Pepperl Fuchs LA31/LK31/31/115

Thru-beam sensor (pair)

MPN
LA31/LK31/31/115
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What is the Pepperl Fuchs LA31/LK31/31/115?

Cost-optimized series for standard tasks

Large construction with small housing

Highly visible LED

Version for universal voltages

Relay output

Wide range of mounting options

Thru-beam sensor, 30 m detection range, red light, dark on, AC/DC version, relay output, fixed cable, Cost-optimized series for standard tasks, Large construction with small housing, Highly visible LED, Version for universal voltages, Relay output

Specifications

System components

Order code (Pepperl+Fuchs part number)186502
EmitterLA31/115
ReceiverLK31/31/115
LifecycleActive (current Pepperl+Fuchs product)

General specifications

Effective detection range0 ... 30 m
Threshold detection range43 m
Light sourceLED
Light typemodulated visible red light , 630 nm
Alignment aidLED yellow:1. LED illuminates: Sufficient light signal received, emitter and receiver alignment is correct 2. LED flashes: Reaching switching point 3. LED off: Light beam is interrupted or the alignment is out
Diameter of the light spotapprox. 800 mm at a distance of 30 m
Opening angleEmitter: 0.5 ° , Receiver: 1.5 °
Ambient light limit50000 Lux ; according to EN 60947-5-2

Functional safety related parameters

MTTFd620 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %

Indicators/operating means

Operation indicatorLED green: power on
Function indicatorLED yellow:1. LED lit constantly: signal > 2 x switching point (operating reserve)2. LED flashes: signal between 1 x switching point and 2 x switching point3. LED off: signal < switching point

Electrical specifications

Operating voltage24 ... 240 V AC 12 ... 240 V DC UB
No-load supply currentEmitter: ≤ 20 mA Receiver: ≤ 20 mA I0
Power consumptionEmitter: ≤ 1 VA Receiver: ≤ 1 VA P0

Output

Switching typedark-on
Signal outputRelay, 1 alternator
Switching voltagemax. 250 V AC/DC
Switching currentmax. 3 A
Switching powerDC: max. 150 W AC: max. 750 VA
Switching frequency≤ 20 Hz f
Response time≤ 25 ms

Conformity

Product standardEN 60947-5-2

Compliance with standards and directives

Standard conformity: StandardsEN 62103

Approvals and certificates

Protection classII , rated voltage ≤ 250 V AC with pollution degree 1-2 according to IEC 60664-1 Output circuit basis insulation of input circuit according to EN 50178, rated insulation voltage 240 V AC
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

Degree of protectionIP67
ConnectionEmitter: 2 m fixed cable , 2-wire Receiver: 2 m fixed cable , 5-wire
Material: HousingPolycarbonate
Material: Optical facePMMA
MassEmitter: 116 g Receiver: 131 g
Dimensions: Height62 mm
Dimensions: Width18 mm
Dimensions: Depth35 mm

Downloads & documentation

Official documents from Pepperl Fuchs, downloaded directly from the manufacturer.

Data sheets & manuals

CAD & dimension drawings

Certificates (1)

LA31/LK31/31/115: frequently asked questions

When can LA31/LK31/31/115 be shipped?

LA31/LK31/31/115 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up LA31/LK31/31/115 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for LA31/LK31/31/115 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for LA31/LK31/31/115, subject to availability and destination.

More Pepperl Fuchs parts

Pepperl Fuchs LA31/LK31/31/115Price and lead time confirmed within 1 business day
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