Siemens 3TK28 - Structure 3 TK2834; Terminal Assignment

Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
3TK28 safety relays
104 Manual, 07/2016, NEB926157502000/RS-AB/003
3.6.9.3
Structure 3TK2834
Front view
No.
Meaning
①
Display LEDs
②
Removable terminal blocks
③
Labels
3.6.9.4
Terminal assignment
Terminal
Description
A1
L/+
A2
N/-
13; 14
Enabling circuit 1, (NO)
23; 24
Enabling circuit 2, (NO)
31; 32
Signaling circuit 1, (NC)
41; 42
Signaling circuit 2, (NC)
Y11, Y12
Feedback circuit
Y21; Y22; Y23
Button S1
Y31; Y32; Y33
Button S2