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Pull-wire emergency stop buttons EEx ZS 73 range
1.5.2
Actuating The values quoted relate to the switch being deflection/ mounted at an ambient temperature of 20 °C. force Stretching of the wire due to elongation
and deformation of the wire thimbles has
not been taken into account.
The actuating forces given are only professional guide
values, since the professional spring forces are subject
to tolerances.
Actuating deflections and forces relate to a 5 m long wire.
Pre- Actuating Actuating Recommended Ordering
tensioning deflection S force F [N] cable length [m] suffix
force [N] [cm]
295-390 195-275 120-180 80-100
12 12
12 12
60 41
25 8
30-50 20-30 10-20
<10
-295N -195N -120N -80N
-10 0 10 20 30 40 50 60 70 80 T['C]
Temperature Recommended lengths of wire for pull-wire range manufacturer of emergency stop switches in relation to the
range of ambient temperature.
Contacts/ Switch travel
1 NO 1 NC
BK23—^ BN 11—H
•24BK •12 BU
6_S
.23-24 11-12
6,5 4
4 6,5
EEx ZS 73 1Ò/1S VD EEx ZS 73 1Ò/1S VS
EEx ZS 73 1Ò/1S WVD EEx ZS 73 1Ò/1S WVS
Push button reset Key reset
Push button reset, watertight collar Key reset, watertight collar
Note Ordering suffix for pretenslonlng force must al-
ways be added to part number, see ordering details.
Ordering EEx ZS 73 range pull-wire emergency stop details switch for one-side operation with one NO and
one NC contact, key reset, watertight collar and
295-390 N pretensioning force:
EEx ZS 73 10/1S WVS-295N
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191
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