Emergency pull-wire switch
ZS 73 S
Metal enclosure
2 or 3 contacts
Wire length up to 2 x 100 m
Release by push button (VD) or key (VS) possible
Wire pull and breakage detection
Ex version available
Technical data
General technical data
Applied standards
EN 60947-5-1, EN 60947-5-5, EN ISO 13850, EN ISO 13849-1
Enclosure
aluminium die-cast, enamel finish
Cover
thermoplastic, glass-fibre reinforced, shockproof, self-extinguishing UL 94 V-0
Degree of protection
ZS 73 S VD: IP65; ZS 73 S VS: IP54 (IEC/EN 60529)
B10d (10 % load)
100 000
TM
max. 20 years
Contact material
silver
Switching elements
1 NC/1 NO, 2 NC or 2 NC/1 NO, type Zb
Switching system
snap action, positive break NC contacts A
Connection
screw connection terminals
Cable cross-section
min. 0.5 mm², max. 2.5 mm² (incl. conductor ferrules)
Stripping length
6 mm
Cable entry
2 x M20 x 1.5
Rated impulse withstand voltage Uimp
2 contacts: 6 kV, 3 contacts: 1 kV
Rated insulation voltage Ui
2 contacts: 400 V, 3 contacts: 250 V
Conventional thermal current Ithe
2 contacts: 6 A, 3 contacts: 2 A
Utilisation category
AC-15
Rated operating current/voltage Ie/Ue
2 contacts: 6 A/400 VAC, 3 contacts: 2 A/250 VAC
Short-circuit protection
2 contacts: 6 A gG/gN fuse, 3 contacts: 2 A gG/gN fuse
Ambient temperature
–25 °C … +70 °C
Mechanical life
> 100 000 operations
Indicator lamp
as option
Max. wire length
2 x 100 m
Approvals
ß d a
