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Keyence GL-R20L

Main Unit, Body-protection Type, 20 Optical Axes. . Series: Safety Light Curtain. Series code: GL-R series

MPN: GL-R20L
Category: Safety Light Curtain

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12-month warranty (new) · 3-month (used/refurbished)
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What is the Keyence GL-R20L?

Main Unit, Body-protection Type, 20 Optical Axes. GL-R20L. Series: Safety Light Curtain. Series code: GL-R series

Specifications

Model Name	Main Unit, Body-protection Type, 20 Optical Axes
Model Code	GL-R20L
Series Title	Safety Light Curtain
Series Code	GL-R series
Data Sheet URL	https://www.keyence.com/download/download/confirmation/?dlSeriesId=WS_SR54488&dlModelId=PM_24720L&dlSiteId=1&dlLanguageId=en-US&dlLangType=en-US
CAD URL	https://www.keyence.com/products/safety/light-curtain/gl-r/downloads/?mode=cd&modelId=PM_24720L
Manuals URL	https://www.keyence.com/products/safety/light-curtain/gl-r/downloads/?mode=ma&modelId=PM_24720L
Model	GL-R20L
Detection capability	ø1.77" ø45 mm
Total length	31.50" 800mm
No. of beam	20
Detection height	29.92" 760mm
Protection height	33.27" 845mm
Beam axis spacing/Lens diameter	40 mm / ø5 1.57" / ø0.20"
Detecting distance	0.66 to 49.21' 0.2 to 15 m*1
Effective aperture angle	Max. ±2.5° (When operating distance is 9.84' 3 m or more)
Light source	Infrared LED (870 nm)
Response time (OSSD) (ms) - Wire synchronization, One-line orOptical synchronization system (Channel 0)	6.6
Response time (OSSD) (ms)	48.7*2
Response time (OSSD) (ms) - Optical synchronization system (Channel A or B)	8.8
Detection mode	Turns on when no interruptions are present in the detection zone
Synchronization between the transmitter and receiver	Optical synchronization or Wire synchronization (Determined by wiring)
Light interference prevention function	Prevents mutual interference in up to two GL-R systems.Optical synchronization: prevented by Channel A and B with setting switchWire synchronization: prevented automatically
Control output (OSSD output) - Output	2 transistor outputs. (PNP or NPN is determined by the cable type)
Control output (OSSD output) - Max. load current	500 mA*4
Control output (OSSD output) - Residual voltage (during ON)	Max. 2.5 V (with a cable length of 16.40' 5 m)
Control output (OSSD output) - OFF state voltage	Max. 2.0 V (with a cable length of 16.40' 5 m)
Control output (OSSD output) - Leakage current	Max. 200 µA
Control output (OSSD output) - Max. capacitive load	2.2 µF
Control output (OSSD output) - Load wiring resistance	Max. 2.5 Ω
Supplemental output (Non-safety-related output) - AUX	transistor outputs. (PNP or NPN is determined by the cable type)Load current: Max. 50 mA, Residual voltage: Max. 2.5 V (with a cable length of 16.40' 5 m)
Supplemental output (Non-safety-related output) - Muting lamp output	Incandescent lamp (24 VDC, 1 to 5.5 W)LED lamp (load current: 10 to 230 mA) can be connected.
External input - When using a PNP output cable	ON voltage: 10 to 30 VOFF voltage: Open or 0 to 3 VShort circuit current: Approx. 2.5 mA (Approx. 10 mA with EDM input only)
External input - When using an NPN output cable	ON voltage: 0 to 3 VOFF voltage: Open or 10 V or moreUp to the power voltageShort circuit current: Approx. 2.5 mA (Approx. 10 mA with EDM input only)
Power supply - Power voltage	24 VDC ±20%, ripple (P-P) 10% or less, Class 2
Power supply - Currentconsumption (Max.) (mA)	54
Power supply	75
Protection circuit	Reverse current protection, short-circuit protection for each output, surge protection for each output
Approved standards - EMC	IEC61496-1, EN61496-1, UL61496-1
Approved standards	EN55011 ClassA, FCC Part15B ClassA, ICES-003 ClassA
Approved standards - Safety	IEC61496-1, EN61496-1, UL61496-1 (Type 4 ESPE)IEC61496-2, EN61496-2, UL61496-2 (Type 4 AOPD)IEC61508, EN61508 (SIL3), IEC62061, EN62061 (SIL CL3)EN ISO13849-1:2015 (Category 4, PLe)UL508UL1998
Environmental resistance - Enclosure rating	IP65/IP67 (IEC60529)
Environmental resistance - Overvoltage category	II
Environmental resistance - Ambient light	Incandescent lamp: 3,000 lux or less., Sunlight: 20,000 lux or less
Environmental resistance - Operating ambient temperature	-10 to +55 °C 14 to 131 °F (No freezing)
Environmental resistance - Operating relative humidity	15 to 85 % RH (No condensation)
Environmental resistance - Storage temperature	-25 to +60 °C -13 to 140 °F (No freezing)
Environmental resistance - Storage relative humidity	15 to 95 % RH
Environmental resistance - Vibration resistance	10 to 55 Hz, Double amplitude 0.7 mm 0.03", 20 sweeps in each of the X, Y, and Z directions
Environmental resistance - Shock resistance	100 m/s2 (Approx. 10 G), 16 ms pulse, 1,000 times in each of the X, Y, and Z directions
Material - Main unit case	Aluminum
Material - Upper case/lower case	Nylon (GF 30%)
Material - Front cover	Polycarbonate, SUS304
Weight - Transmitter	1110 g

GL-R20L: frequently asked questions

When can GL-R20L be shipped?

GL-R20L 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 GL-R20L 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 GL-R20L 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 GL-R20L, subject to availability and destination.