Serviceline Industrial Sensors
Serviceline Explosion Protection

Diffuse mode sensor RLK39-8-2000-Z/31/40a/116

  • Infrared light
  • Light-on/dark-on, switchable
  • Timer function
  • Degree of protection IP67

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  RLK39-8-2000-Z/31/40a/116

Product Description
Diffuse mode sensor
General specifications
Detection range0 ... 2000 mm
Adjustment range200 ... 2000 mm
Reference targetstandard white 200 mm x 200 mm
Light sourceIRED
Light typemodulated infrared light
Ambient light limitIEC / EN 60947-5-2 , 10000 Lux
Functional safety related parameters
MTTFd803 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Indicators/operating means
Function indicatorLED yellow: switching state
LED red: pre-fault indication
Control elementsSensing range adjuster, light-on/dark-on changeover switch
Control elementsswitch for timer function
Electrical specifications
Operating voltage12 ... 240 V DC
24 ... 240 V AC (50 ... 60 Hz)
Ripple10 %
No-load supply current≤ 50 mA
Protection classII, rated voltage ≤ 250 V AC with pollution degree 1-2 according to IEC 60664-1 Caution!
The protection class 2 is only valid when the terminal compartment is closed. output circuit has basic insulation to control circuit according to IEC/EN 61140
Power consumption≤ 3 VA
Time delay before availability≤ 300 ms
Switching typelight/dark on
Signal output1 relay output
Switching voltagemax. 240 V AC ; 150 V DC
Switching currentmax. 3 A
Switching powerDC: max. 90 W AC: max. 750 VA
Switching frequency≤ 25 Hz
Response time≤ 20 ms
Timer functionOn-/off-delay or pulse extension on choice
Product standardEN 60947-5-2
Approvals and certificates
EAC conformityTR CU 020/2011
TR CU 004/2011
CCC approvalCertified by China Compulsory Certification (CCC)
Ambient conditions
Ambient temperature-25 ... 55 °C (-13 ... 131 °F)
Storage temperature-40 ... 70 °C (-40 ... 158 °F)
Mechanical specifications
Housing width25 mm
Housing height64 mm
Housing depth75 mm
Degree of protectionIP67
Connectionterminal compartment PG9, ≤ 2.5 mm2
Optical facePMMA
Massapprox. 110 g
General information
Scope of deliveryMounting aid


ECLASS 11.027270903
ECLASS 10.0.127270903
ECLASS 9.027270903
ECLASS 8.027270903
ECLASS 5.127270903
ETIM 8.0EC001821
ETIM 7.0EC001821
ETIM 6.0EC001821
ETIM 5.0EC001821
UNSPSC 12.139121528

Documents: RLK39-8-2000-Z/31/40a/116

Instruction leafletsLanguageFile TypeFile Size
Instruction leaflet / Beipackzettel ALLPDF485 KB

CAD+CAE: RLK39-8-2000-Z/31/40a/116

CADFile TypeFile Size
3-D model / 3-D-ModellSTP182 KB
CAD Portal / CAD PortalLINK---

Associated Products: RLK39-8-2000-Z/31/40a/116

Mounting bracket for RL39 series Sensorsfa