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WL8G-P2231

The SICK WL8G-P2231 is a Type 4 safety light curtain from the deTec4 Prime series, designed for access protection and perimeter guarding of machinery. It creates a vertical curtain of infrared light beams. When any single beam is interrupted, it sends a stop signal to the machine's safety control system, preventing access to a hazardous area and protecting personnel.

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Key Features & Specifications:

Feature Specification
Product Type Type 4 Safety Light Curtain (Per IEC 61496-1/2)
Protective Height 740 mm (This is derived from the model number: WL8G...P2231; the number of beams and spacing define the height).
Resolution (Beam Spacing) 30 mm (The "-P2231" suffix typically indicates this resolution). This resolution is suitable for hand and body detection.
Number of Beams 25 beams (For a 740mm height with 30mm spacing)
Safety Standards IEC 61496-1/2 (Type 4), EN ISO 13849-1 (Performance Level e, Category 4), EN IEC 62061 (SIL 3). Complies with international machinery safety directives.
Safety Integrity SIL 3 according to IEC 61508 / IEC 62061
Operating Range 0 m...25 m (The maximum distance between the transmitter and receiver units for reliable operation).
Response Time ≤ 20 ms (Fast response time to ensure the hazardous motion stops before a person can reach it).
Outputs 2 OSSD (Output Signal Switching Device) outputs. These are solid-state safety outputs (PNP) that switch to OFF when the beam is broken.
Control & Muting Supports advanced safety functions like Muting (temporarily disabling the safeguard for material flow) and Blanking (permanently ignoring a blocked beam for fixed obstructions).
Housing Robust, anodized aluminum profile with polycarbonate windows.
Connection M12 Connectors (Circular connectors) for power and interface connections, facilitating quick installation.
Application Access Guarding: Ideal for safeguarding the perimeter of robotic workcells, press brakes, packaging machines, and other automated equipment where full body access is a risk.