Description of the individual safety relays
3.8 3TK28 safety relays with contactor relay enabling circuits
3TK28 safety relays
148
Manual, 07/2016, NEB926157502000/RS-AB/003
3TK2850-.A...
3TK2850-.B...
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 6
–
at DC-13 at 24 V
A 10
•
of the NC contacts of the relay outputs at AC-15
–
at 115 V
A 6
–
at 230 V
A 6
Thermal current of the contact-affected switching element
maximum
A —
Electrical operating cycles as operating time typical
—
Mechanical operating cycles as operating time typical
30 000 000
Design of the fuse link for short-circuit protection of the
NO contacts of the relay outputs required
gL/gG: 10 A
Type of voltage of the controlled supply voltage
AC
DC
Control supply voltage frequency 1 rated value
Hz 50
—
Control supply voltage frequency 2 rated value
Hz 60
—
Control supply voltage 1 for DC final rated value
•
for DC rated value
V —
24
Operating range factor control supply voltage rated value
of the magnet coil
•
at 50 Hz
–
for AC
0.9
—
1.15
—
•
at 60 Hz
–
for AC
0.9
—
1.15
—
•
for DC
—
0.85
—
1.1
