Description of the individual safety relays
3.6 3TK28 safety relays with relay enabling circuits
3TK28 safety relays
86 Manual, 07/2016, NEB926157502000/RS-AB/003
State diagrams 3TK2827 / 3TK2828
Figure 3-31 State diagram 3TK2827 (monitored start)
Figure 3-32 State diagram 3TK2828 (Autostart)