SICK WT18-3P430 Photoelectric sensor 1025896
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SICK WT18-3P430 Photoelectric Sensor (Order No. 1025896)
1. Product Overview
The SICK WT18-3P430 is a compact retro-reflective photoelectric sensor from SICK’s WT18 series, engineered for reliable non-contact object detection in industrial automation environments. It features a high-performance infrared LED light source, polarized optics, and a PNP normally open (NO) output, with a maximum switching distance of 5 m for standard retro-reflective tape (SICK PL80A). Designed for versatility, this sensor excels in packaging, material handling, conveyor systems, and assembly line applications, delivering consistent detection of both opaque and semi-transparent targets while resisting ambient light interference. Housed in a rugged, compact ABS/metal hybrid casing with an IP67 protection rating, it withstands dust, water immersion, and industrial vibration, ensuring stable operation in harsh factory conditions. The sensor operates on a 10–30V DC power supply, integrates a 4-pin M12 male connector for quick plug-and-play installation, and requires no complex calibration—making it a cost-effective, low-maintenance solution for high-speed and high-volume production processes. It is certified to international industrial standards, ensuring seamless integration into global automation systems.
2. Main Functions
| Function | Detailed Description |
|---|---|
| Retro-Reflective Object Detection | Emits an infrared beam to a retro-reflective tape and detects target interruption, enabling reliable non-contact detection of objects up to 5 m away. |
| Polarized Optic Anti-Glare Detection | Polarization filter technology eliminates false triggers from reflective backgrounds (e.g., metal, plastic) and ambient light, ensuring precise target identification. |
| PNP NO Digital Output | Delivers a stable PNP normally open signal (max 100 mA) to interface with PLCs, relays, and control systems, enabling real-time process automation and alarm triggering. |
| High-Speed Target Detection | Fast response time and high switching frequency support detection of fast-moving objects on conveyor belts and high-speed assembly lines, minimizing production delays. |
| Harsh Environment Operation | IP67-rated housing protects against dust, water immersion (1 m for 30 mins), and vibration, ensuring consistent performance in demanding industrial settings. |
| Plug-and-Play Integration | 4-pin M12 male connector enables tool-free, secure installation and quick replacement, reducing downtime during maintenance and system reconfiguration. |
| Overload & Short-Circuit Protection | Built-in electronic protection circuitry safeguards the sensor and connected equipment from electrical damage, enhancing long-term system reliability. |
| Wide Voltage Compatibility | Operates on 10–30V DC power, compatible with standard industrial power supplies and flexible for integration into diverse automation setups. |
3. Technical Features
- Polarized Retro-Reflective Optics: Eliminates background reflection and glare interference, ensuring accurate detection of opaque, semi-transparent, and low-reflectivity targets without false triggers.
- High-Power Infrared LED Source: 880 nm wavelength infrared LED provides a strong, focused light beam, maintaining detection reliability even at the maximum 5 m switching distance.
- Compact & Robust Hybrid Casing: ABS plastic body with metal mounting components balances lightweight design and structural durability, fitting into space-constrained installation areas.
- IP67 Ingress Protection: Dust-tight and water-immersion resistant construction protects internal electronic components from industrial contaminants and liquid exposure.
- Maintenance-Free Operation: Factory-calibrated sensitivity and fixed optics eliminate the need for on-site adjustment, reducing operational complexity and maintenance costs.
- Fast Response & Switching Speed: Optimized electronic circuitry delivers ultra-fast response and high switching frequency, ideal for high-throughput automation processes.
- Comprehensive Electrical Protection: Integrates short-circuit, overload, and reverse polarity protection, preventing sensor damage and ensuring safe operation in industrial electrical environments.
- International Standard Compliance: Meets IEC/EN industrial standards for photoelectric sensors, ensuring compatibility and safety for global automation system integration.
4. Product Dimensions (Unit: mm)
| Dimension Parameter | Value |
|---|---|
| Overall Length (L) | 62 |
| Overall Width (W) | 18 |
| Overall Height (H) | 32 |
| Mounting Hole Diameter | 3.5 |
| Mounting Hole Spacing (Center-to-Center) | 50 |
| Light Emission/Reception Window Size | 8 × 12 |
| Connector Protrusion Length | 10 |
| Housing Mounting Thread | M18 × 1 (partial) |
| Front Window Material | PMMA (Acrylic) |
| Connector Type | 4-pin M12 Male (axial) |
5. Weight and Material Specifications
| Component | Material | Weight (g) |
|---|---|---|
| Main Housing | ABS Plastic (flame-retardant) | 35 |
| Mounting Structure | Zinc-Plated Steel | 15 |
| Front Optic Window | PMMA (Acrylic) | 4 |
| Infrared LED & Detector Module | Semiconductor + FR-4 Substrate | 8 |
| Circuit Board Assembly | FR-4 Epoxy Resin + Electronic Components | 12 |
| Seals & O-Rings | Nitrile Rubber (NBR) | 3 |
| 4-Pin M12 Connector | Brass Contacts + PVC Insulation | 7 |
| Total Weight (Assembly) | – | 84 |
6. Key Performance Parameters
| Parameter | Value |
|---|---|
| Detection Principle | Polarized Retro-Reflective |
| Maximum Switching Distance | 5 m (with SICK PL80A retro-reflective tape) |
| Light Source | Infrared LED (880 nm) |
| Output Type | PNP Normally Open (NO) |
| Output Current Capacity | Max 100 mA (30V DC max) |
| Response Time | ≤1 ms |
| Switching Frequency | 500 Hz |
| Supply Voltage Range | 10 – 30V DC |
| Current Consumption (No Load) | ≤15 mA |
| Ambient Light Immunity | 100,000 lx (sunlight), 30,000 lx (artificial light) |
| Operating Temperature Range | -25°C to +55°C |
| Storage Temperature Range | -40°C to +70°C |
| Ingress Protection Rating | IP67 (EN 60529) |
| Vibration Resistance | 10–500 Hz, 2 g (EN 60068-2-6) |
| Shock Resistance | 30 g (11 ms, EN 60068-2-27) |
| Electrical Protection | Short-circuit, overload, reverse polarity |
| Order Number | 1025896 |
WHO WE ARE
About us
Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.
Atifts Technology Co., Ltd. @ 2024
Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers.
Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
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We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.
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We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.
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