Pepperl Fuchs LA31/LK31/31/115
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Quick facts
| Availability | Confirmed on request |
| Category | Thru-Beam Sensors |
| Lifecycle | active |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
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.
Thru-beam sensor (pair). 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. Emitter: LA31/115. Receiver: LK31/31/115. Effective detection range: 0 ... 30 m. Threshold detection range: 43 m. Light source: LED. Light type: modulated visible red light , 630 nm. Alignment aid: LED 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 spot: approx. 800 mm at a distance of 30 m. Opening angle: Emitter: 0.5 ° , Receiver: 1.5 °. Ambient light limit: 50000 Lux ; according to EN 60947-5-2. MTTFd: 620 a. Mission Time (TM): 20 a. Diagnostic Coverage (DC): 0 %. Operation indicator: LED green: power on. Function indicator: LED 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. Operating voltage: 24 ... 240 V AC 12 ... 240 V DC. No-load supply current: Emitter: ≤ 20 mA Receiver: ≤ 20 mA. Power consumption: Emitter: ≤ 1 VA Receiver: ≤ 1 VA. Switching type: dark-on. Signal output: Relay, 1 alternator. Switching voltage: max. 250 V AC/DC. Switching current: max. 3 A. Switching power: DC: max. 150 W AC: max. 750 VA. Switching frequency: ≤ 20 Hz. Response time: ≤ 25 ms. Product standard: EN 60947-5-2. Standard conformity: . StandardsEN 62103: . Standards: EN 62103. Protection class: II , 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 approval: Certified by China Compulsory Certification (CCC). Ambient temperature: -25 ... 55 °C (-13 ... 131 °F). Storage temperature: -40 ... 70 °C (-40 ... 158 °F). Degree of protection: IP67. Connection: Emitter: 2 m fixed cable , 2-wire Receiver: 2 m fixed cable , 5-wire. Material: . HousingPolycarbonateOptical facePMMA: . Housing: Polycarbonate. Optical face: PMMA. Mass: Emitter: 116 g Receiver: 131 g. Dimensions: . Height62 mmWidth18 mmDepth35 mm: . Height: 62 mm. Width: 18 mm. Depth: 35 mm
Specifications
System components
| Emitter | LA31/115 |
| Receiver | LK31/31/115 |
General specifications
| Effective detection range | 0 ... 30 m |
| Threshold detection range | 43 m |
| Light source | LED |
| Light type | modulated visible red light , 630 nm |
| Alignment aid | LED 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 spot | approx. 800 mm at a distance of 30 m |
| Opening angle | Emitter: 0.5 ° , Receiver: 1.5 ° |
| Ambient light limit | 50000 Lux ; according to EN 60947-5-2 |
Functional safety related parameters
| MTTFd | 620 a |
| Mission Time (TM) | 20 a |
| Diagnostic Coverage (DC) | 0 % |
Indicators/operating means
| Operation indicator | LED green: power on |
| Function indicator | LED 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 voltage | 24 ... 240 V AC 12 ... 240 V DC UB |
| No-load supply current | Emitter: ≤ 20 mA Receiver: ≤ 20 mA I0 |
| Power consumption | Emitter: ≤ 1 VA Receiver: ≤ 1 VA P0 |
Output
| Switching type | dark-on |
| Signal output | Relay, 1 alternator |
| Switching voltage | max. 250 V AC/DC |
| Switching current | max. 3 A |
| Switching power | DC: max. 150 W AC: max. 750 VA |
| Switching frequency | ≤ 20 Hz f |
| Response time | ≤ 25 ms |
Conformity
| Product standard | EN 60947-5-2 |
Compliance with standards and directives
| Standard conformity | |
| StandardsEN 62103 | Standards |
| Standards | EN 62103 |
Approvals and certificates
| Protection class | II , 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 approval | Certified 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 protection | IP67 |
| Connection | Emitter: 2 m fixed cable , 2-wire Receiver: 2 m fixed cable , 5-wire |
| Material | |
| HousingPolycarbonateOptical facePMMA | Housing |
| Housing | Polycarbonate |
| Optical face | PMMA |
| Mass | Emitter: 116 g Receiver: 131 g |
| Dimensions | |
| Height62 mmWidth18 mmDepth35 mm | Height |
| Height | 62 mm |
| Width | 18 mm |
| Depth | 35 mm |
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