Pack of 10 V1561C25 Roller Lever Arm Limit Switches (SPDT, 1NO/1NC, 3Terminal, Momentary) Why choose this limit switch Flexible switching: SPDT contact arrangement provides one normally open (NO) and one normally closed (NC) contact in a single compact unit for versatile control and wiring options. Positive, repeatable action: Momentary operation with a roller lever arm delivers reliable position sensing and consistent actuation for mechanical endoftravel or safety detection. Easy integration: Three clearly defined terminals (COM, NO, NC) and a roller actuator make wiring and mechanical interfacing straightforward for replacements or installations. Economical pack: Supplied as a set of 10 identical V1561C25 switches for multipoint installations, spares, or batch projects. Key features and attributes Model: V1561C25 Actuator: Roller lever arm Contact configuration: SPDT (Single Pole Double Throw) Contacts: 1NO (normally open) and 1NC (normally closed) Terminals: 3terminal connection (COM, NO, NC) Operation: Momentary (spring) Quantity: 10 pieces per pack How this switch solves common problems Replaces worn or failed endstop switches with a compatible mechanical interface without redesigning circuits. Provides both NO and NC outputs for systems that require redundant or alternate signaling from a single mechanical actuator. Roller lever reduces friction at the contact point, helping maintain consistent trigger force and prolonging effective mechanical life. Typical applications Machinery and automation: Detect endoftravel or object presence on conveyors, slides, and actuators. Electronic equipment and DIY projects: Use as limit switches, safety interlocks, or input triggers for controllers and microcontrollers. Home and commercial devices: Door, shutter, or drawer position sensing and simple on/off control where a momentary mechanical input is needed. Installation and wiring tips Identify the three terminals: COM (common), NO (normally open), and NC (normally closed). Wire to COM and NO for a circuit that closes only when the lever is actuated; wire to COM and NC for a circuit that opens when actuated. Mount the switch so the roller lever engages predictably with the moving part; allow for the momentary, spring action in the travel distance. Verify correct orientation and mechanical alignment before final installation to ensure reliable operation and avoid overstressing the lever. What's included 10 × V1561C25 roller lever arm limit switches (SPDT, 1NO/1NC, 3 terminals, momentary) Compact, interchangeable, and practical for a wide range of mechanical sensing tasks, this 10piece set of V1561C25 switches provides a straightforward way to add reliable momentary limit switching to your equipment or projects.