Serviceline Industrial Sensors
Serviceline Explosion Protection

Retroreflective sensor RL91-6-IR/25/38a/115

  • Retroreflective sensor for single-beam closing edge protection
  • Narrow housing suitable for small gaps
  • Sturdy plastic housing
  • Various possibilities for mounting
  • Version with infrared light
  • Version for supply voltage of up to 30 V DC
  • Light on version

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  RL91-6-IR/25/38a/115

Product Description
Mid-range photoelectric sensors for detecting people, objects, and vehicles
General specifications
Effective detection range0 ... 6 m
Reflector distance0 ... 6 m
Threshold detection range9 m
Reference targetH85-2 reflector
Light sourceLED
Light typemodulated infrared light
Diameter of the light spotapprox. 230 mm at a distance of 6000 mm
Opening angleapprox. 2.5 °
Ambient light limit90000 Lux
Functional safety related parameters
MTTFd1083.4 a
Indicators/operating means
Function indicatorLED red, flashes when falling short of the operating reserve
Electrical specifications
Operating voltage12 ... 30 V DC / 18 ... 28 V AC
No-load supply current< 100 mA
Switching typelight-on
Signal outputWeak current relay, 1 alternator
Switching voltage≤ 55 V AC / 24 V DC
Switching current1 A /24 V DC, 0.5 A /110 V AC
Switching powermax. 24 W / 55 VA
Switching frequency25 Hz
Response time20 ms
Product standardEN 60947-5-2
Approvals and certificates
UL approvalcULus
For overcurrent protection, install a fuse with a rated current of max. 5 A and min. 55 V AC
CCC approvalCCC approval / marking not required for products rated ≤36 V
Ambient conditions
Ambient temperature-20 ... 55 °C (-4 ... 131 °F)
Storage temperature-20 ... 75 °C (-4 ... 167 °F)
Mechanical specifications
Degree of protectionIP65
Connection5 m fixed cable
Optical faceLuran®
Mass100 g
Height85 mm
Width19.5 mm
Depth50 mm
NoteSafety fuse ≤ 315 mA (slow-blow) according to IEC 60127-2 Sheet 1
Recommendation: after a short circuit, check that the device is functioning correctly.


ECLASS 13.027270902
ECLASS 12.027270902
ECLASS 11.027270902
ECLASS 10.0.127270902
ECLASS 9.027270902
ECLASS 8.027270902
ECLASS 5.127270902
ETIM 9.0EC002717
ETIM 8.0EC002717
ETIM 7.0EC002717
ETIM 6.0EC002717
ETIM 5.0EC002717
UNSPSC 12.139121528

Details: RL91-6-IR/25/38a/115


Concentration on the essentials is the hallmark of the 91 series. As ac/dc supply devices, these economical, reliable and easy-to-use photoelectric sensors can be used almost universally. Their narrow design means that they can be used in any environment.

The single-beam photoelectric sensors of the 91 series are suitable for closing-edge monitoring for elevators, barriers and doors, as well as for object detection and object tracking in material handling systems.

Informative Literature: RL91-6-IR/25/38a/115

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Product Documentation: RL91-6-IR/25/38a/115

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Brief InstructionsLanguageFile TypeFile Size
Instruction leaflet / BeipackzettelALLPDF289 KB

Design / Simulation: RL91-6-IR/25/38a/115

Language Selection:
CADLanguageFile TypeFile Size
CAD Portal / CAD PortalALLLINK---

Approvals: RL91-6-IR/25/38a/115

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Canada USA UL Ordinary LocationUL-CA-L87056-31-90408991-0 / UL-US-L87056-11-90408991-0ALLPDF625 KB
Canada USA UL Ordinary LocationE87056ALLLINK---
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-6717ALLPDF226 KB
UK Declaration of Conformity (P+F) / UK-Konformitäterklärung (P+F)DOC-6756ALLPDF223 KB

Associated Products: RL91-6-IR/25/38a/115

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