Ex safety switch with separate actuator
Ex 355 AZ
Ex zone 1 and 21
Metal enclosure
Mounting details to EN 50041
Wiring compartment
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
zinc die-cast, enamel finish
Actuator
stainless steel 1.4301
Switch type
type 2
Coding level
low coding
Degree of protection
IP67 (IEC/EN 60529)
B10d (10 % load)
2 million
TM
max. 20 years
Switch insert
1 x Ex 95
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
max. 1.5 mm² (incl. conductor ferrules)
Cable entry
3 x M20 x 1.5 (incl. 1 cable gland)
Clamping range
7 … 12 mm
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
Positive break travel
8.3 mm
Ambient temperature
T6: –20 °C … +40 °C;
T5: –20 °C … +60 °C
Mechanical life
> 1 million operations
Impact energy
max. 7 J
Ex marking
L II 2G Ex db e IIC T6/T5 Gb,
L II 2D Ex tb IIIC T80 °C/T95 °C Db
IECEx Ex db e IIC T6/T5 Gb,
Ex tb IIIC T80 °C/T95 °C Db
Approvals
BVS 04 ATEX E 126
IECEx BVS 07.0013
Downloads
Variants / Options
The following variants / options are available on request:
Actuator head can be repositioned in factory by 4 x 90°
Special version only for dust Ex zone 22
