Ex emergency pull-wire switch
Ex ZS 75 S-3D
Ex zone 22
Metal enclosure
4 contacts
Wire length up to 2 x 100 m
Release by push button (VD)
Wire pull and breakage detection
Notes
1 cable gland M20x1.5 (clamping range 7 … 13 mm) and 1 locking screw M20x1.5 included in delivery.
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Technical data
General technical data
- Applied standards
- EN 60947-5-1, EN 60947-5-5, EN IEC 60079-0, EN 60079-31, EN ISO 13850, EN ISO 13849-1
- Enclosure
- aluminium die-cast, powder-coated
- Cover
- aluminium die-cast, powder-coated
- Degree of protection
- IP67 (IEC/EN 60529)
- B10d (10 % load)
- 200 000
- TM
- max. 20 years
- Contact material
- silver
- Switching system
- slow action, positive break NC contacts A
- Switching elements
- 2 NC/2 NO contacts, type Zb
- Connection
- 2 x 4 pole terminal block
- Cable cross-section
- max. 1.5 mm²
- Rated impulse withstand voltage Uimp
- 4 kV
- Rated insulation voltage Ui
- 250 V
- Conventional thermal current Ithe
- 6 A
- Rated operating current/voltage Ie/Ue
- 6 A/250 VAC; 0.25 A/230 VDC
- Utilisation category
- AC-15; DC-13
- Short-circuit protection
- 6 A gG/gN fuse
- Ambient temperature
- –20 °C … +65 °C
- Mechanical life
- > 100 000 operations
- Max. wire length
- 2 x 100 m
- Note
- At 4 m distance intermediate wire supports are required. Two compensation springs type ZS 73/75 S must be installed, see accessories.
- Impact energy
- max. 7 J
- Ex marking
- L II 3D Ex tc IIIC T80°C Dc
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