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. 757-7667
Mfr. Part No.F3S-TGR-CL2A-014-600
BrandOmron
HK$9,786.92
1 Pair
Pair(s)
- F3S-TGR-CL 14mm Receiver, Sender 2 - C 2 600mm 0.2m 6m 103 ms 24 V dc Finger, Hand
RS Stock No. 196-4098
Mfr. Part No.XUSL4MA40H136N
HK$26,810.90
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. 182-9560
Mfr. Part No.SLLP23-1750P88
BrandBanner
HK$29,909.46
Each
units
- SLL 23mm Emitter, Receiver - 3 E - 1750mm - 12m 26 ms 24 V dc Area
RS Stock No. 136-3370
Mfr. Part No.C4C-EA12010A10000
BrandSick
HK$16,011.44
Each
units
DeTec4 Core C4C 14mm Receiver - - - - 1200mm 0m 8m 16 ms 24 V dc Industrial
RS Stock No. 125-0685
Mfr. Part No.F3SG-2RE0590P30
BrandOmron
HK$5,770.14
1 Pair
Pair(s)
- F3SG-RE 30mm Receiver, Sender 2 - C 28 590mm 0.3 (Long) m, 0.3 (Short) m 7 (Short) m, 20 (Long) m 7 (ON to OFF) ms, 35 (OFF to ON Synchronized) ms, 135 (OFF to ON Not Synchronized) ms 24 V dc Arm, Finger, Hand
RS Stock No. 127-8312
Mfr. Part No.XUSL2E30H016N
HK$5,499.08
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 Stock No. 127-8308
Mfr. Part No.XUSL2E30H181N
HK$23,115.04
1 Pair of 1
Pair(s)
Preventa XUSL2E 30mm Receiver, Transmitter 2 1 C 91 1810mm 0m 4 m, 12 m 22.5 ms 24 V dc Hand
RS Stock No. 182-9562
Mfr. Part No.SLLP40-280P88
BrandBanner
HK$11,104.40
Each
units
- SLL 40mm Emitter, Receiver - 3 E - 280mm - 12m 8.2 ms 24 V dc Area
RS Stock No. 196-4120
Mfr. Part No.XUSL4MB40H121N
HK$20,721.39
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
RS Stock No. 182-9554
Mfr. Part No.SLLP23-1400P88
BrandBanner
HK$24,292.86
Each
units
- SLL 23mm Emitter, Receiver - 3 E - 1400mm - 12m 21.8 ms 24 V dc Area
RS Stock No. 136-3371
Mfr. Part No.C4C-SA03030A10000
BrandSick
HK$4,339.21
Each
units
DeTec4 Core C4C 30mm Sender - - - - 300mm 0m 12m 14 ms 24 V dc Industrial
RS Stock No. 125-0688
Mfr. Part No.F3SG-2RE1230P30
BrandOmron
HK$9,879.35
1 Pair
Pair(s)
- F3SG-RE 30mm Receiver, Sender 2 - C 60 1230mm 0.3 (Long) m, 0.3 (Short) m 7 (Short) m, 20 (Long) m 7 (ON to OFF) ms, 35 (OFF to ON Synchronized) ms, 135 (OFF to ON Not Synchronized) ms 24 V dc Arm, Finger, Hand
RS Stock No. 125-0675
Mfr. Part No.F3SG-2RE0320P14
BrandOmron
HK$4,809.22
1 Pair
Pair(s)
- F3SG-RE 14mm Receiver, Sender 2 - C 31 320mm 0.3 (Long) m, 0.3 (Short) m 3 (Short) m, 10 (Long) m 7 (ON to OFF) ms, 35 (OFF to ON Synchronized) ms, 135 (OFF to ON Not Synchronized) ms 24 V dc Arm, Finger, Hand
RS Stock No. 182-9536
Mfr. Part No.SLLP23-280P88
BrandBanner
HK$7,809.29
Each
units
- SLL 23mm Emitter, Receiver - 3 E - 280mm - 12m 8.2 ms 24 V dc Area
RS Stock No. 127-8313
Mfr. Part No.XUSL2E30H076N
HK$11,827.63
1 Pair of 1
Pair(s)
Preventa XUSL2E 30mm Receiver, Transmitter 2 1 C 38 760mm 0m 4 m, 12 m 11 ms 24 V dc Hand
RS Stock No. 182-9545
Mfr. Part No.SLLP23-770P88
BrandBanner
HK$10,969.82
Each
units
- SLL 23mm Emitter, Receiver - 3 E - 770mm - 12m 14.2 ms 24 V dc Area
RS Stock No. 196-4100
Mfr. Part No.XUSL4MA40H166N
HK$29,480.19
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. 125-0679
Mfr. Part No.F3SG-2RE0720P14
BrandOmron
HK$8,023.02
1 Pair
Pair(s)
- F3SG-RE 14mm Receiver, Sender 2 - C 71 720mm 0.3 (Long) m, 0.3 (Short) m 3 (Short) m, 10 (Long) m 9 (ON to OFF) ms, 45 (OFF to ON Synchronized) ms, 145 (OFF to ON Not Synchronized) ms 24 V dc Arm, Finger, Hand
RS Stock No. 196-4104
Mfr. Part No.XUSL4MA40H226N
HK$35,047.70
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. 191-9837
Mfr. Part No.632024
BrandPilz
HK$11,472.41
Each
units
- PSEN opII3H 30mm Receiver, Transmitter 3 - D - 750mm 0.2m 18m 15.2 ms 24 V dc Industrial