Overview
The Omron WLNJ-S2TS limit switch delivers reliable detection and control in demanding industrial environments. This WL series robust general purpose limit switch features a proven diecast housing design with rugged mechanical construction, making it ideal for position sensing and machine control in manufacturing, packaging, material handling, and automation systems.
Key Features
- Double-break snap-action contact design reduces arcing and ensures dependable operation
- Flexible rod (steel wire) actuator with coil spring—tolerates various workpiece shapes and approach angles
- IP67 degree of protection—sealed against dust and water ingress in workshop and washdown environments
- Compact diecast housing—durable, vibration-resistant construction
- Wide selection of head shapes and actuators to match operating environment
- Direct-wired, pre-wired, and screw terminal connection options
Technical Specifications
- Part Number: WLNJ-S2TS / WLNJ-S2TS-N
- Switch Type: 2-circuit, DPDB (double-pole, double-break) snap-action
- Actuator: Flexible rod (spring-loaded stainless steel wire)
- Pretravel: 15°±5° (at rod top)
- Electrical Rating (Standard): 10A at 250VAC / 6A at 30VDC (resistive/non-inductive load)
- Alternative Rating: 16A at 250VAC / 10A at 28VDC
- Contact Resistance: ≤10Ω
- Insulation Resistance: ≥1000MΩ
- Operating Temperature Range: -20°C to +130°C
- Enclosure Type: Metal diecast housing
- Degree of Protection: IP67 (IEC 60529)
- Mounting: 1/2″-14NPT threaded port with ground terminal
- Certifications: UL-Listed, RoHS compliant
- Series: Omron WL-N (General Purpose Limit Switch)
- Condition: New in Box
Typical Applications
The WLNJ-S2TS is suited for position detection, end-of-travel sensing, and safety interlocking in:
- Automated manufacturing machinery and assembly systems
- Material handling conveyors and sorting equipment
- Packaging machines requiring reliable position feedback
- CNC and machining centers—tool changers, workpiece clamping
- Doors, gates, and access control systems
- Washdown and wet environments—robust IP67 seal
- Food and beverage processing (hygienic stainless steel actuator option)
Compatibility & Replacements
Compatible With
- Allen-Bradley ControlLogix and CompactLogix PLC controllers
- Siemens S7-1200, S7-1500, and S7-400 controllers
- Omron CJ, NX, and NJ series PLCs
- EtherNet/IP and PROFINET gateway modules
- Standard 24VDC logic circuits and discrete I/O modules
- Safety relay modules and PLd/PLe safety systems
Replaces / Drop-In Replacement For
- Omron WLNJ-TS (standard single-circuit variant—verify circuit requirements)
- Omron WLNJ-2TS (similar series with different actuator options)
- Eaton/Cutler-Hammer E50DL limit switches (verify terminal configuration)
- Honeywell limit switch models in equivalent ratings (16A @ 250VAC class)
Works With
- Studio 5000 and RSLogix 5000 (Rockwell Automation discrete I/O programming)
- TIA Portal (Siemens STEP 7)
- Omron CX-Programmer and Sysmac Studio
- Standard 24VDC control circuits with rated contact loads
- Hardwired safety interlocks and dual-channel safety logic
- EtherNet/IP, PROFINET, and Modbus I/O networks via appropriate gateways
