1561C25 Why choose these micro switches Pack of 10 provides spare parts for maintenance, repairs, and multiple projects — reduces downtime and keeps systems running. SPDT (single pole, double throw) wiring with both NO (normally open) and NC (normally closed) contacts gives flexible installation options for different control schemes. Roller lever arm actuator delivers smooth, lowfriction engagement for reliable, repeatable triggering in mechanical linkages or moving parts. Momentary action ensures the switch only changes state while the actuator is pressed, ideal for limit sensing and precise position detection. Key attributes Quantity: 10 identical micro switches (convenient bulk replacement or multipoint installations). Model: V1561C25 — compact micro switch form factor commonly used in industrial and consumer equipment. Contact configuration: SPDT with NO and NC terminals for versatile circuit control. Actuator: roller lever arm for improved actuation geometry and reduced wear on the plunger. Operation: momentary (spring ) for temporary contact change while actuated. Design focus: compact size for tight spaces and mechanical linkage compatibility. How this solves problems Simplifies repairs: standard form and terminal options make these an easy dropin replacement for many common micro switch applications. Improves longevity: roller lever reduces direct side loading on the plunger, lowering mechanical wear and extending useful life. Reduces inventory complexity: buying a 10piece set ensures you have replacements when devices fail or when you are building multiple units. Typical applications Limit switches in automation and machinery: detect endoftravel or home positions on conveyors, actuators, and small machines. Appliance and enclosure sensors: detect lid/door closures, drawer positions, or safety interlocks in consumer and industrial equipment. DIY, robotics and hobby electronics: position sensors, end stops for 3D printers or CNC hobby machines, and custom control panels. Installation and usage tips Verify terminal assignment (common, NO, NC) before wiring to ensure correct behavior in your circuit. Use the roller lever to change the actuation point and direction if space or linkage requirements differ. Keep spare switches from the set for preventive maintenance to minimize service interruptions. Package contents 10 × Roller Lever Arm SPDT NO/NC Momentary MicroSwitches, model V1561C25 Compact, configurable, and supplied in a 10piece set, these V1561C25 micro switches are suitable for shops, production lines, and hobbyists who need reliable, repeatable momentary switching with flexible wiring options.