Technical Data 3Tk2821 / 3Tk2824 - Siemens 3TK28 Manual

Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
3.6.4.7

Technical data 3TK2821 / 3TK2824

EMC emitted interference
Item designation
according to DIN 40719 extendable after
•
IEC 204-2 according to IEC 750
according to DIN EN 61346-2
•
Number of sensor inputs 1-channel or 2-channel
Design of the cascading
Type of the safety-related wiring of the inputs
Product feature transverse contact-secure
Safety Integrity Level (SIL) according to IEC 61508
SIL claim limit (for a subsystem) according to
EN 62061
Safety integrity level (SIL) for delayed release
circuit according to IEC 61508
Performance Level (PL)
according to ISO 13849-1
•
for delayed release circuit according to ISO
•
13849-1
Category
according to EN 954-1
•
according to ISO 13849-1
•
Safety device type according to IEC 61508-2
Probability of dangerous failure per hour (PFHD)
with high demand rate according to EN 62061
T1 value for proof test interval or service life
according to IEC 61508
Number of outputs as contact-affected switching
element as NO contact safety-related
as NC contact for reporting function
•
instantaneous switching
as NO contact safety-related instantaneous
•
switching
as NO contact safety-related delayed switching
•
Stop category according to DIN EN 60204-1
Design of the input
cascading-input/functional switching
•
feedback input
•
start input
•
58
3TK2821-.C... 3TK2824-.B...
EN 60947-5-1
KT
F
1
none
single-channel or single-channel and two-channel
No
SIL3
1
—
e
—
3
3 2
Type A
0.0000000011 0.00000000087
1/h
20
a
1 0
3 2
0
0
No
Yes
Yes
Manual, 07/2016, NEB926157502000/RS-AB/003
3TK2824-.C...
3TK28 safety relays