TZ3104 4Wire Roller Lever Plunger Limit Switch — reliable mechanical position detection with flexible wiring Why you need it Provides simple, dependable position sensing and overtravel protection for machines and equipment. SPDT (NO + NC) output gives immediate choice between normally open and normally closed operation without extra components. Includes 3 meter copper leads for flexible installation and safer distance from control panels. Key benefits Versatile switching: The SPDT (singlepole, doublethrow) arrangement gives both NO and NC contacts, letting you wire the switch for failsafe or active sensing as required. Smooth, repeatable actuation: Roller lever + plunger actuator converts linear or rotary movement into a positive switching action for consistent operation. Flexible installation: Fourwire design and long copper leads (3 m) let you mount the switch where it fits and route wiring neatly to controllers or relays. Durable and lowmaintenance: Mechanical design for straightforward, longterm service in many applications. Product highlights Model: TZ3104 Type: Roller lever plunger limit switch Contact configuration: SPDT (NO + NC) Wiring: 4wire with copper conductors Lead length: 3 meter copper wire included Actuator: Roller lever and plunger for reliable contact operation What it does well Detects endoftravel, presence, or position changes and translates them into a clean electrical contact change for control systems. Lets you choose normally open or normally closed behavior without swapping parts. Long copper leads reduce the need for immediate junctions or extra cable runs during installation. Typical applications Conveyor systems: Detect package or belt position for indexing, stopping, or counting operations. Machine tools and CNC equipment: Provide home or limit detection for axes and safety cutoffs. Doors, gates and automated assemblies: Act as endoftravel switches for garage doors, shutters, or actuatordriven mechanisms. Installation notes Mount the TZ3104 where the roller lever will be engaged by the moving part; the 3 m copper leads allow easy routing back to control panels or relays. Use the SPDT contacts to wire either NO or NC behavior depending on your control logic. Designed for straightforward replacement or retrofit into existing limit switch applications. The TZ3104 4Wire Roller Lever Plunger Limit Switch with SPDT NO+NC and 3 meter copper wire is a simple, adaptable solution when you need reliable mechanical position detection and flexible wiring for industrial, commercial, or DIY equipment.