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. A set of light curtains contains a transmitter head and a 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.

Light curtains are great safety devices that are used to keep people safe around hazardous machinery which could cause them harm. They can help ensure user safety during routine operations like maintenance and repair.

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 14 mm to even 70 mm.

Typical Applications

Light curtains are a way of safeguarding employees from dangerous machines. The design of the safety light curtain offers more flexibility and simplifies machine set up, maintenance and repair than other solid traditional guarding systems such as mechanical barriers and sliding gates. They can be found in various applications including:

  • Packaging machines
  • Process machinery
  • Automated warehouses
  • Textile machinery
  • Electronic component assembly lines
  • Mechanical and hydraulic power presses

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Omschrijving Prijs Range Series Beam Resolution Component Type Safety Type SIL IEC 61508 PL EN ISO 13849-1 Number of Beams Protective Height Maximum Protective Width Minimum Scanning Distance Maximum Scanning Distance Maximum Response Time Supply Voltage
RS-stocknr. 196-4106
FabrikantnummerXUSL4MA3BB081N
€ 1.803,20
1 Pair
Pair(s)
Preventa XUSL4M 400mm Receiver, Transmitter 4 3 - 3 810mm - 0m 4 m, 12 m 5.5 ms 24 V dc
RS-stocknr. 196-4107
FabrikantnummerXUSL4MA4BB091N
€ 2.097,91
1 Pair
Pair(s)
Preventa XUSL4M 300mm Receiver, Transmitter 4 3 - 41 910mm - 0m 4 m, 12 m 5.5 ms 24 V dc
RS-stocknr. 127-8327
FabrikantnummerXUSL4E14F046N
€ 1.496,61
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
RS-stocknr. 196-4098
FabrikantnummerXUSL4MA40H136N
€ 3.094,50
1 Pair
Pair(s)
Preventa XUSL4M 40mm Receiver, Transmitter 4 3 - 46 1360mm - 0m 4 m, 12 m 14.5 ms 24 V dc
RS-stocknr. 196-4092
FabrikantnummerXUSL4MA30H121N
€ 4.171,95
1 Pair
Pair(s)
Preventa XUSL4M 30mm Receiver, Transmitter 4 3 - 61 1210mm - 0m 4 m, 12 m 17.6 ms 24 V dc
RS-stocknr. 196-4097
FabrikantnummerXUSL4MA40H121N
€ 2.957,53
1 Pair
Pair(s)
Preventa XUSL4M 40mm Receiver, Transmitter 4 3 - 41 1210mm - 0m 4 m, 12 m 13.5 ms 24 V dc
RS-stocknr. 196-4100
FabrikantnummerXUSL4MA40H166N
€ 3.402,57
1 Pair
Pair(s)
Preventa XUSL4M 40mm Receiver, Transmitter 4 3 - 56 1660mm - 0m 4 m, 12 m 16.5 ms 24 V dc
RS-stocknr. 196-4094
FabrikantnummerXUSL4MA30H151N
€ 4.653,35
1 Pair
Pair(s)
Preventa XUSL4M 30mm Receiver, Transmitter 4 3 - 76 1510mm - 0m 4 m, 12 m 20.5 ms 24 V dc
RS-stocknr. 196-4108
FabrikantnummerXUSL4MB30H031N
€ 1.715,56
1 Pair
Pair(s)
Preventa XUSL4M 30mm Receiver, Transmitter 4 3 - 16 310mm - 0m 4 m, 12 m 8 ms 24 V dc
RS-stocknr. 196-4117
FabrikantnummerXUSL4MB30H151N
€ 2.853,68
1 Pair
Pair(s)
Preventa XUSL4M 30mm Receiver, Transmitter 4 3 - 76 1510mm - 0m 4 m, 12 m 20.5 ms 24 V dc
RS-stocknr. 196-4121
FabrikantnummerXUSL4MB40H136N
€ 2.502,89
1 Pair
Pair(s)
Preventa XUSL4M 40mm Receiver, Transmitter 4 3 - 46 1360mm - 0m 4 m, 12 m 14.5 ms 24 V dc
RS-stocknr. 127-8305
FabrikantnummerXUSL2E30H031N
€ 754,59
1 Pair
Pair(s)
Preventa XUSL2E 30mm Receiver, Transmitter 2 1 C 16 310mm - 0m 4 m, 12 m 6 ms 24 V dc
RS-stocknr. 196-4128
FabrikantnummerXUSL4MB2BB051N
€ 1.358,74
1 Pair
Pair(s)
Preventa XUSL4M 500mm Receiver, Transmitter 4 3 - 2 510mm - 0m 4 m, 12 m 5.5 ms 24 V dc
RS-stocknr. 196-4093
FabrikantnummerXUSL4MA30H136N
€ 4.388,24
1 Pair
Pair(s)
Preventa XUSL4M 30mm Receiver, Transmitter 4 3 - 68 1360mm - 0m 4 m, 12 m 19 ms 24 V dc
RS-stocknr. 196-4130
FabrikantnummerXUSL4MB3BB081N
€ 1.506,44
1 Pair
Pair(s)
Preventa XUSL4M 400mm Receiver, Transmitter 4 3 - 3 810mm - 0m 4 m, 12 m 5.5 ms 24 V dc
RS-stocknr. 196-4089
FabrikantnummerXUSL4MA30H091N
€ 3.690,59
1 Pair
Pair(s)
Preventa XUSL4M 30mm Receiver, Transmitter 4 3 - 46 910mm - 0m 4 m, 12 m 14.5 ms 24 V dc
RS-stocknr. 196-4114
FabrikantnummerXUSL4MB30H106N
€ 2.378,79
1 Pair
Pair(s)
Preventa XUSL4M 30mm Receiver, Transmitter 4 3 - 53 1060mm - 0m 4 m, 12 m 16 ms 24 V dc
RS-stocknr. 196-4109
FabrikantnummerXUSL4MB30H046N
€ 1.829,31
1 Pair
Pair(s)
Preventa XUSL4M 30mm Receiver, Transmitter 4 3 - 23 460mm - 0m 4 m, 12 m 9.5 ms 24 V dc
RS-stocknr. 196-4103
FabrikantnummerXUSL4MA40H211N
€ 3.929,29
1 Pair
Pair(s)
Preventa XUSL4M 40mm Receiver, Transmitter 4 3 - 71 2110mm - 0m 4 m, 12 m 19.5 ms 24 V dc
RS-stocknr. 196-4091
FabrikantnummerXUSL4MA30H106N
€ 3.878,93
1 Pair
Pair(s)
Preventa XUSL4M 30mm Receiver, Transmitter 4 3 - 53 1060mm - 0m 4 m, 12 m 16 ms 24 V dc