The 1840 mm protective height covers a full reach-in zone, and the 0.3 m to 20.0 m operating range gives you flexibility for short or long spans across a guarded opening. With 92 beams at a 20 mm pitch, it creates a dense detection field that catches a hand or arm before it reaches the pinch point. The 24 VDC supply is standard for safety circuits, and the IP65/IP67/IP67G rating means the housing and optics hold up to washdown environments — oil-resistant, dust-tight, and waterproof, so it's suited for food-and-bev lines or machining centers where coolant spray is constant.
The 25 mm detection capability is the critical spec: it's rated for hand protection per IEC 61496, meaning it catches a typical hand or finger reaching toward the danger zone. That's a step above a 30 mm or 40 mm curtain, which would only detect an arm or torso. If your risk assessment calls for finger-level safety, this is the right resolution. The 1840 mm protective height covers a full standing operator's reach — think a press brake or robotic cell where the guard needs to span from below the waist to above shoulder height. The 20 m range handles longer spans across a conveyor or gantry, but note the minimum range is 0.3 m, so it won't work for very tight spaces right at the emitter.
Safety light curtains like this one are installed around hazardous machinery — presses, robots, packaging lines, assembly stations — to create a guarded area that stops the machine when an operator's hand or body enters the field. The blanking and muting functions (noted in the features) allow you to mask fixed obstructions or temporarily bypass the curtain for material pass-through, which is common in automated palletizing or conveyor merge points.