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
RS Stock No. 196-4091
Mfr. Part No.XUSL4MA30H106N
TWD132,718.00
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 Stock No. 196-4124
Mfr. Part No.XUSL4MB40H181N
TWD100,860.00
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
RS Stock No. 196-4117
Mfr. Part No.XUSL4MB30H151N
TWD97,639.00
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. 196-4102
Mfr. Part No.XUSL4MA40H196N
TWD128,133.00
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 Stock No. 196-4096
Mfr. Part No.XUSL4MA40H106N
TWD93,712.00
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 Stock No. 196-4115
Mfr. Part No.XUSL4MB30H121N
TWD87,539.00
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 Stock No. 196-4119
Mfr. Part No.XUSL4MB40H106N
TWD76,121.00
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 Stock No. 196-4092
Mfr. Part No.XUSL4MA30H121N
TWD142,744.00
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 Stock No. 196-4125
Mfr. Part No.XUSL4MB40H196N
TWD104,081.00
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 Stock No. 127-8315
Mfr. Part No.XUSL4E14F016N
TWD46,449.00
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 Stock No. 196-4099
Mfr. Part No.XUSL4MA40H151N
TWD111,734.00
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 Stock No. 196-4121
Mfr. Part No.XUSL4MB40H136N
TWD85,636.00
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. 196-4101
Mfr. Part No.XUSL4MA40H181N
TWD124,168.00
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
RS Stock No. 196-4114
Mfr. Part No.XUSL4MB30H106N
TWD81,391.00
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 Stock No. 196-4126
Mfr. Part No.XUSL4MB40H211N
TWD109,204.00
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 Stock No. 196-4110
Mfr. Part No.XUSL4MB30H061N
TWD67,484.00
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 Stock No. 196-4103
Mfr. Part No.XUSL4MA40H211N
TWD134,441.00
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 Stock No. 196-4094
Mfr. Part No.XUSL4MA30H151N
TWD159,214.00
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. 196-4107
Mfr. Part No.XUSL4MA4BB091N
TWD71,780.00
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 300mm Receiver, Transmitter 4 3 - 41 910mm 0m 4 m, 12 m 5.5 ms 24 V dc Body
RS Stock No. 196-4111
Mfr. Part No.XUSL4MB30H076N
TWD71,583.00
1 Pair
Pair(s)
Preventa Safety Detection XUSL4M 30mm Receiver, Transmitter 4 3 - 38 760mm 0m 4 m, 12 m 12.5 ms 24 V dc Hand