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
DIN EN / IEC 60947-5-1
AC-15
DC-13
Continuous current I
th
92
Rated operational voltage
U
[V]
e
230
24
115
230
3TK2828-.A...
Yes
No
No
No
No
No
No
No
Yes
No
Yes
No
Yes
Yes
No
No
No
No
Yes
No
No
Rated operational current I
if all instantaneous / time-delayed enabling
circuits are loaded
60 °C
5 / 3
5 / 2
0.2 / 0.2
0.1/ 0,1
5 / 5
Manual, 07/2016, NEB926157502000/RS-AB/003
3TK2828-.B...
[A]
e
70 °C
4 / 3
4 / 3
0.2 / 0.2
0.1/ 0.1
4 / 4
3TK28 safety relays