Safety Light CurtainSL-C series


Main Unit, General-purpose Type, 120 Optical Axes

[Discontinued model]

This model has been discontinued.

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Effective aperture angle

Max. ±2.5° (when operating distance is at least 3 m 9.8')

Response time

15 ms *1

Light source

Infrared LED (850 nm)

Operation mode

Turned on when light is being applied to all optical axes (excluding when the blanking function is used)

Operating distance/Beam width

0.1 to 7 m 0.3' to 23.0'

No. of beam axes


Detection capability

ø14 mm ø0.55"(when the blanking function is not used)

Beam axis interval

20 mm 0.79"

Lens diameter

ø4 mm

Detection zone

1190 mm46.85"

Protection area

1214 mm47.795"

DetectingdistanceTransmitter lens: Norbornene plasticReceiver lens cover: Polyarylate

0.1 to 7 m 0.3' to 23.0'

OSSD output

Output type

2 outputs each for PNP and NPN, Can be switched using the connection connector cable

Max. load current

300 mA *2

OFF-state voltage

2.5 V (with a cable length of 7 m 23.0')

Leakage current

100 µA maximum*3

Max. capacitive load

2.2 µF (with a load resistance of 100 Ω)

Load wiring resistance

2.5 Ω maximum*4

Approved standards



IEC61496-1, EN61496-1, UL61496-1


EN55011 Class A, FCC Part15 Class A


IEC61496-1, EN61496-1, UL61496-1 (type 4 ESPE),IEC61496-2, EN61496-2, UL61496-2 (type 4 AOPD),UL508

Current consumption


139 mA


111 mA


Power voltage

24 VDC ±10% (Ripple P-P ±10% or less)

Environmental resistance

Enclosure rating

IP65 (IEC60529)

Ambient temperature

-10 to +55°C 14 to 131°F, No freezing

Ambient temperature for storage

-10 to +60°C 14 to 140°F, No freezing

Relative humidity

35 to 85%RH (no condensation)

Storage relative humidity

35 to 95%RH (no condensation)

Operating ambientluminance

Incandescent lamp: 5,000 lux or less, sunlight: 20,000 lux or less


10 to 55 Hz, double amplitude 0.7 mm 0.03", 20 sweeps each in X, Y, and Z directions

Shock resistance

100 m/s2 (Approx 10G) 16 ms pulse, in X, Y, Z directions 1000 times each axis


Main unit case


Upper case/lower case

Zinc die-cast

Front cover




Approx 850 g


Approx 940 g

*1 OFF→ON return time is 125 ms.
*2 Note the derating illustrated in the graph to the right when using PNP output.
*3 This includes situations in which the SL-C Series is off and in which the power supply line is disconnected.
*4 The wiring resistance between the OSSD output and the connected equipment (excluding the wiring resistance of the optional dedicated cable) must be 2.5 Ω or less to ensure that the SL-C Series operate correctly. If using the NPN output

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