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Phone: 330-486-0001
Fax: 330-405-4710
Serviceline Explosion Protection
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Fax: 330-963-5827

Elevator light grid AL2109-P-1820/40b/49/143

  • Low-profile, high resolution light grid for monitoring locking edges on elevators and accesses
  • Thru-beam light grid with integrated controller
  • In accord with EN81-70 and EN12015/16
  • Dense monitoring field with up to 135 beams ensures that small objects are detected
  • Object detection up to distance of zero
  • Automatic beam crossing and beam suppression
  • Insensitive to reflection and ambient light

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  AL2109-P-1820/40b/49/143

Product Description
High-resolution light grid for detecting people and objects, set comprising emitter and receiver, field height: 1800 mm, light/dark on, 1 NPN output and 1 PNP output, M8 plug
General specifications
Effective detection range0 ... 3500 mm
Threshold detection range3500 mm
Light sourceIRED
Light typemodulated infrared light , 950 nm
Field height1800 mm
Beam crossoverautomatic, 3x/5x/7x (depending on distance between transmitter/receiver)
Beam spacing90 mm
Number of beams61 ... 135 (dynamic)
Functional safety related parameters
MTTFd180 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Indicators/operating means
Function indicatorLED red (in receiver): Illuminates after connecting operating power, out when object is detected, flashes in case of permanent interruption of 2 neighbouring beams
Electrical specifications
Operating voltage11 ... 30 V DC
Switching typelight/dark on selectable programmable
Compliance with standards and directives
Standard conformity
Product standardEN 60947-5-2:2007 EN 60947-5-2/A1:2012 IEC 60947-5-2 Edition 3.1:2012-09
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Profile width9 mm
Degree of protectionIP54
ConnectionM8 x 1 connector, 4-pin
Optical faceplastic


ECLASS 11.027270910
ECLASS 10.0.127270910
ECLASS 9.027270910
ECLASS 8.027270910
ECLASS 5.127270910
ETIM 8.0EC002549
ETIM 7.0EC002549
ETIM 6.0EC002549
ETIM 5.0EC002549
UNSPSC 12.139121528

Documents: AL2109-P-1820/40b/49/143

BrochuresLanguageFile TypeFile Size
Automation Light Grids: LGS and LGM SeriesENGPDF1965 KB
Automatisierungs-Lichtgitter Serie LGS und LGMGERPDF1976 KB
Instruction leaflets
Instruction leaflet / Beipackzettel ALLPDF418 KB

CAD+CAE: AL2109-P-1820/40b/49/143

CADFile TypeFile Size
3-D model / 3-D-ModellSTP52 KB
CAD Portal / CAD PortalLINK---

Approvals+Certificates: AL2109-P-1820/40b/49/143

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of Conformity / EU-KonformitätserklärungDOC-1903APDF183 KB
Canada, USA General PurposeE310569, Volume 1, Section 1LINK---

Associated Products: AL2109-P-1820/40b/49/143

Mounting set for backboard mounting of the elevator light curtains AL2109, Variety of possible uses in the areas of doors and elevators, Simple and fast mountingfa
Mounting set for mechanical extension of the elevator light curtains AL2109, Variety of possible uses in the areas of doors and elevators, Simple and fast mountingfa
Mounting set for lateral mounting of the elevator light curtains AL2109, Variety of possible uses in the areas of doors and elevators, Simple and fast mountingfa
Switching device for the simple electrical connection of sensors, Relay output for high power, 10-way programming switch for time functions and switching connection modes, Function: Switch device for sensor supplyfa

Function: AL2109-P-1820/40b/49/143

The AL2109 elevator light grid is used to protect elevator doors or for passenger monitoring and access control. Its special features include its dynamic beam crossover with up to 135 active sensors, object detection down to nearly zero millimeters and an ambient light limit greater than 100,000 Lux. The evaluation electronics and the power supply are completely integrated into the emitter and receiver element, so that no external equipment is necessary for operation. The system offers flexible mounting options and meets the newest standards in accordance with EN 81-70 and EN 12016.