Anti-two-block switch

ZS 73 HES -40°C Niro hard-coated Extreme


  • Pull-wire unit made of stainless steel 1.4404, hard-coated housing, cover made of stainless steel 1.4404, screws A2

  • High degree of protection IP66 / IP67

  • Cold-resistant down to -40 °C

  • 2 or 3 contacts

  • Watertight collar W for protection against penetration of dirt

  • Tractive force 130 N (counterweight of min. 13 kg to pretension anti-two-block switch)

  • For limiting the hoist height

Technical data

Applied standards
EN 60947-5-1
Enclosure
aluminium die-cast, hard-coated, powder-coated, anthracite grey, similar to RAL 7016
Cover
stainless steel 1.4404, powder-coated, signal yellow, similar to RAL 1003
Degree of protection
IP66/IP67 (IEC/EN 60529)
B10d (10 % load)
200 000
TM
max. 20 years
Contact material
silver, gold-plated
Switching system
snap action, positive break NC contacts similar to GS-ET-15, 5.13.2
Switching elements
1 NC/1 NO, 2 NC or 2 NC/1 NO contact
Connection
screw connection terminals
Cable cross-section
max. 2.5 mm² (incl. conductor ferrules)
Cable entry
1 x M16 x 1.5
Rated impulse withstand voltage Uimp
6 kV
Rated insulation voltage Ui
2 contacts: 400 V, 3 contacts: 230 V
Conventional thermal current Ithe
2 contacts: 6 A, 3 contacts: 1.5 A
Utilisation category
AC-15
Rated operating current/voltage Ie/Ue
2 contacts: 6 A/400 VAC, 3 contacts: 1.5 A/230 VAC
Short-circuit protection
2 contacts: 6 A gG/gN fuse, 3 contacts: 1.5 A gG/gN fuse
Ambient temperature
–40 °C … +70 °C
Mechanical life
> 100 000 operations

Downloads

Mounting and wiring instructions – ZS 73 HES Extreme

German, English, French, Italian, Portuguese

PDF 3 MB 13.11.2025
Please go to the relevant product pages for additional downloads.

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