3TK2810-1KA42-0AA0
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From SIEMENS

SIRIUS safety relay Safety-oriented Speed monitoring 110-240 V AC/DC, 45 mm overall width Spring-type terminal EC instantaneous: 2 NO EC delayed: 0 SC: 2 electrical NAMUR version Auto-start/manual start Basic device Maximum achievable PL according to EN 13849-1: e Maximum achievable SIL according to IEC 61508: 3
General technical data
Product brand nameSIRIUS
Product designationSpeed monitor
Design of the productstandstill and speed monitoring
Protection class IP of the enclosureIP20
Protection class IP of the terminalIP20
Protection against electrical shockfinger-safe
Insulation voltage rated value300 V
Ambient temperature
during storage-20 ... +70 °C
during operation0 ... 60 °C
Air pressure acc. to SN 3120590 ... 106 kPa
Relative humidity during operation10 ... 95 %
Installation altitude at height above sea level maximum2 000 m
Vibration resistance acc. to IEC 60068-2-610 ... 55 Hz: 0.35 mm
Shock resistance8g / 10 ms
Surge voltage resistance rated value4 000 V
EMC emitted interferenceEN 60947-5-1
Installation environment regarding EMCThis product is suitable for Class A environments only. It can cause undesired radio-frequency interference in residential environments. If this is the case, the user must take appropriate measures.
Reference code acc. to DIN 40719 extended according to IEC 204-2 acc. to IEC 750KT
Reference code acc. to DIN EN 61346-2F
Number of sensor inputs
2-channel3
1-channel or 2-channel0
Design of the cascadingnone
Type of the safety-related wiring of the inputssingle-channel or two-channel
Product feature cross-circuit-proofYes
Safety Integrity Level (SIL)
acc. to IEC 615083
for delayed release circuit acc. to IEC 61508SIL3
SIL Claim Limit (subsystem) acc. to EN 620613
Performance level (PL)
acc. to EN ISO 13849-1e
for delayed release circuit acc. to EN ISO 13849-1e
Category acc. to EN 954-14
Category acc. to EN ISO 13849-14
Hardware fault tolerance acc. to IEC 615081
Safety device type acc. to IEC 61508-2Type B
PFHD with high demand rate acc. to EN 620610.0000000034 1/h
T1 value for proof test interval or service life acc. to IEC 6150820 y
Number of outputs as contact-affected switching element
as NC contact
— for signaling function instantaneous contact0
— for signaling function delayed switching0
— safety-related instantaneous contact0
— safety-related delayed switching0
as NO contact
— for signaling function instantaneous contact0
— for signaling function delayed switching0
— safety-related instantaneous contact1
— safety-related delayed switching1
Number of outputs as contact-less semiconductor switching element
safety-related
— delayed switching0
— instantaneous contact0
for signaling function
— delayed switching1
— instantaneous contact1
Stop category acc. to DIN EN 60204-10
General technical data
Design of input
cascading input/functional switchingNo
feedback inputYes
Start inputYes
Type of electrical connection Plug-in socketYes
Switching capacity current
of semiconductor outputs
— for signaling function at DC-13 at 24 V0.02 A
of the NO contacts of the relay outputs at DC-13
— at 24 V2 A
of the NO contacts of the relay outputs at AC-15
— at 24 V3 A
— at 230 V3 A
of the NC contacts of the relay outputs at AC-15
— at 24 V3 A
— at 115 V3 A
— at 230 V2 A
Thermal current of the switching element with contacts maximum5 A
Electrical endurance (switching cycles) typical100 000
Mechanical service life (switching cycles) typical50 000 000
Design of the fuse link for short-circuit protection of the NO contacts of the relay outputs requiredgL/gG: 4 A
Control circuit/ Control
Type of voltage of the control supply voltageAC/DC
Control supply voltage frequency
1 rated value50 Hz
2 rated value60 Hz
Control supply voltage 1
at DC110 ... 240 V
Control supply voltage 1 at AC
at 50 Hz110 ... 240 V
at 60 Hz110 ... 240 V
Operating range factor control supply voltage rated value of magnet coil
at AC
— at 50 Hz0.8 ... 1.1
— at 60 Hz0.8 ... 1.1
at DC0.8 ... 1.1
Installation/ mounting/ dimensions
Mounting positionany
Mounting typescrew and snap-on mounting
Width45 mm
Height107.7 mm
Depth124.3 mm
Connections/Terminals
Type of electrical connectionspring-loaded terminals
Type of connectable conductor cross-sections
solid0.5 ... 4 mm²
finely stranded
— with core end processing2 x (0.25 ... 1.5 mm²)
— without core end processing2x (0.25 ... 1.5 mm²)
Type of connectable conductor cross-sections at AWG conductors
solid2x (24 ... 16)
stranded2x (20 ... 16)
Product Function
Product function
Light barrier monitoringNo
Standstill monitoringYes
protective door monitoringYes
Automatic startYes
magnetically operated switch monitoring NC-NONo
rotation speed monitoringYes
laser scanner monitoringNo
monitored start-upYes
Light array monitoringNo
magnetically operated switch monitoring NC-NCNo
EMERGENCY OFF functionYes
Pressure-sensitive mat monitoringNo
Suitability for interaction press controlNo
Suitability for use
Monitoring of floating sensorsYes
Monitoring of non-floating sensorsNo
safety switchYes
position switch monitoringYes
EMERGENCY-OFF circuit monitoringNo
valve monitoringNo
tactile sensor monitoringNo
magnetically operated switch monitoringNo
safety-related circuitsYes

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