Operating Instructions TZ... Safety Switch
Shown:
TZ.R.. actuating head on the right
(actuating head on the left is a mirror image)
31
20
M20x1,5
Figure 3: Dimension drawing
Closed
Safety guard:
Locked
Switching position:
SK
ÜK
SK
SK 2131H
41
42
41
ÜK 3131H
33
34
33
21
22
21
11
12
13
SK 2121H
41
42
41
ÜK 2121H
33
34
33
21
22
21
11
12
11
SK 528H
21
22
21
ÜK 528H
13
14
13
SK 538H
ÜK 538H
21
22
21
13
13
14
Figure 4: Switching elements and switching functions
b
+4
52
22
0
a
23
12,5
36
25
GN
RD
18
35
31
100
110
40
M8
∅ 5,5
Closed
Not locked
SK
ÜK
ÜK
SK
ÜK
42
41
42
41
34
33
34
33
22
21
22
21
14
11
12
13
42
41
42
41
34
33
34
33
22
21
22
21
12
11
12
11
22
21
22
21
14
13
14
13
22
21
22
21
14
13
13
14
0,3
a Travel without operation:
actuator is in the guide slot, however
a function is not triggered.
b Switching operation completed:
actuator must be inserted to this point
to ensure reliable switching. The
actuator must be withdrawn at least
to point a for switching off.
M=1,2Nm (4x)
M=1,2Nm (4x)
0,3
Open
Not locked
SK
ÜK
SK
ÜK
42
41
42
41
34
33
34
33
22
21
22
21
14
11
12
13
42
41
42
41
34
33
34
33
22
21
22
21
12
11
12
11
22
21
22
21
14
13
14
13
22
21
22
21
14
13
13
14
42
34
22
14
42
34
22
12
22
14
22
14