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General data

Article No. 505-LS4A.TR
Function transmitter/receiver photo beam with selectable infrared
  frequency 500/700 Hz for surface or flush mounting
Dimensions Suface mount: 3.15 x 3.15 x 2 in
  (W x H x D)
  Flush mount: 3.15 x 3.15 x 1.56 in
  (W x H x D)
Maximum range 20 m
Ambient temperature -4°F to 140°F
Protection class IP 54 (protected against dust & splashing water)

Contact data

Supply voltage 12 V/ 24V DC/ AC
Relay contact 0.5 A / 120 V-1 A/DC 30V
Connections max. 0.5 mm²