3TK2826 safety relay
Manual, 08/2007, GWA NEB 926 1579-02 DS 02
61
Circuit diagrams/applications
13
13.1
Block diagrams
3TK2826-*BB40 with undelayed enabling circuits
A1
13
14
24
33 43
34
51
52
A2
T3
Y33
T1
Y12
1
Y22
74
Q4
ON
Y34
64
Q1
24V DC
M
23
44
T2
H1
H2
Q1
Q2
Q3
Q4
H3
..
.
Figure 13-1 Block diagram 3TK2826-*BB40
WARNING
Short circuit protection in accordance with IEC 60 947-5-1
The device must have an upstream fuse, 4 A gL/gG or 6 A quick-response, as short circuit
protection.