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. 196-4104
Mfr. Part No.XUSL4MA40H226N
TWD138,406.00
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
RS Stock No. 511-7119
Mfr. Part No.1K3-117
BrandSmartscan
TWD54,820.00
Each
units
- 1000 Plus 40mm Receiver, Sender 2 - - 60 1540mm 4m 10m 40 ms 24 V dc Hand
RS Stock No. 146-5862
Mfr. Part No.SLC440COM-R-1930-30
BrandSchmersal
TWD70,720.00
Each
units
SLC440COM 440 30mm Receiver - - - 96 1930mm 300mm 10000mm 20 ms 24 V dc Elevators & Escalators, Food, Heavy Industry, Machine Tools, Packaging
New
RS Stock No. 191-9835
Mfr. Part No.632022
BrandPilz
TWD35,030.00
Each
units
- PSEN opII3H 30mm Receiver, Transmitter 3 - D - 450mm 0.2m 18m 11.7 ms 24 V dc Industrial
RS Stock No. 511-9884
Mfr. Part No.1K3-108
BrandSmartscan
TWD34,657.00
Each
units
- 1000 Plus 30mm Receiver, Sender 3 2 D 36 930mm 0.5m 5m 40 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. 146-5845
Mfr. Part No.SLC440COM-R-0490-30
BrandSchmersal
TWD33,477.00
Each
units
SLC440COM 440 30mm Receiver - - - 24 490mm 300mm 10000mm 10 ms 24 V dc Elevators & Escalators, Food, Heavy Industry, Machine Tools, Packaging
RS Stock No. 125-0688
Mfr. Part No.F3SG-2RE1230P30
BrandOmron
TWD38,117.00
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. 136-3375
Mfr. Part No.C4C-EA06030A10000
BrandSick
TWD27,600.00
Each
units
DeTec4 Core C4C 30mm Receiver - - - - 600mm 0m 12m 14 ms 24 V dc Industrial
New
RS Stock No. 191-9841
Mfr. Part No.632041
BrandPilz
TWD35,302.00
Each
units
- PSEN opII3F 14mm Receiver, Transmitter 3 - D - 300mm 0.2m 8m 15.2 ms 24 V dc Industrial
RS Stock No. 146-5823
Mfr. Part No.SLC440COM-E-0490-14
BrandSchmersal
TWD37,347.00
Each
units
SLC440COM 440 14mm Sender - - - 48 490mm 300mm 7000mm 10 ms 24 V dc Elevators & Escalators, Food, Heavy Industry, Machine Tools, Packaging
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. 127-8303
Mfr. Part No.XUSL2E30H166N
TWD90,084.00
1 Pair of 1
Pair(s)
Preventa XUSL2E 30mm Receiver, Transmitter 2 1 C 83 1660mm 0m 4 m, 12 m 21 ms 24 V dc Hand
RS Stock No. 920-9710
Mfr. Part No.2TLA022303R0700
BrandABB
TWD86,408.00
1 Pair
Pair(s)
Orion1 - 30mm Receiver, Sender 4 - E 64 1200mm 0.2m 20m 19 (No Code) ms, 29 (With Code) ms 24 V dc Hand
RS Stock No. 701-2952
Mfr. Part No.C2MT-06034BBC03FE0
BrandSick
TWD19,607.00
Each
units
MiniTwin C2MT 34mm Receiver, Sender 2 2 D - 600mm 0m 8m 13 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. 146-5843
Mfr. Part No.SLC440COM-R-0330-30
BrandSchmersal
TWD29,091.00
Each
units
SLC440COM 440 30mm Receiver - - - 16 330mm 300mm 10000mm 10 ms 24 V dc Elevators & Escalators, Food, Heavy Industry, Machine Tools, Packaging
RS Stock No. 125-0679
Mfr. Part No.F3SG-2RE0720P14
BrandOmron
TWD31,534.00
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
New
RS Stock No. 191-9846
Mfr. Part No.632066
BrandPilz
TWD76,587.00
Each
units
- opII4H 30mm Receiver, Transmitter 4 - E - 1050mm 0.2m 18m 22.3 ms 24 V dc Industrial
RS Stock No. 196-4093
Mfr. Part No.XUSL4MA30H136N
TWD150,144.00
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