Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
3TK28 safety relays
90
Manual, 07/2016, NEB926157502000/RS-AB/003
Technical data 3TK2828
3TK2828-.A...
3TK2828-.B...
EMC emitted interference
EN 60947-5-1
Item designation
•
according to DIN 40719 extendable after IEC 204-2
according to IEC 750
KT
•
according to DIN EN 61346-2
F
Number of sensor inputs 1-channel or 2-channel
1
Design of the cascading
none
Type of the safety-related wiring of the inputs
single-channel and two-channel
Product feature transverse contact-secure
Yes
Safety Integrity Level (SIL) according to IEC 61508
SIL3
SIL claim limit (for a subsystem) according to EN 62061
3
Safety integrity level (SIL) for delayed release circuit
according to IEC 61508
SIL2
Performance level (PL) according to ISO 13849-1
e
Performance Level (PL) for delayed release circuit according
to ISO 13849-1
d
Category
•
according to EN 954-1
4
•
according to ISO 13849-1
4
Safety device type according to IEC 61508-2
Type A
Probability of dangerous failure per hour (PFHD) with high
demand rate according to EN 62061
1/h 0.0000000027
T1 value for proof test interval or service life according to
IEC 61508
a 20
Number of outputs as contact-affected switching element as
NO contact safety-related
•
as NC contact for reporting function instantaneous
switching
1
•
as NO contact safety-related instantaneous switching
2
•
as NO contact safety-related delayed switching
2
Stop category according to DIN EN 60204-1
0 + 1
Design of the input
•
cascading-input/functional switching
No
•
feedback input
Yes
•
start input
Yes
Содержание 3TK28
Страница 188: ...Mounting 4 4 Disassembling the device 3TK28 safety relays 188 Manual 07 2016 NEB926157502000 RS AB 003 ...
Страница 204: ...Dimension drawings 6 1 Dimension drawings 3TK28 3TK28 safety relays 204 Manual 07 2016 NEB926157502000 RS AB 003 ...
Страница 206: ...Accessories 3TK28 safety relays 206 Manual 07 2016 NEB926157502000 RS AB 003 ...