Overview
The Sick WS12-2D430 is a small-format through-beam photoelectric sensor designed for industrial automation and material detection. Operating from 10-30VDC, this sensor combines rugged M12 connectivity with IP67/IP69K enclosure protection. The WS12-2D430 emitter head delivers long-range detection across diverse industrial environments, from assembly lines to packaging systems.
Key Features
- Through-beam configuration for reliable long-distance object detection
- M12 4-pin connector — standard industrial coupling for quick installation and maintenance
- PNP output with complementary logic; 100 mA maximum output current
- IP67/IP69K enclosure rating — resistant to dust, moisture, and high-pressure washdown
- Metal housing with plastic PMMA optics for durability in harsh environments
- Switching frequency up to 2,500 Hz for dynamic detection applications
Technical Specifications
| Supply Voltage | 10–30 VDC |
| Power Consumption | ≤15 mA (receiver) |
| Output Type | PNP, complementary |
| Output Current | ≤100 mA |
| Response Time | ≤200 µs |
| Switching Frequency | 2,500 Hz |
| Connector Type | Male M12, 4-pin |
| Enclosure Rating | IP67 / IP69K |
| Housing Material | Metal |
| Optics Material | Plastic (PMMA) |
| Operating Temperature | −10 °C to +50 °C |
| Storage Temperature | −25 °C to +75 °C |
| Weight | 260 g |
| UL File | NRKH.E181493 & NRKH7.E181493 |
| Accessories | 2 × clamps BEF-KH-W12 (included) |
Typical Applications
- Packaging and labeling machinery — verifying package presence and positioning
- Conveyor systems — detecting product flow and line stoppages
- Assembly automation — monitoring part presence at workstations
- Material handling — high-speed counting and sorting operations
- Washdown environments — food, beverage, and chemical processing facilities
- Print registration — verifying web position and alignment
Compatibility & Replacements
Compatible With
- Programmable logic controllers (PLCs) with 10–30VDC input modules
- PLC platforms: Allen-Bradley, Siemens, Mitsubishi, Omron, Phoenix Contact
- Industrial automation networks requiring discrete NPN/PNP sensor inputs
- Relay modules and hardwired control cabinets
- Any system supporting standard M12 connector pinouts
Replaces / Drop-In Replacement For
- Sick WS12L-2D430 — functionally equivalent receiver head variant
- Equivalent Sick W12-series photoelectric sensors with matching voltage and output specs
- Verify exact compatibility with your system integrator before ordering
Works With
- M12 cable assemblies and circular connectors
- Standard industrial 24 VDC power supplies
- Discrete input modules across major PLC manufacturers
- Mounting brackets and alignment fixtures for through-beam installation



