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SiRON K035D Series Ultra-thin light curtain (side detection)

Name: SiRON K035D Series Ultra-thin light curtain (side detection)
Brand: SiRON
Rating: 5.0 (53 reviews)

* It adopts infrared communication and a dedicated optical system, with strong anti-interference ability;
* Automatic shielding and setting shielding functions;
* Unique optical synchronization technology, replacing traditional data cable synchronization;
* Dual independent redundant outputs were adopted.

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Model:
K035D
Brand:
SiRON

Industrial safety light curtain for machine Punch press safety light curtain Automation equipment light curtain sensor Machine guard safety light barrier Reverse connection protection light curtain

Product Description

Model Code

Ultra-thin Light Curtain (Side Detection) Series	K035D
Number of optical axes	4: 4 axes, 6: 6 axes, 8: 8 axes (For other axis quantities, refer to the selection table)
Optical Axis Pitch	10：10mm 20：20mm 40：40mm
Output Mode	Blank: NPN Output P: PNP Output NP: NPN + PNP Output
Operating Status	Blank: Normally Closed NO: Normally Open
Synchronization Mode	Blank: Line Synchronization G: Optical Synchronization

Model Selection Example：

K035D-8-10：K035D series, 8 optical axes, 10mm optical axis pitch, NPN output, normally closed, wire synchronization.
K035D-8-10NP-NO-G：K035D series, 8 optical axes, 10mm optical axis pitch, NPN+PNP dual output, normally

Note: Wire synchronization supports either NPN or PNP output optionally; optical synchronization only adopts NPN+PNP dual output.

Specification parameter

Name	Ultra-thin light curtain (side detection)
Appearance
Cross-sectional area	30×16mm
Number of channels	single channel
Number of optical axes	4、6、8、10 axi……
Protection height	Protection height H=(N-1)*Optical axis spacing,N is the number of optical axes
Protection distance*	0.2~3M
Optical axis spacing	10mm/20mm/40mm
Working power supply	24V±10%
Power	3~8W
Circuit Protection	Reverse connection protection / Output short-circuit protection
Response time	≤10ms
Operating ambient temperature	-10~+55℃
Storage ambient temperature	-40~+70℃
Insulation resistance	≥100MΩ
Signal Output	NPN/PNP
Anti-optical interference	10000Lux
Synchronous mode	Wire Synchronization / Optical Synchronization
IP rating	IP 65
Circuit protection	Reverse connection protection / Output short-circuit protection

Schematic diagram of optical axis spacing

屏幕截图 2026-04-30 093117

Optical axis spacing is 10mm (protection distanc:0.2~ 3m)

Optical Axis Pitch	10mm
Number of Optical Axes	4 axes	6 axes	8 axes	10 axes	12 axes	14 axes	16 axes	18 axes	20 axes	22 axes	24 axes	26 axes	28 axes	30 axes
Protection Height (mm)	30	50	70	90	110	130	150	170	190	210	230	250	270	290
Overall Height of Light Curtain (mm)	101	101	101	121	141	161	181	201	221	241	261	281	301	321

Optical Axis Pitch	10mm
Number of Optical Axes	32 axes	34 axes	36 axes	38 axes	40 axes	42 axes	44 axes	46 axes	48 axes	50 axes	52 axes	54 axes	56 axes	58 axes	60 axes
Protection height (mm)	310	330	350	370	390	410	430	450	470	490	510	530	550	570	590
Overall Height of Light Curtain (mm)	341	361	381	401	421	441	461	481	501	521	541	561	581	601	621

Optical axis spacing is 20mm (protection distance:0.2~3m)

Optical Axis Pitch	20mm
Number of optical axis	4 axes	6 axes	8 axes	10 axes	12 axes	14 axes	16 axes	18 axes	20 axes	22 axes	24 axes	26 axes	28 axes	30 axes
Protection height (mm)	60	100	140	180	220	260	300	340	380	420	460	500	540	580
Overall Height of Light Curtain (mm)	101	141	181	221	261	301	341	381	421	461	501	541	581	621

Optical Axis Pitch	20mm
Number of optical axis	32 axes	34 axes	36 axes	38 axes	40 axes	42 axes	44 axes	46 axes	48 axes	50 axes	52 axes	54 axes	56 axes	58 axes	60 axes
Protection height (mm)	620	660	700	740	780	820	860	900	940	980	1020	1060	1100	1140	1180
Overall Height of Light Curtain (mm)	661	701	741	781	821	861	901	941	981	1021	1061	1101	1141	1181	1221

Optical axis spacing is 40mm (protection distance:0.2~3m)

Optical Axis Pitch	40mm
Number of optical axis	4 axes	6 axes	8 axes	10 axes	12 axes	14 axes	16 axes	18 axes	20 axes	22 axes	24 axes	26 axes	28 axes	30 axes
Protection height (mm)	120	200	280	360	440	520	600	680	760	840	920	1000	1080	1160
Overall Height of Light Curtain (mm)	181	261	341	421	501	581	661	741	821	901	981	1061	1141	1221

Optical Axis Pitch	40mm
Number of optical axis	32 axes	34 axes	36 axes	38 axes	40 axes	42 axes	44 axes	46 axes	48 axes	50 axes	52 axes	54 axes	56 axes	58 axes	60 axes
Protection height (mm)	1240	1320	1400	1480	1560	1640	1720	1800	1880	1960	2040	2120	2200	2280	2360
Overall Height of Light Curtain (mm)	1301	1381	1461	1541	1621	1701	1781	1861	1941	2021	2101	2181	2261	2341	2421

Wiring diagram

屏幕截图 2026-04-30 104308

Attachment

Outline Drawing

Installation instructions

When installing the light curtain, ensure a safe distance between the light curtain and the hazardous area. If the machine does not stop before personnel reach the hazardous area, it may cause serious injury or even death. Calculate the safety distance correctly and keep the minimum safe distance between the detection area and the hazardous parts of the machine. The safety distance refers to the minimum distance between the detection plane of the light curtain and the cutting edges of machine hazardous parts.

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