Description of the individual safety relays
3.8 3TK28 safety relays with contactor relay enabling circuits
3TK28 safety relays
Manual, 07/2016, NEB926157502000/RS-AB/003
139
3.8.1.7
Technical specifications 3TK2805/ 3TK2806
Ambient temperature
•
during storage
•
during operation
°C
-55 ... +80
-25 ... +55
HFT
1
Classification
Type A
Rated control supply voltage
24 V AC/DC; 110 V AC; 230 V AC
Rated insulation voltage
•
for control circuit
V
U
i
= 400
U
i
= 250
Rated impulse withstand voltage
•
for control circuit
kV
U
imp
= 4
U
imp
= 1.5
Short-circuit protection
Fuse-links LV HBC, NEOZED, and DIAZED
No-weld fuse protection at
•
for enabling circuit
•
and signaling circuit
IK ≥ 1 kA
Operational class gL(gG) 6 A / fast 10 A
Operational class gL(gG) 6 A / fast 6 A
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
55 °C
AC-1 / AC-12
6
6
AC-15
24
4
4
230
4
3
400
3
3
DC-13
24
6
6
230
0,5
0,5
Rated power
AC-3
230
0.55 kW
0.55 kW
400
1.1 kW
1.1 kW
Continuous current I
th
Breaking capacity at
cosφ = 0.7 ... 1
ohmic
230 V AC
24 V DC
10
10
Σ max 30
8
8
Σ max 24
In case of fault, outputs 13/14, 23/24, 33/34, 43/44, and 53/54 switch off. Signaling contact
65/66 switches on.
You can obtain further technical data of the 3TK2805/06 safety relays on request from:
Technical Assistance (
