Siemens 3TK28 - Page 27

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