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
52A2
T3Y33T1Y12 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.
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