Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
3TK28 safety relays
Manual, 07/2016, NEB926157502000/RS-AB/003
27
3TK2810-0G...
3TK2810-0B...
Number of outputs as contact-affected switching
element as NO contact safety-related
•
as contact-affected switching element as NC
contact for reporting function instantaneous
switching
2
•
as contact-affected switching element as NO
contact safety-related instantaneous switching
4
•
as contact-affected switching element as NO
contact safety-related delayed switching
0
•
as contact-less semiconductor switching
element
–
for reporting function
–
non-delayed
2
–
delayed switching
0
–
safety-related
–
non-delayed
0
–
delayed switching
0
Stop category according to DIN EN 60204-1
0
Design of the input
•
cascading-input/functional switching
No
•
feedback input
Yes
•
start input
No
Design of the electrical connection jumper
socket
Yes
Switching capacity current
•
at AC-15 at 24 V
A
—
•
of the NO contacts of the relay outputs
–
at AC-15 at 230 V
A
3
–
at DC-13 at 24 V
A
2
•
of the NC contacts of the relay outputs at
AC-15
–
at 115 V
A
2
–
at 230 V
A
2
Thermal current of the contact-affected switching
element maximum
A
5
Electrical operating cycles as operating time
typical
200 000
Mechanical operating cycles as operating time
typical
50 000 000
