Light Curtains

Safety light curtains are also known as safety light barriers or safety light screens. These optoelectronic devices are used to detect people present in the vicinity of moving machinery. Light curtains can be used as an alternative to mechanical barriers and other forms of traditional machine guarding. Set of light curtains contains transmitter head and receiver head. A transmitter generates an infra-red light between the two heads which acts as a detection zone. A movement detected within the detection zone initials the machine stopping procedure and automatically disconnect all hazardous machinery.

To reactivate the machinery, an operator has to press reset button that is positioned outside of the danger area. Some models are equipped with an auto-reset option that automatically starts machinery once the detection zone is free of obstacles. A response time of all light curtains is just a fraction of a second, it means that no other barrier type can compare to that.

Selecting the right light curtains

Maximum scanning distance and beam resolution are 2 important attributes that determine the right device for you. A distance between transmitter and receiver can be various from 0 to 20m and the choice depends on the type of machinery that is used in conjunction with the curtain.

Beam resolution determines detection capability, light curtains with 14 mm beam resolution are able to detect small body parts such as a finger, 20 mm ones are suitable for palm detection. Beam resolution of 20 mm and above are ideal for hand, head or full body detection. Typical beam resolution values are between 14mm to even 70 mm.

The physical size of curtains is also important. Some model can be small as hand but the other ones are even 2.5 m long.


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Omschrijving Prijs Range Series Beam Resolution Component Type Safety Type SIL IEC 61508 PL EN ISO 13849-1 Number of Beams Protective Height Minimum Scanning Distance Maximum Scanning Distance Maximum Response Time Supply Voltage Application
RS-stocknr. 196-4116
FabrikantnummerXUSL4MB30H136N
2.691,13 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 30mm Receiver, Transmitter 4 3 - 68 1360mm 0m 4 m, 12 m 19 ms 24 V dc Hand
RS-stocknr. 127-8327
FabrikantnummerXUSL4E14F046N
1.496,61 €
1 Pair
Pair(s)
Preventa XUSL4E 14mm Receiver, Transmitter 4 3 e 45 460mm 0 m, 1 m 3 m, 6 m 7.5 ms 24 V dc Finger
RS-stocknr. 196-4091
FabrikantnummerXUSL4MA30H106N
3.878,93 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 30mm Receiver, Transmitter 4 3 - 53 1060mm 0m 4 m, 12 m 16 ms 24 V dc Hand
RS-stocknr. 196-4098
FabrikantnummerXUSL4MA40H136N
3.094,50 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 46 1360mm 0m 4 m, 12 m 14.5 ms 24 V dc Hand
RS-stocknr. 196-4120
FabrikantnummerXUSL4MB40H121N
2.391,65 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 41 1210mm 0m 4 m, 12 m 13.5 ms 24 V dc Hand
RS-stocknr. 196-4117
FabrikantnummerXUSL4MB30H151N
2.853,68 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 30mm Receiver, Transmitter 4 3 - 76 1510mm 0m 4 m, 12 m 20.5 ms 24 V dc Hand
RS-stocknr. 196-4126
FabrikantnummerXUSL4MB40H211N
3.191,69 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 71 2110mm 0m 4 m, 12 m 19.5 ms 24 V dc Hand
RS-stocknr. 196-4096
FabrikantnummerXUSL4MA40H106N
2.738,91 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 36 1060mm 0m 4 m, 12 m 12.5 ms 24 V dc Hand
RS-stocknr. 127-8312
FabrikantnummerXUSL2E30H016N
593,43 €
1 Pair
Pair(s)
Preventa XUSL2E 30mm Receiver, Transmitter 2 1 c 8 160mm 0m 4 m, 12 m 4.5 ms 24 V dc Hand
RS-stocknr. 127-8310
FabrikantnummerXUSL2E30H026N
747,39 €
1 Pair
Pair(s)
Preventa XUSL2E 30mm Receiver, Transmitter 2 1 c 13 260mm 0m 4 m, 12 m 6 ms 24 V dc Hand
RS-stocknr. 196-4087
FabrikantnummerXUSL4MA30H061N
3.216,17 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 30mm Receiver, Transmitter 4 3 - 31 610mm 0m 4 m, 12 m 11 ms 24 V dc Hand
RS-stocknr. 127-8315
FabrikantnummerXUSL4E14F016N
1.133,70 €
1 Pair
Pair(s)
Preventa XUSL4E 14mm Receiver, Transmitter 4 3 e 15 160mm 0 m, 1 m 3 m, 6 m 4 ms 24 V dc Finger
RS-stocknr. 196-4089
FabrikantnummerXUSL4MA30H091N
3.690,59 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 30mm Receiver, Transmitter 4 3 - 46 910mm 0m 4 m, 12 m 14.5 ms 24 V dc Hand
RS-stocknr. 196-4097
FabrikantnummerXUSL4MA40H121N
2.957,53 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 41 1210mm 0m 4 m, 12 m 13.5 ms 24 V dc Hand
RS-stocknr. 127-8305
FabrikantnummerXUSL2E30H031N
754,59 €
1 Pair
Pair(s)
Preventa XUSL2E 30mm Receiver, Transmitter 2 1 c 16 310mm 0m 4 m, 12 m 6 ms 24 V dc Hand
RS-stocknr. 196-4125
FabrikantnummerXUSL4MB40H196N
3.041,95 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 66 1960mm 0m 4 m, 12 m 18.5 ms 24 V dc Hand
RS-stocknr. 196-4086
FabrikantnummerXUSL4MA30H046N
2.958,05 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 30mm Receiver, Transmitter 4 3 - 23 460mm 0m 4 m, 12 m 9.5 ms 24 V dc Hand
RS-stocknr. 196-4092
FabrikantnummerXUSL4MA30H121N
4.171,95 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 30mm Receiver, Transmitter 4 3 - 61 1210mm 0m 4 m, 12 m 17.6 ms 24 V dc Hand
RS-stocknr. 196-4099
FabrikantnummerXUSL4MA40H151N
3.265,63 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 51 1510mm 0m 4 m, 12 m 15.5 ms 24 V dc Hand
RS-stocknr. 196-4093
FabrikantnummerXUSL4MA30H136N
4.388,24 €
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 30mm Receiver, Transmitter 4 3 - 68 1360mm 0m 4 m, 12 m 19 ms 24 V dc Hand