Ex safety switch with separate actuator
Ex 97 AZ-3G/D
Ex zone 2 and 22
Thermoplastic enclosure, double insulated X
High degree of protection IP66 / IP67
Wiring compartment
Mounting details to EN 50047
1 Ex"e" cable gland M20x1.5 included in delivery
The actuator is not included in the delivery of the switches
Technical data
General technical data
Applied standards
EN 60947-5-1, EN IEC 60079-0, EN 60079-1, EN IEC 60079-7, EN 60079-31, EN ISO 13849-1, EN ISO 14119
Enclosure
thermoplastic, glass-fibre reinforced, shockproof, self-extinguishing UL 94 V-0
Cover
thermoplastic, glass-fibre reinforced, shockproof, self-extinguishing UL 94 V-0
Sealing
silicone
Switch type
type 2
Coding level
low coding
Degree of protection
IP66 / IP67 (EN 60079-0 + IEC/EN 60529)
B10d (10 % load)
2 million
TM
max. 20 years
Contact material
silver
Switching system
slow action, positive break NC contacts A
Switching elements
1 NC/1 NO contact or 2 NC contacts, type Zb
Connection
screw connection terminals
Cable cross-section
min. 0.75 mm² (AWG 18), max. 1.5 mm² (AWG 16), incl. conductor ferrules
Cable entry
M20 x 1.5; screwing depth max. 9 mm; use only Ex approved and certified cable glands with min. degree of protection IP66/IP67 and suitable for the specified ambient temperature range
Rated impulse withstand voltage Uimp
4 kV
Rated insulation voltage Ui
250 V
Rated operating current/voltage Ie/Ue
max. 3 A or 6 A / max. 250 V
Utilisation category
AC-15
Mechanical life
> 1 million operations
Impact energy
max. 4 J
Temperature class
T6
Ambient temperature
–20 °C … +45 °C max. 6 A,
–20 °C … +60 °C max. 3 A
Short-circuit protection
3 A / 6 A gG/gN fuse
Ex marking
L II 3G Ex dc ec IIC T6 Gc X,
L II 3D Ex tc IIIC T80 °C Dc X
