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Siemens 3SK1220-2AB40

SIRIUS safety relay Input expansion Advanced Input expansion for an additional 2-channel or two 1-channel sensors Us = 24 V DC Spring-type terminal (push-in)

SiemensMFR # 3SK1220-2AB40SKU # CEY-8EF3B02F2612

product brand nameSIRIUS

product categorySafety relays

product designationSensor extension

product type designation3SK1

automatic startYes

light barrier monitoringYes

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About This Product

SIRIUS safety relay Input expansion Advanced Input expansion for an additional 2-channel or two 1-channel sensors Us = 24 V DC Spring-type terminal (push-in)

Siemens 3SK1220-2AB40

Genuine, certified Siemens product
Fast sourcing through a worldwide supply network
Product selection and compatibility support from our technical team
Equivalent and alternative product suggestions
Quotation and lead time tailored to your request

Specifications

product brand nameSIRIUS

product categorySafety relays

product designationSensor extension

product type designation3SK1

Product Function

product function parameterizablesensor floating / sensor non-floating, monitored start-up / automatic start, 1-channel / 2-channel sensor connection, cross-circuit detection, startup testing, antivalent sensors, 2-hand switches

automatic startYes

light barrier monitoringYes

protective door monitoringYes

magnetically operated switch monitoring NC-NOYes

magnetically operated switch monitoring NC-NCYes

laser scanner monitoringYes

light array monitoringYes

EMERGENCY OFF functionYes

monitored start-upYes

pressure-sensitive mat monitoringNo

product feature cross-circuit-proofYes

suitability for interaction press controlNo

monitoring of floating sensorsYes

monitoring of non-floating sensorsYes

position switch monitoringYes

EMERGENCY-OFF circuit monitoringYes

opto-electronic protection device monitoringYes

magnetically operated switch monitoringYes

safety-related circuitsYes

General technical data

certificate of suitability UL approvalYes

product feature protective coating on printed-circuit boardNo

power loss [W] maximum1.2 W

insulation voltage rated value50 V

degree of pollution3

overvoltage category3

surge voltage resistance rated value800 V

protection class IP of the enclosureIP20

shock resistance10 g / 11 ms

vibration resistance according to IEC 60068-2-65 ... 500 Hz: 0.75 mm

reference code according to IEC 81346-2F

Substance Prohibitance (day/month/year)11/05/2012

SVHC substance nameLead CAS-No. 7439-92-1 Lead monoxide (lead oxide) CAS-No. 1317-36-8 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-10-5 Melamine CAS-No. 108-78-1 6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol CAS-No. 119-47-1

Net Weight0.119 kg

Ambient conditions

installation altitude at height above sea level maximum4 000 m

noteDerating, see Product Notification 109792701

during operation-25 ... +60 °C

during storage-40 ... +80 °C

relative humidity during operation10 ... 95 %

air pressure according to SN 31205900 ... 1 060 hPa

Electromagnetic compatibility

installation environment regarding EMCThis product is suitable for Class A environments only. In household environments, this device can cause unwanted radio interference. The user is required to implement appropriate measures in this case.

EMC emitted interferenceIEC 60947-5-1, Class A

Safety related data

product function suitable for safety functionYes

safe stateSafety outputs switched off

test wear-related service life necessaryNo

function test interval maximum1 a

diagnostics test interval by internal test function maximum600 s

stop category according to IEC 60204-10

IEC 62061

SIL Claim Limit (subsystem) according to EN 620613

according to IEC 62061SIL 3

at single-channel evaluation according to IEC 620611

at 2-channel evaluation according to IEC 620613

1E-9 1/h

0.000000001 1/h

ISO 13849

category according to EN ISO 13849-14

according to ISO 13849-1PL e

at single-channel evaluation according to ISO 13849-1c

at 2-channel evaluation according to ISO 13849-1e

according to ISO 13849-14

at 2-channel evaluation according to ISO 13849-14

device type according to ISO 13849-11

IEC 61508

according to IEC 615083

at single-channel evaluation according to IEC 615081

at 2-channel evaluation according to IEC 615083

safety device type according to IEC 61508-2Type B

PFHD with high demand rate according to IEC 615081E-9 1/h

PFHD with high demand rate according to IEC 615080.000000001 1/h

1E-5

0.00001

Safe failure fraction (SFF)99 %

according to IEC 615081

at single-channel evaluation according to IEC 615080

at 2-channel evaluation according to IEC 615081

of service life according to IEC 6150820 a

for proof test interval or service life according to IEC 6150820 a

Electrical Safety

touch protection against electrical shockfinger-safe

Inputs

feedback inputNo

start inputYes

number of sensor inputs 1-channel or 2-channel1

Outputs

— for signaling function instantaneous contact0

— for signaling function delayed switching0

— safety-related instantaneous contact0

— safety-related delayed switching0

— for signaling function instantaneous contact0

— for signaling function delayed switching0

— safety-related instantaneous contact0

— safety-related delayed switching0

— delayed switching0

wire length between sensor and electronics evaluation device with Cu 1.5 mm² and 150 nF/km maximum4 000 m

Times

typical60 ms

at DC maximum60 ms

typical6 500 ms

maximum6 500 ms

typical60 ms

maximum60 ms

backslide delay time after opening of the safety circuits typical40 ms

recovery time after opening of the safety circuits typical30 ms

of the sensor input minimum60 ms

of the ON pushbutton input minimum0.15 s

Control circuit/ Control

type of voltage of the control supply voltageDC

control supply voltage at DC rated value24 V

initial value0.8

full-scale value1.2

Installation/ mounting/ dimensions

mounting positionany

fastening methodscrew and snap-on mounting

height100 mm

width17.5 mm

depth121.6 mm

with side-by-side mounting at the side0 mm

for grounded parts at the side5 mm

Connections/ Terminals

type of electrical connectionspring-loaded terminal (push-in)

solid1x (0.5 ... 1.5 mm²), 2x (0.5 ... 1.5 mm²)

finely stranded with core end processing1x (0.5 ... 1.0 mm²), 2x (0.5 ... 1.0 mm²)

finely stranded without core end processing1x (0.5 ... 1.5 mm²), 2x (0.5 ... 1.5 mm²)

for AWG cables solid1x (20 ... 16), 2x (20 ... 16)

for AWG cables stranded1x (20 ... 16), 2x (20 ... 16)

type of electrical connection plug-in socketNo

Accessories 5

Genuine accessories that can be used with the Siemens 3SK1220-2AB40 motor and are supplied separately are listed below. Click a code to open the accessory page and see the other compatible motors.

Part no	Description	Compatible motors
3ZY1311-0AA00	Aksesuar · Further accessories
3ZY1212-2AB00	Aksesuar · Device connector
3ZY1440-1AA00	Aksesuar · Further accessories
3RT2900-1SB20	Aksesuar · Miscellaneous accessories · labeling plates
3ZY1321-2AA00	Aksesuar · Further accessories