Serviceline Industrial Sensors
Serviceline Explosion Protection

Fire protection thru-beam sensor LA28/LK28-FC-Z/31/116

  • Compact fire protection photoelectric sensor for safety devices on fire barriers
  • Approval in accordance with VdS Test Report FSA and externally monitored manufacture (Ü Symbol)
  • Not sensitive to ambient light, even with switched energy saving lamps

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of LA28/LK28-FC-Z/31/116

Product Description
Compact fire protection photoelectric sensor
General specifications
Effective detection range0 ... 10 m
Threshold detection range10 m
Light sourceLED, 660 nm and IRED, 880 nm
Light typemodulated visible red light and modulated infrared light
Diameter of the light spotapprox. 0.2 m at 10 m
Indicators/operating means
Function indicatorLED yellow:
1. LED lit constantly: signal > 2 x switching point (function reserve)
2. LED flashes: signal between 1 x switching point and 2 x switching point
3. LED off: signal < switching point
Control elementsLight-on/dark-on changeover switch ; Time adjuster
Electrical specifications
Operating voltage12 ... 240 V AC/DC
Switching typelight/dark on, switchable . (selectable, light/dark switching is only activated if the receiver has 'dark on' selected.)
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 60947-5-2:2007 EN 60947-5-2/A1:2012
Approvals and certificates
EAC conformityTR CU 020/2011
TR CU 004/2011
ApprovalsCertificate of Compliance VdS / DIBt Verband der Sachversicherer e. V. report: FSA 07007
Ambient conditions
Ambient temperature-40 ... 60 °C (-40 ... 140 °F)
Mechanical specifications
Degree of protectionIP67
Connectionterminal compartment with 8 spring-loaded terminals for wire cross section 0.5 ... 1.5 mm2 , Insulation stripping 7.5 ... 8.5 mm , M16 x 1.5 cable gland
HousingPlastic ABS
Optical facePlastic pane

Approvals+Certificates: LA28/LK28-FC-Z/31/116

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0068APDF106 KB
Canada USA UL Ordinary Location20170307-E87056PDF403 KB
China CQC CCC2011010305467440PDF2156 KB
EU VdS union of non-life insurer02 09 002PDF1727 KB
EU VdS union of non-life insurerReg.-Nr. 25017PDF1583 KB

Associated Products: LA28/LK28-FC-Z/31/116

Mounting aid for round steel ø 12 mm or sheet 1.5 mm ... 3 mmfa
Mounting bracket fa
Mounting bracket fa