Serviceline Industrial Sensors
Serviceline Explosion Protection

Background suppression sensor RLK61-8-H-2000-IR-Z/31/135

  • Cost-optimized series for standard tasks in a special design
  • Compact design
  • Wide range of mounting options thanks to cubic housing design with M30 thread
  • 360° high visibility LEDs
  • Programmable ON-delay, OFF-delay, and One-shot timers
  • Version for universal voltages
  • Relay output

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  RLK61-8-H-2000-IR-Z/31/135

Product Description
Background suppression sensor
General specifications
Detection range20 ... 2000 mm
Light sourceIRED
Light typemodulated infrared light , 850 nm
Black/White difference (6 %/90 %)< 40 %
Diameter of the light spotapprox. 24 mm at a distance of 2000 mm
Angle of divergence0.7 °
Indicators/operating means
Function indicator2 LEDs yellow
ON: object inside the scanning range
OFF: object outside the scanning range
Control elementsLight-on/dark-on changeover switch
Control elementsSensing range adjuster
Electrical specifications
Operating voltage24 ... 240 V AC
12 ... 240 V DC
Switching typelight/dark on, switchable
Signal output1 SPDT relay
Compliance with standards and directives
Directive conformity
EMC Directive 2004/108/ECEN 60947-5-2:2007+A1:2012
Standard conformity
Product standardEN 60947-5-2:2007
IEC 60947-5-2:2007
Approvals and certificates
EAC conformityTR CU 020/2011 TR CU 004/2011
Mechanical specifications
Degree of protectionIP67
Connection5-pin V95 connector (7/8"-16 UN 2A)
HousingPC (Polycarbonate)
Optical facePMMA

Documents: RLK61-8-H-2000-IR-Z/31/135

Instruction leafletsLanguageFile TypeFile Size
Instruction leaflet / Beipackzettel ALLPDF554 KB

CAD+CAE: RLK61-8-H-2000-IR-Z/31/135

CADFile TypeFile Size
3-D model in IGS format / 3-D-Modell im IGS-FormatIGS6335 KB
3-D model in STP format / 3-D-Modell im STP-FormatSTP4314 KB
CAD Portal / CAD PortalLINK---

Approvals+Certificates: RLK61-8-H-2000-IR-Z/31/135

CertificatesCertificate No.File TypeFile Size
China CQC CCC SDOC2020970305000260PDF246 KB
US CA UL General PurposeE87056LINK---

Associated Products: RLK61-8-H-2000-IR-Z/31/135

Mounting bracket with vertical slotsfa
Mounting bracket with circular slotsfa
Ball and Swivel Mounting Bracketfa
Ball and Swivel Vertical Mounting Platefa
Female cordset, 7/8", 5-pin, STOOW cablefa
Female cordset, 7/8", 5-pin, STOOW cablefa

Function: RLK61-8-H-2000-IR-Z/31/135

The Series 61 sensor family is a comprehensive product line, offering five sensing modes. Each sensor is equipped with four LEDs that are highly visible from all directions, indicating Power-On, target presence and marginal excess gain. The widely recognized, polycarbonate housing provides a IP67 protection degree rating. Color-coded labels are clearly printed on the housing to easily identify the sensing mode. DC models offer a 4-in-1 output while AC/DC models have a SPDT relay output rated to 3 A. All versions come standard with an integral multifunction timer, sensitivity adjustment and Light-ON/Dark-ON switch. Series 61 sensors are cross-talk protected and have a high degree of resistance to ambient lighting. Each sensor can be mounted via front and rear slots, rear dovetail guide or M30 x 1.5 mounting base. Additionally, cabled sensor models provide ½" - 14 NPT internal threads for use with flexible conduit.