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. 757-7879
Mfr. Part No.OS32C-SP1
BrandOmron
TWD149,453.00
Each
units
- 0S32C 30 mm, 40 mm, 50 mm, 70 mm Scanner 3 2 D - - - 3m 680 (On to Off) ms, 780 (Off to On) ms 24 V dc -
RS Stock No. 511-7052
Mfr. Part No.1K3-100
BrandSmartscan
TWD20,745.00
Each
units
- 1000 Plus 30mm Receiver, Sender 3 2 D 12 330mm 0.5m 5m 40 ms 24 V dc Hand
RS Stock No. 127-8301
Mfr. Part No.XUSL2E30H151N
TWD87,765.00
1 Pair of 1
Pair(s)
Preventa XUSL2E 30mm Receiver, Transmitter 2 1 C 76 1510mm 0m 4 m, 12 m 19.5 ms 24 V dc Hand
RS Stock No. 146-5858
Mfr. Part No.SLC440COM-R-1610-14
BrandSchmersal
TWD87,339.00
Each
units
SLC440COM 440 14mm Receiver - - - 160 1610mm 300mm 6000mm 28 ms 24 V dc Elevators & Escalators, Food, Heavy Industry, Machine Tools, Packaging
RS Stock No. 701-2921
Mfr. Part No.C2MT-01824BBC03BE0
BrandSick
TWD14,040.00
Each
units
MiniTwin C2MT 24mm Receiver, Sender 2 2 D - 180mm 0m 8m 13 ms 24 V dc Hand
RS Stock No. 757-7709
Mfr. Part No.F3S-TGR-CL2A-035-150
BrandOmron
TWD18,333.00
1 Pair
Pair(s)
- F3S-TGR-CL 35mm Receiver, Sender 2 - C 2 150mm 0.2m 14m 103 ms 24 V dc Finger, Hand
RS Stock No. 196-4100
Mfr. Part No.XUSL4MA40H166N
TWD116,419.00
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
RS Stock No. 196-4098
Mfr. Part No.XUSL4MA40H136N
TWD105,878.00
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. 136-3369
Mfr. Part No.C4C-SA12010A10000
BrandSick
TWD46,900.00
Each
units
DeTec4 Core C4C 14mm Sender - - - - 1200mm 0m 8m 16 ms 24 V dc Industrial
RS Stock No. 701-2924
Mfr. Part No.C2MT-03024BBC04DE0
BrandSick
TWD17,688.00
Each
units
MiniTwin C2MT 24mm Receiver, Sender 2 2 D - 300mm 0m 8m 13 ms 24 V dc Hand
RS Stock No. 757-7718
Mfr. Part No.F3S-TGR-CL2A-035-750
BrandOmron
TWD39,470.00
1 Pair
Pair(s)
- F3S-TGR-CL 35mm Receiver, Sender 2 - C 2 770mm 0.2m 14m 103 ms 24 V dc Finger, Hand
RS Stock No. 136-3378
Mfr. Part No.C4C-SA12030A10000
BrandSick
TWD45,520.00
Each
units
DeTec4 Core C4C 30mm Sender - - - - 1200mm 0m 12m 14 ms 24 V dc Industrial
RS Stock No. 196-4118
Mfr. Part No.XUSL4MB40H091N
TWD69,932.00
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. 146-5861
Mfr. Part No.SLC440COM-R-1850-14
BrandSchmersal
TWD69,641.00
Each
units
SLC440COM 440 14mm Receiver - - - 184 1850mm 300mm 6000mm 28 ms 24 V dc Elevators & Escalators, Food, Heavy Industry, Machine Tools, Packaging
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. 757-7822
Mfr. Part No.F3SJ-E0465P25
BrandOmron
TWD46,413.00
1 Pair
Pair(s)
- F3SJ 20mm Receiver, Sender 4 3 E 22 465mm 0.2m 7m 15 (On to Off) ms, 70 (Off to On) ms 24 V dc Hand
RS Stock No. 125-0674
Mfr. Part No.F3SG-2RE0240P14
BrandOmron
TWD16,081.00
1 Pair
Pair(s)
- F3SG-RE 14mm Receiver, Sender 2 - C 23 240mm 0.3 (Long) m, 0.3 (Short) m 3 (Short) m, 10 (Long) m 5 (ON to OFF) ms, 25 (OFF to ON Synchronized) ms, 125 (OFF to ON Not Synchronized) ms 24 V dc Arm, Finger, Hand
RS Stock No. 136-3370
Mfr. Part No.C4C-EA12010A10000
BrandSick
TWD52,900.00
Each
units
DeTec4 Core C4C 14mm Receiver - - - - 1200mm 0m 8m 16 ms 24 V dc Industrial
RS Stock No. 146-5859
Mfr. Part No.SLC440COM-R-1610-30
BrandSchmersal
TWD50,866.00
Each
units
SLC440COM 440 30mm Receiver - - - 80 1610mm 300mm 10000mm 20 ms 24 V dc Elevators & Escalators, Food, Heavy Industry, Machine Tools, Packaging
RS Stock No. 701-2959
Mfr. Part No.C2MT-04834BBC03DB0
BrandSick
TWD16,569.00
Each
units
MiniTwin C2MT 34mm Receiver, Sender 2 2 D - 480mm 0m 8m 13 ms 24 V dc Hand