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
53
3TK2822-.....
3TK2823-.....
Product function
•
automatic start
Yes
No
•
rotation speed monitoring
No
•
laser scanner monitoring
No
•
light grid monitoring
No
•
light barrier monitoring
No
•
magnetic switch monitoring Normally closed contact-
Normally open contact
No
•
magnetic switch monitoring Normally closed contact-
Normally closed contact
No
•
emergency stop function
No
Yes
•
protective door monitoring
Yes
No
•
standstill monitoring
No
•
step mat monitoring
Yes
•
monitored start-up
No
Yes
Acceptability for application
•
safety-related circuits
Yes
•
safety cut-out switch
Yes
•
magnetically operated switches monitoring
No
•
EMERGENCY-OFF circuit monitoring
No
Yes
•
proximity switches monitoring
No
•
opto-electronical protection device monitoring
No
•
position switch monitoring
Yes
•
tactile sensor monitoring
No
•
valve monitoring
No
Utilization category
acc. to VDE0660-200,
DIN EN / IEC 60947-5-1
Rated operational voltage
U
e
[V]
Rated operational current I
e
[A]
if all enabling circuits are loaded
50 °C
60 °C
70 °C
AC-15
230
5
4.5
4
DC-13
24
5
4.5
4
115
0.2
0.2
0.2
230
0.1
0.1
0.1
Continuous current I
th
5
4.5
4
