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Siemens 3TK2835-2AJ20 — Safety Relays

Siemens 3TK2835-2AJ20

MPN3TK2835-2AJ20

SAFETY COMBINATION, SIGUARD PRESS CONTROL UNIT FOR USE IN PRESSES AND STAMP. MACHINES, TWO-HAND CONTROL UNIT, 3NO ENABL., 1NC SIGN. CONTACTS, AC 115 V, CAGE CLAMP

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3TK2835-2AJ20 key specifications
ParameterValue
Mountingscrew and snap-on mounting
Type of electrical connectionspring-loaded terminals
Safety device type acc. to IEC 61508-2Type A
Type of electrical connection plug-in socketYes
Type of voltage of the control supply voltageAC
Insulation voltage rated value300 V
Surge voltage resistance rated value4 000 V
Thermal current of the switching element with contacts maximum5 A
Design of the fuse link for short-circuit protection of the NO contacts of the relay outputs requiredgL/gG: 6 A, or quick: 10 A
Operating frequency maximum1 000 1/h
Protection class IP of the enclosureIP20
Mounting positionany
3TK2835-2AJ20 — By operating voltage
ParameterValue
At 24 V2 A
At 115 V3 A
At 230 V3 A
3TK2835-2AJ20 — By frequency
ParameterValue
At 50 Hz0.85 ... 1.1
At 60 Hz0.85 ... 1.1
At 50 Hz rated value115 V
At 60 Hz rated value115 V

All specifications

3TK2835-2AJ20 additional specifications
ParameterValue
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.
Installation altitude at height above sea level maximum2 000 m
DC resistance of the cable maximum30 Ω
Protection class IP of the terminalIP20
Shock resistance8g / 10 ms
EMC emitted interferenceEN 60947-5-1
Relative humidity during operation10 ... 95 %
Protection against electrical shockfinger-safe
Vibration resistance acc. to IEC 60068-2-65 ... 500 Hz: 0,075 mm
Depth120 mm
Width45 mm
Height138.5 mm
UL approvalYes
Hardware fault tolerance acc. to IEC 615081
Solid2x (24 ... 16)
At DC0.85 ... 1.1
Stranded2x (24 ... 16)
2-Channel1
Start inputNo
1 rated value50 Hz
2 rated value60 Hz
Safety switchYes
At AC maximum50 ms
During storage-40 ... +80 °C
Feedback inputNo
Automatic startNo
During operation-25 ... +60 °C
Valve monitoringNo
Delayed switching0
Monitored Start-UpNo
Design of the productfor press control units
Instantaneous contact0
Standstill monitoringNo
EMERGENCY OFF functionNo
Light array monitoringNo
Safety-Related circuitsYes
Laser scanner monitoringNo
Light barrier monitoringNo
With core end processing2 x (0.25 ... 1.5 mm²)
Rotation speed monitoringNo
Tactile sensor monitoringNo
Position switch monitoringYes
Protective door monitoringNo
Without core end processing2x (0.25 ... 1.5 mm²)
Air pressure acc. to SN 3120590 ... 106 kPa
Monitoring of floating sensorsYes
EMERGENCY-OFF circuit monitoringNo
Safety-Related delayed switching0
Pressure-sensitive mat monitoringNo
Monitoring of non-floating sensorsNo
Product feature cross-circuit-proofNo
Cascading input (Functional switching)No
Safety-Related instantaneous contact4
Stop category acc. to DIN EN 60204-10
Reference code acc. to DIN EN 61346-2F
Magnetically operated switch monitoringNo
Suitability for interaction press controlYes
For signaling function instantaneous contact0
SIL claim limit (subsystem) acc. to EN 620613
Magnetically operated switch monitoring NC-NCNo
Magnetically operated switch monitoring NC-NONo
Electrical endurance (switching cycles) typical100 000
Mechanical service life (switching cycles) typical10 000 000
Recovery time after opening of the safety circuits typical250 ms
MPN
3TK2835-2AJ20