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Specification & Description
| Specification | Description |
|---|---|
| Part Number | WEU26/3-103A00 |
| Alternative Part Number | WEU263103A00 |
| Manufacturer | Sick |
| Product Type | Single Beam Photoelectric Safety Switch |
| Series | WEU26/3-1 |
| Detection Range | 0.5 to 20 metres |
| Output Type | Relay |
| Connection Type | Cable Gland |
| Supply Voltage | 24 V dc |
| Dimensions | 50 x 116 x 173.5 mm |
| Response Time | ≤ 22 ms |
| Number of Beams | 1 |
| Safety Integrity Level | SIL3 (IEC 61508) |
| Performance Level | PL e (EN ISO 13849) |
| Category | Category 4 (EN ISO 13849) |
| B10d Value | 1 x 10^6 to 2 x 10^5 operation cycles depending on voltage and current conditions |
| PFHD | 4.0 x 10^-9 (EN ISO 13849) |
| Operating Lifetime | 20 years (EN ISO 13849) |
| Safe State in the Event of a Fault | At least one OSSD is in the OFF state. |
| Connection Type | PG (13.5) |
| Indicators | LEDs |
| Protection Class | I (EN 50178) |
| Housing Material | Die-cast aluminium |
| Front Lens Material | Polycarbonate with scratch-resistant coating |
| Weight | ≤ 1 kg |
| Environmental Rating | IP67 (EN 60529) |
| Operating Temperature Range | –25 °C to +55 °C |
| Storage Temperature Range | –25 °C to +70 °C |
| Humidity Range | 15% to 95%, non-condensing |
| Vibration Resistance | 5 g, 10 Hz to 55 Hz (IEC 60068-2-6) |
| Shock Resistance | 10 g, 16 ms (IEC 60068-2-29) |
| Commodity Code | 853650 |
The Sick WEU26/3-103A00 is a high-performance single-beam photoelectric safety switch designed to offer reliable and efficient safety solutions for a variety of industrial applications. This robust block-style sensor is engineered to ensure the protection of personnel and equipment by detecting the presence or absence of objects within a range of 0.5 to 20 meters.
Crafted with a durable cast aluminium housing and a scratch-resistant polycarbonate front lens, the WEU26/3-103A00 is built to withstand harsh industrial environments, boasting an IP67 rating for dust and water resistance. Its dimensions of 50 x 116 x 173.5 mm make it a compact yet powerful safety device suitable for integration into a wide range of machinery and safety systems.
The unit operates on a 24 V DC supply and features relay switching outputs, capable of handling switching voltages from 10 V DC to 30 V DC, and 10 V AC to 230 V AC, with a current capacity per OSSD of 0.02 A to 2 A. The contacts are made from a silver alloy with gold plating, ensuring longevity and reliability with an electrical life of at least 1 x 10^5 switching cycles and a mechanical life of at least 1 x 10^7 cycles.
With a quick response time of ≤ 22 ms and the ability to detect objects as small as 30 mm, the WEU26/3-103A00 is an excellent choice for applications requiring precise and timely detection. It also features optical synchronisation and front lens heating for optimal performance in diverse conditions.
The safety switch is classified as Type 4 according to IEC 61496-1 standards, with a Safety Integrity Level of SIL3 (IEC 61508) and a Category 4 rating (EN ISO 13849), ensuring the highest level of safety for your operations. The Performance Level is PL e (EN ISO 13849), and it has a B10d value indicating a high level of reliability.
For those seeking a reliable safety solution that combines durability, precision, and compliance with the highest safety standards, the Sick WEU26/3-103A00 single-beam photoelectric safety switch is an outstanding choice.
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Frequently Asked Questions
What is the operating range of the single-beam photoelectric safety switch?
The operating range of the single-beam photoelectric safety switch is between 0.5 to 20 meters, providing flexibility for various industrial applications.
Can this safety switch be used in outdoor environments?
Yes, the safety switch is designed with a robust housing rated IP67, making it suitable for both indoor and outdoor use, as it is protected against dust and temporary water immersion.
What type of outputs does this safety switch provide?
The WEU26/3-103A00 safety switch is equipped with relay outputs, which are suitable for direct interfacing with control systems and emergency circuits.
What is the response time of this safety switch?
The safety switch has a response time of ≤ 22 ms, ensuring quick detection and reaction to safety incidents in the workplace.
What are the electrical requirements for this safety switch?
The safety switch requires a supply voltage of 24 V DC, within a range of 19.2 V DC to 28.8 V DC, and has a power consumption of ≤8W.
What is the size and construction of the safety switch?
The safety switch has a block construction with dimensions of 50 x 116 x 173.5 mm, and it is made from die-cast aluminium with a polycarbonate front lens.
What is the maximum load current for the safety outputs?
The safety outputs can handle a load current ranging from 0.02 A to 2 A, allowing for integration with a variety of safety systems.
How does the safety switch handle extreme temperatures?
The safety switch can operate within a temperature range of –25 °C to +55 °C and can be stored in temperatures ranging from –25 °C to +70 °C.
What certifications does the safety switch have?
The safety switch is certified to meet Type 4 according to IEC 61496-1, SIL3 according to IEC 61508, and Category 4 and Performance Level e according to EN ISO 13849, ensuring high levels of functional safety.
How can I ensure the safety switch is correctly aligned during installation?
Alignment accessories are available for the safety switch to ensure precise installation and optimal performance. It's recommended to use these tools for accurate alignment.
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