Product Description

​The Pepperl+Fuchs RLK39-54-Z/31/40A/116 is a retroreflective photoelectric sensor designed for standard industrial applications requiring reliable object detection. It utilizes modulated visible red light and features a polarization filter to prevent glare, ensuring stable performance even in challenging environments. The sensor offers a detection range of up to 5 meters with the included H50 reflector, and its light-on/dark-on switching mode is adjustable to suit various operational needs. Additionally, it incorporates a timer function for on-delay, off-delay, or pulse extension, providing flexibility in timing applications.

Technical Specifications

• Effective Detection Range: 0 to 5 meters​
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• Reflector Distance: 0.1 to 5 meters​
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• Threshold Detection Range: Up to 6 meters with H50 reflector​
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• Light Source: Red LED emitting modulated visible red light​
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• Polarization Filter: Yes, to prevent glare​
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• Switching Mode: Light-on/dark-on, switchable​
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• Timer Function: Selectable on-delay, off-delay, or pulse extension​
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• Operating Voltage: 12 to 240 V DC or 24 to 240 V AC (50/60 Hz)​
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• No-Load Supply Current: ≤ 50 mA​
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• Output: Relay contact with light-on/dark-on switching; maximum switching voltage of 240 V AC or 150 V DC; maximum switching current of 3 A; maximum switching power of 90 W DC or 750 VA AC​
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• Response Time: ≤ 20 ms​
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• Degree of Protection: IP54​
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• Ambient Temperature Range: -25°C to +55°C​
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• Housing Material: PBT (Polybutylene Terephthalate)​
• Dimensions: 64 mm (height) x 25 mm (width) x 75 mm (depth) Compliance Standards: CE, UL, cUL, RoHS compliant