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SIEMENS 3SK1121-1CB41 3SK1121-1CB41 SIEMENS SIRIUS safety relay Basic unit Advanced series with time delay 0.05-3 s Relay enabling.. View larger
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3SK1121-1CB41 SIEMENS SIRIUS safety relay Basic unit Advanced series with time delay 0.05-3 s Relay enabling..

3SK1121-1CB41

11211

SIEMENS

1 Pcs.

SIRIUS safety relay Basic unit Advanced series with time delay 0.05-3 s Relay enabling circuits 2 NO instantaneous 2 NO delayed Us = 24 V DC screw terminal SIRIUS Safety Relay; Advanced Base Unit; Delay 0.05-3S; 2 NO (Instant) + 2 NO (With Delay); 24 V DC; screw connection.

Automation > Device for monitoring of safety-related circuits
Limit Switches and safety relays

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Technical data

SIRIUS safety relay Basic unit Advanced series with time delay 0.05-3 s Relay enabling circuits 2 NO instantaneous 2 NO delayed Us = 24 V DC screw terminal
product brand nameSIRIUS
product categorySafety relays
product designationsafety relays
design of the productRelay enabling circuits
General technical data
protection class IP of the enclosureIP20
touch protection against electrical shockfinger-safe
insulation voltage rated value300 V
ambient temperature
● during storage-40 ... +80 °C
● during operation-25 ... +60 °C
air pressure according to SN 31205900 ... 1 060 hPa
relative humidity during operation10 ... 95 %
installation altitude at height above sea level maximum2 000 m
vibration resistance according to IEC 60068-2-65 ... 500 Hz: 0.75 mm
shock resistance10g / 11 ms
surge voltage resistance rated value4 000 V
EMC emitted interferenceIEC 60947-5-1, Class A
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.
overvoltage category3
degree of pollution3
reference code according to IEC 81346-2F
power loss [W] maximum2.5 W
number of sensor inputs 1-channel or 2-channel1
design of the cascadingyes
type of the safety-related wiring of the inputssingle-channel and two-channel
product feature cross-circuit-proofYes
Safety Integrity Level (SIL)
● according to IEC 620613
● according to IEC 615083
● for delayed release circuit according to IEC 61508SIL3
performance level (PL)
● according to ISO 13849-1e
● for delayed release circuit according to EN ISO 13849-1e
category according to EN ISO 13849-14
Safe failure fraction (SFF)99 %
PFHD with high demand rate according to EN 620610.0000000037 1/h
PFDavg with low demand rate according to IEC 615080.000007
T1 value for proof test interval or service life according to IEC 6150820 y
hardware fault tolerance according to IEC 615081
safety device type according to IEC 61508-2Type B
Inputs/ Outputs
number of outputs as contact-affected switching element
● as NO contact
— safety-related instantaneous contact2
— safety-related delayed switching2
stop category according to EN 60204-10 / 1
design of input
● cascading input/functional switchingYes
● feedback inputYes
● start inputYes
type of electrical connection plug-in socketNo
operating frequency maximum360 1/h
switching capacity current
● of the NO contacts of the relay outputs
— at DC-13
— at 24 V3 A
— at 115 V0.2 A
— at 230 V0.1 A
— at AC-15
— at 115 V3 A
— at 230 V3 A
thermal current of the switching element with contacts maximum5 A
total current maximum12 A
operational current at 17 V minimum5 mA
mechanical service life (switching cycles) typical10 000 000
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
wire length
● with Cu 1.5 mm² and 150 nF/km per sensor circuit maximum4 000 m
make time with automatic start
● at DC maximum110 ms
make time with automatic start after power failure
● typical6 500 ms
● maximum6 500 ms
make time with monitored start
● maximum110 ms
backslide delay time after opening of the safety circuits typical40 ms
backslide delay time in the event of power failure
● typical30 ms
● maximum40 ms
adjustable OFF-delay time after opening of the safety circuits0.05 ... 3
recovery time after opening of the safety circuits typical30 ms
recovery time after power failure typical6.5 s
pulse duration
● of the sensor input minimum75 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
operating range factor control supply voltage rated value of magnet coil
● at DC0.8 ... 1.2
Installation/ mounting/ dimensions
mounting positionany
required spacing for grounded parts at the side5 mm
fastening methodscrew and snap-on mounting
width22.5 mm
height100 mm
depth121.6 mm
Connections/ Terminals
type of electrical connectionscrew-type terminals
type of connectable conductor cross-sections
● solid1x (0.5 ... 2.5 mm²), 2x (1.0 ... 1.5 mm²)
● finely stranded
— with core end processing1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²)
type of connectable conductor cross-sections at AWG cables
● solid1x (20 ... 14), 2x (18 ... 16)
● stranded1x (20 ... 16), 2x (20 ... 16)
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, time delay
suitability for operation device connector 3ZY12Yes
suitability for interaction press controlYes
suitability for use
● safety switchYes
● monitoring of floating sensorsYes
● monitoring of non-floating sensorsYes
● magnetically operated switch monitoringYes
● safety-related circuitsYes
Certificates/ approvals

Downloads and manuals

General Product ApprovalEMC

CSA

CCC

Confirmation

UL

EAC

RCM

Functional Safety/Safety of MachineryDeclaration of ConformityTest CertificatesMarine / Shipping

Type Examination Certificate

EC/EU-Declaration of Conformity

Type Test Certificates/Test Report

DNV / Det Norske Veritas

LR (Lloyds Register)

RINA / Registro Italiano Navale

Marine / ShippingotherRailway

RMRS / Russian Maritime Register

Confirmation

Confirmation

Further information
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last modified:3/29/2022
Date
5/2/2022		Subject to change without notice
© Copyright Siemens 2022


Additional data

Product
Article Number (Market Facing Number)3SK1121-1CB41
Product DescriptionSIRIUS safety relay Basic unit Advanced series with time delay 0.05-3 s Relay enabling circuits 2 NO instantaneous 2 NO delayed Us = 24 V DC screw terminal
Product familySIRIUS 3SK1 Advanced basic units
Product Lifecycle (PLM)PM300:Active Product
Price data
Region Specific PriceGroup / Headquarter Price Group41L / 41L
Surcharge for Raw MaterialsNone
Metal FactorNone
Delivery information
Export Control RegulationsAL : N / ECCN : N
Standard lead time ex-works180 Day/Days
Net Weight (kg)0,293 Kg
Packaging Dimension36,00 x 109,00 x 152,00
Package size unit of measureMM
Quantity Unit1 Piece
Packaging Quantity1
Additional Product Information
EAN4011209913592
UPC887621272500
Commodity Code85371098
LKZ_FDB/ CatalogIDCC-IC10
Product Group3761
Group CodeR711
Country of originGermany
Compliance with the substance restrictions according to RoHS directiveSince: 05.11.2012
Product classA: Standard product which is a stock item could be returned within the returns guidelines/period.
WEEE (2012/19/EU) Take-Back ObligationYes
REACH Art. 33 Duty to inform according to the current list of candidates

Information obligation imposed by Article 33, REACH Regulation: This product includes one or several articles in which the following substance of the candidate list is contained in concentrations higher than 0,1% weight by weight (w/w):

Lead

Based on the information currently available, we assume that these substances do not pose any risk if the articles are used as intended (including disposal). Please also refer to product documentation.

Information obligation imposed by Article 33, REACH Regulation: This product includes one or several articles in which the following substance of the candidate list is contained in concentrations higher than 0,1% weight by weight (w/w):

Lead monoxide (lead oxide)

Based on the information currently available, we assume that these substances do not pose any risk if the articles are used as intended (including disposal). Please also refer to product documentation.

Information obligation imposed by Article 33, REACH Regulation: This product includes one or several articles in which the following substance of the candidate list is contained in concentrations higher than 0,1% weight by weight (w/w):

Lead titanium zirconium oxide

Based on the information currently available, we assume that these substances do not pose any risk if the articles are used as intended (including disposal). Please also refer to product documentation.

Information obligation imposed by Article 33, REACH Regulation: This product includes one or several articles in which the following substance of the candidate list is contained in concentrations higher than 0,1% weight by weight (w/w):

4,4'-isopropylidenediphenol (Bisphenol A, BPA)

Based on the information currently available, we assume that these substances do not pose any risk if the articles are used as intended (including disposal). Please also refer to product documentation.

Information obligation imposed by Article 33, REACH Regulation: This product includes one or several articles in which the following substance of the candidate list is contained in concentrations higher than 0,1% weight by weight (w/w):

2-benzyl-2-dimethylamino-4'-morpholinobutyrophenone

Based on the information currently available, we assume that these substances do not pose any risk if the articles are used as intended (including disposal). Please also refer to product documentation.

Classifications
VersionClassification
eClass627-37-18-19
eClass7.127-37-18-19
eClass827-37-18-19
eClass927-37-18-19
eClass9.127-37-18-19
ETIM5EC001449
ETIM6EC001449
ETIM7EC001449
ETIM8EC001449
IDEA45166
UNSPSC1539-12-22-05

ETIM data

ETIM: EC001449 - Device for monitoring of safety-related circuits

Value Unit
Model (EF000010) -
Suitable for monitoring of position switches (EF007270) true
Suitable for monitoring of emergency-stop circuits (EF007268) true
Suitable for monitoring of valves (EF007272) -
Suitable for monitoring of optoelectronic protection equipment (EF007269) true
Suitable for monitoring of tactile sensors (EF007271) -
Suitable for monitoring of magnetic switches (EF007266) true
Suitable for monitoring of proximity switches (EF007267) -
Type of electric connection (EF003961) Screw connection
Rail mounting possible (EF003972) FALSE
Rated control supply voltage Us at DC (EF003980) ['-', '24']V
Voltage type for actuating (EF008242) DC
With detachable clamps (EF003340) false
Evaluation inputs (EF008245) One- and two-channel
With start input (EF003342) true
With muting function (EF004057) false
With feedback circuit (EF003343) true
Release-delay (EF001129) ['0.05', '3.0']s
Number of outputs, safety related, undelayed, semiconductors (EF003346) 0
Number of outputs, safety related, delayed, semiconductors (EF003347) 0
Number of outputs, signalling function, undelayed, semiconductors (EF003350) 0
Number of outputs, signalling function, delayed, semiconductors (EF003351) -
Category according to EN 954-1 (EF006782) -
Type of safety according to IEC 61496-1 (EF004105) -
Stop category according to IEC 60204 (EF007498) 0 + 1
Performance level according to EN ISO 13849-1 (EF007399) Level e
SIL according to IEC 61508 (EF009889) 3
With approval for TÜV (EF004144) true
With approval for BG BIA (EF004145) -
With approval according to UL (EF001783) true
Width (EF000008) 22.5mm
Height (EF000040) 100.0mm
Depth (EF000049) 121.6mm
Number of outputs, safety related, undelayed, with contact (EF003344) -
Number of outputs, safety related, delayed, with contact (EF003345) -
Number of outputs, signalling function, undelayed, with contact (EF003348) -
Number of outputs, signalling function, delayed, with contact (EF003349) -
Rated control supply voltage Us at AC 50HZ (EF003978) -V
Rated control supply voltage Us at AC 60HZ (EF003979) -V



Product Datasheet

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