Pepperl+Fuchs RLG28-55/40a/73c/136
Retroreflective area sensor

Pepperl+Fuchs RLG28-55/40a/73c/136
  • Retro-reflective area sensor with 6 light beams in standard photoelectric-sensor enclosure
  • Connection compatibly replaces single beam photoelectric sensor
  • Reliable detection of the front edge of the object irrespective of its shape and position
  • Constant object detection from 12 mm within the entire detection area
  • Reliable detection of all surfaces irrespective of the object texture
  • Switches when contrast difference 10%
  • Bright, highly visible transmitter beams, guarantee convenient alignment of the sensor
Item Number: RLG28-55/40a/73c/136
Total price: 314.35
The price is not final. Please check with the manager!
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  • Overview
  • Comments
Switching typelight/dark on, switchable
UL approvalcULus Listed, Class 2 Power Source
Housing depth54.3 mm
Switching currentmax. 100 mA
Polarization filteryes
Diameter of the light spotapprox. 220 mm at detection range 4 m
Light sourceLED
Operating voltage12 ... 30 V DC
Mass100 g
Control elementsrotary switch for light/dark , Teach-In key
Threshold detection range5.6 m
Reference targetReflector A80 H85-2 reflector Foil reflector OFR-100/100
Number of beams6
Reflector distanceReflector A80: 0.4 ... 4 m , H85-2 reflector: 0.2 ... 4 m , Foil reflector OFR-100/100: 0.4 ... 3 m
Degree of protectionIP67
Sensing rangetypical 60 mm , Object has to cover the refelector completely in one dimension
Diagnostic Coverage (DC)0 %
Switching voltagemax. 30 V DC
MTTFd310 a
Light typemodulated visible red light , 625 nm
No-load supply currentmax. 50 mA
Response time1 ms
Function indicator2 LEDs yellow, light up when light beam is free, flash when falling short of the stability control, off when light beam is interrupted
Teach-In : LED yellow/green; equiphase flashing; 2,5 Hz
Changeover signal tracking: LED yellow, 1 Hz flashing / 2x flashing
Housing width25.8 mm
Signal output2 push-pull (4 in 1) outputs, complementary, short-circuit proof, reverse polarity protected
Ambient temperature-30 ... 60 В°C (-22 ... 140 В°F)
-10 ... 40 В°C (14 ... 104 В°F) for inactive signal tracking
Voltage drop 2.5 V DC
Housing height88 mm
Angle of divergence+/- 2.5 В°
Switching frequency230 Hz
Storage temperature-40 ... 70 В°C (-40 ... 158 В°F)
Effective detection range0 ... 4 m
CCC approvalCCC approval / marking not required for products rated 36 V
Product standardEN 60947-5-2
Ambient light limit5000 Lux
Resolution12 mm
Ripplemax. 10 %
Connection4-pin, M12 x 1 connector
Mission Time (TM)20 a
Operation indicatorLED green, statically lit Power on
Undervoltage indicator: Green LED, pulsing (approx. 0.8 Hz)
short-circuit : LED green flashing (approx. 4 Hz)


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