Structure Of The 3Tk2810-0; Terminal Assignment - Siemens 3TK28 Manual

3.6.1.3

Structure of the 3TK2810-0

3.6.1.4

Terminal assignment

A1
A2
A3
A4
L1, L2, L3
X1, X2, X3
11, 12
23, 24; 33, 34; 43, 44
51, 52, 54
64
74
3TK28 safety relays
Manual, 07/2016, NEB926157502000/RS-AB/003
Front view
Terminal
L/+ control supply voltage U
N/- control supply voltage U
24 V DC power supply to signaling outputs
Ground for signaling outputs
Signal inputs
Control terminals
NC contact, positive-action, enabling circuit
NO contact, positive-action, enabling circuit
Signaling output, changeover contact
Signaling output "enable"
Signaling output "fault"
Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
No. Meaning
①
Display LEDs
② Removable terminal blocks
③
Time setting
④
Labels
Description
s
s
23