Ex 355 AZ

  • Ex zone 1 and 21
  • Metal enclosure
  • Mounting details to EN 50041
  • Wiring compartment
  • Actuator can be repositioned in factory by 4 x 90°
  • Special version only for dust Ex zone 22 available
Note
  • The actuator is not included in the delivery of the switches

Technical data

Applied standardsEN 60947-5-1; EN 60079-0,
EN 60079-1, EN 60079-7,
EN 60079-31; EN ISO 13849-1;
EN ISO 14119
Enclosurezinc die-cast, enamel finish
Switch typetype 2
Coding levellow coding
Actuatorstainless steel 1.4301
Switch insert1 x Ex 95
Degree of protectionIP 67 to IEC/EN 60529
Contact materialsilver
Switching systemslow action, positive break NC contacts
Switching elements1 NC/1 NO contact or 2 NC contacts, type Zb
Connectionscrew connection terminals
Cable cross-sectionmax. 1.5 mm² (incl. conductor ferrules)
Cable entry3 x M20 x 1.5 (incl. 1 cable gland)
Clamping range7 … 13 mm
B10d (10 % load)2 million
TMmax. 20 years
Rated impulse withstand voltage Uimp4 kV
Rated operating isolation voltage Ui250 V
Conventional thermal current Ithe6 A
Rated operating current/voltage Ie/Ue6 A/250 VAC; 0.25 A/230 VDC
Utilisation categoryAC-15; DC-13
Max. fuse rating6 A gG/gN fuse
Positive break travel8.3 mm
Ambient temperatureT6: –20 °C … +40 °C;
T5: –20 °C … +60 °C
Mechanical life> 1 million operations
Impact energymax. 7 J
Ex marking II 2G Ex db e IIC T6/T5 Gb,
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
ApprovalsBVS 04 ATEX E 126
IECEx BVS 07.0013

Ordering details

Slow action

1 NC/1 NO contact

Type   Material no.  
Type    Material no.   
Ex 355 AZ 1Ö/1S 1179075
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Slow action

2 NC contacts

Type   Material no.  
Type    Material no.   
Ex 355 AZ 2Ö 1180261
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Actuators

Straight actuators

Type   Material no.  
Type    Material no.   
Straight actuator AZ 335/355-B1 stock type Standard versions, in stock or available at short notice 1170536
Type    Material no.   
Straight actuator AZ 335/355-B1-2245 with rubber stock type Standard versions, in stock or available at short notice 1170537

Angled actuators

Type   Material no.  
Type    Material no.   
Angled actuator AZ 335/355-B5 stock type Standard versions, in stock or available at short notice 1170538
Type    Material no.   
Angled actuator AZ 335/355-B5-Flex stock type Standard versions, in stock or available at short notice 1182126

Flexible actuators

Type   Material no.  
Type    Material no.   
Flexible actuator AZ 335/355-B6 stock type Standard versions, in stock or available at short notice 1170540
Type   Material no.  
Type    Material no.   
Lockout tag SZ 16/335 stock type Standard versions, in stock or available at short notice 1170535
Type   Material no.  
Type    Material no.   
Slot sealing plug AZ 335/355-1990 stock type Standard versions, in stock or available at short notice 1172965