Ex 355 AZ

  • Ex zone 1 and 21
  • Metal enclosure
  • Mounting details to EN 50041
  • Wiring compartment
  • Actuator head 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 standards EN 60947-5-1, EN 60079-0, EN 60079-1, EN 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 IP 67 to 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
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
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 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
Approvals BVS 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

Slow action, 2 NC contacts

Type   Material no.  
Type    Material no.   
Ex 355 AZ 2Ö 1180261

Actuators

Straight actuators

Type   Material no.  
Type    Material no.   
Straight actuator AZ 335/355-B1 1170536
Type    Material no.   
Straight actuator AZ 335/355-B1-2245 with rubber 1170537

Angled actuators

Type   Material no.  
Type    Material no.   
Angled actuator AZ 335/355-B5 1170538
Type    Material no.   
Angled actuator AZ 335/355-B5-Flex 1182126

Flexible actuators

Type   Material no.  
Type    Material no.   
Flexible actuator AZ 335/355-B6 1170540
Type   Material no.  
Type    Material no.   
Lockout tag SZ 16/335 1170535
Type   Material no.  
Type    Material no.   
Slot sealing plug AZ 355 1172965