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
Angle of divergenceapprox. 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 stability control
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
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.

CAD+CAE: RL91-6-IR/25/38a/115

CADFile TypeFile Size
3-D model in IGS format / 3-D-Modell im IGS-FormatIGS262 KB
3-D model in STP format / 3-D-Modell im STP-FormatSTP169 KB
CAD Portal / CAD PortalLINK---

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

CertificatesCertificate No.File TypeFile Size
US CA UL General PurposeE87056LINK---

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

Mounting bracket fa

Function: 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.