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Siemens 3SK1211-2BW20

SIRIUS safety relay Output expansion 4RO with relay enabling circuits 4 NO contacts plus Relay signaling circuit 1 NC contact Us = 110-240 V AC/DC Spring-type terminal (push-in)

SiemensMFR # 3SK1211-2BW20SKU # CEY-8EF3B02F261F

product brand nameSIRIUS

product categorySafety relays

product designationOutput expansion

design of the productRelay enabling circuits

product type designation3SK1

safety-related circuitsYes

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About This Product

SIRIUS safety relay Output expansion 4RO with relay enabling circuits 4 NO contacts plus Relay signaling circuit 1 NC contact Us = 110-240 V AC/DC Spring-type terminal (push-in)

Siemens 3SK1211-2BW20

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 designationOutput expansion

design of the productRelay enabling circuits

product type designation3SK1

Product Function

safety-related circuitsYes

General technical data

certificate of suitability UL approvalYes

product feature protective coating on printed-circuit boardNo

power loss [W] maximum2 W

insulation voltage rated value300 V

degree of pollution3

overvoltage category3

surge voltage resistance rated value4 000 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

operating frequency maximum360 1/h

reference code according to IEC 81346-2F

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

SVHC substance nameLead CAS-No. 7439-92-1 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 4,4'-isopropylidenediphenol (Bisphenol A, BPA) CAS-No. 80-05-7

Net Weight0.193 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 necessaryYes

function test interval maximum1 a

stop category according to IEC 60204-10

proportion of dangerous failures with low demand rate according to SN 3192015 %

failure rate [FIT] with low demand rate according to SN 31920130 FIT

IEC 62061

SIL Claim Limit (subsystem) according to EN 620613

according to IEC 62061SIL 3

1.7E-9 1/h

0.0000000017 1/h

ISO 13849

category according to EN ISO 13849-14

according to ISO 13849-1PL e

according to ISO 13849-14

device type according to ISO 13849-11

overdimensioning according to ISO 13849-2 necessaryNo

IEC 61508

according to IEC 615083

safety device type according to IEC 61508-2Type A

PFHD with high demand rate according to IEC 615081.7E-9 1/h

PFHD with high demand rate according to IEC 615080.0000000017 1/h

1E-6

0.000001

Safe failure fraction (SFF)99 %

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

Short-circuit protection

design of the fuse link for short-circuit protection of the NO contacts of the relay outputs requiredgL/gG: 6A or circuit breaker type A: 3A or circuit breaker type B: 2A or circuit breaker type C: 1A

Inputs

feedback inputNo

Outputs

— 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 contact4

— safety-related delayed switching0

mechanical service life (operating cycles) typical10 000 000

thermal current of the switching element with contacts maximum5 A

— delayed switching0

at 24 V5 A

at 115 V0.2 A

at 230 V0.1 A

at 24 V5 A

at 115 V5 A

at 230 V5 A

total current maximum12 A

operational current at 17 V minimum5 mA

Times

typical35 ms

at AC maximum35 ms

typical35 ms

maximum35 ms

typical200 ms

maximum300 ms

recovery time after power failure typical0.32 s

Control circuit/ Control

type of voltage of the control supply voltageAC/DC

at 50 Hz rated value110 ... 240 V

at 60 Hz rated value110 ... 240 V

1 rated value50 Hz

2 rated value60 Hz

control supply voltage at DC rated value110 ... 240 V

initial value0.85

full-scale value1.1

at 50 Hz0.85 ... 1.1

at 60 Hz0.85 ... 1.1

at AC maximum35 ms

at DC maximum35 ms

OFF-delay time maximum300 ms

Installation/ mounting/ dimensions

mounting positionany

fastening methodscrew and snap-on mounting

height100 mm

width22.5 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 8

Genuine accessories that can be used with the Siemens 3SK1211-2BW20 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
3RA2908-1A	Aksesuar · Miscellaneous accessories · screwdrivers
3RT2900-1SB20	Aksesuar · Miscellaneous accessories · labeling plates
3ZY1311-0AA00	Aksesuar · Further accessories
3ZY1212-2AB00	Aksesuar · Device connector
3ZY1321-2AA00	Aksesuar · Further accessories
3ZY1440-1AA00	Aksesuar · Further accessories
3ZY1121-2BA00	Yedek parça · Removable terminals
3ZY1450-1BB00	Yedek parça · Further accessories