Siemens 3TK28 Manual page 60

Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
Product function
automatic start
•
rotation speed monitoring
•
laser scanner monitoring
•
light grid monitoring
•
light barrier monitoring
•
magnetic switch monitoring Normally closed
•
contact-Normally open contact
magnetic switch monitoring Normally closed
•
contact-Normally closed contact
emergency stop function
•
protective door monitoring
•
standstill monitoring
•
step mat monitoring
•
monitored start-up
•
Acceptability for application
safety-related circuits
•
safety cut-out switch
•
magnetically operated switches monitoring
•
EMERGENCY-OFF circuit monitoring
•
proximity switches monitoring
•
opto-electronical protection device monitoring
•
position switch monitoring
•
tactile sensor monitoring
•
valve monitoring
•
Utilization category
acc. to VDE0660-200,
DIN EN / IEC 60947-5-1
AC-15
DC-13
Continuous current I
th
60
Rated operational voltage
U [V]
e
230
24
115
230
3TK2821-.C... 3TK2824-.B...
Yes
No
No
No
No
No
No
Yes
Yes
No
No
No
Yes
Yes
No
Yes
No
No
Yes
No
No
Rated operational current I
if all enabling circuits are loaded
50 °C 60 °C
5 4.5
5 4.5
0.2 0.2
0.1 0.1
5 4.5
Manual, 07/2016, NEB926157502000/RS-AB/003
3TK2824-.C...
[A]
e
70 °C
4
4
0.2
0.1
4
3TK28 safety relays