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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Description Price 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
New
RS Stock No. 196-4115
Mfr. Part No.XUSL4MB30H121N
SGD3,759.08
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
New
RS Stock No. 196-4116
Mfr. Part No.XUSL4MB30H136N
SGD3,953.95
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 Stock No. 127-8305
Mfr. Part No.XUSL2E30H031N
SGD1,264.26
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
New
RS Stock No. 196-4125
Mfr. Part No.XUSL4MB40H196N
SGD4,469.43
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
New
RS Stock No. 196-4094
Mfr. Part No.XUSL4MA30H151N
SGD6,836.97
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 Stock No. 127-8310
Mfr. Part No.XUSL2E30H026N
SGD1,262.94
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
New
RS Stock No. 196-4089
Mfr. Part No.XUSL4MA30H091N
SGD5,422.42
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
New
RS Stock No. 196-4097
Mfr. Part No.XUSL4MA40H121N
SGD4,345.39
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
New
RS Stock No. 196-4121
Mfr. Part No.XUSL4MB40H136N
SGD3,677.39
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 Stock No. 127-8327
Mfr. Part No.XUSL4E14F046N
SGD2,256.91
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
New
RS Stock No. 196-4127
Mfr. Part No.XUSL4MB40H226N
SGD4,827.75
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 76 2260mm 0m 4 m, 12 m 20.5 ms 24 V dc Hand
New
RS Stock No. 196-4100
Mfr. Part No.XUSL4MA40H166N
SGD4,999.26
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 56 1660mm 0m 4 m, 12 m 16.5 ms 24 V dc Hand
New
RS Stock No. 196-4118
Mfr. Part No.XUSL4MB40H091N
SGD3,003.02
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 31 910mm 0m 4 m, 12 m 11 ms 24 V dc Hand
RS Stock No. 127-8312
Mfr. Part No.XUSL2E30H016N
SGD993.24
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
New
RS Stock No. 196-4124
Mfr. Part No.XUSL4MB40H181N
SGD4,331.13
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 61 1810mm 0m 4 m, 12 m 17.5 ms 24 V dc Hand
New
RS Stock No. 196-4101
Mfr. Part No.XUSL4MA40H181N
SGD5,332.03
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 40mm Receiver, Transmitter 4 3 - 61 1810mm 0m 4 m, 12 m 17.5 ms 24 V dc Hand
New
RS Stock No. 196-4106
Mfr. Part No.XUSL4MA3BB081N
SGD2,649.38
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 400mm Receiver, Transmitter 4 3 - 3 810mm 0m 4 m, 12 m 5.5 ms 24 V dc Body
New
RS Stock No. 196-4131
Mfr. Part No.XUSL4MB4BB091N
SGD2,451.83
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 300mm Receiver, Transmitter 4 3 - 4 910mm 0m 4 m, 12 m 5.5 ms 24 V dc Body
New
RS Stock No. 196-4098
Mfr. Part No.XUSL4MA40H136N
SGD4,546.60
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
New
RS Stock No. 196-4109
Mfr. Part No.XUSL4MB30H046N
SGD2,687.73
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