Ex T 356

  • Ex zone 1 and 21
  • Thermoplastic enclosure with metal cover
  • Mounting and switching details to EN 50041
  • With pre-wired cable
  • Actuator can be repositioned by 4 x 90°
  • Rocking lever can be repositioned by 10° steps
  • Special version only for dust Ex zone 22 available
  • Attention: Please state required international approvals with your order!

Technical data

Applied standards EN 60947-5-1, EN 60079-0, EN 60079-1, EN 60079-31, EN ISO 13849-1, EN ISO 14119
Enclosure thermoplastic, glass-fibre reinforced, impact resistant, self-extinguishing UL 94 V-0
Cover steel, enamel finish
Switch type type 1
Coding level no coding
Degree of protection IP 65 to IEC/EN 60529
B10d (10 % load) 2 million
TM max. 20 years
Switch insert 1 x Ex 13
Contact material silver
Switching system slow action, positive break NC contacts ; positive break depends on the actuator used
Switching elements 1 NC/1 NO contact, type Zb
Connection pre-wired cable H05VV-F
Cable cross-section 4 x 0.75 mm² (incl. conductor ferrules)
Cable length 2 or 5 m
Rated impulse withstand voltage Uimp 4 kV
Rated operating isolation voltage Ui 250 V
Conventional thermal current Ithe T6: 6 A, T5: 3 A
Rated operating current/voltage Ie/Ue 6 A/250 VAC; 0.25 A/230 VDC; 3 A/24 VDC; 3 A/24 VDC
Utilisation category AC-15; DC-13
Short-circuit protection 6 A gG/gN fuse
Ambient temperature T6: –20 °C … +65 °C,
T5: –20 °C … +75 °C, +90 °C with max. 3 A
Mechanical life > 1 million operations
Operation cycles max. 1800/h
Repeat accuracy of switching points ± 0.1 mm
Contact opening max. 2 x 4.5 mm
Impact energy max. 7 J
Ex marking II 2G Ex db IIC T6/T5 Gb,
II 2D Ex tb IIIC
T80 °C/T95 °C Db
IECEx Ex db IIC T6/T5 Gb,
Ex tb IIIC T80 °C/T95 °C Db
Approvals PTB 03 ATEX 1068 X *
IECEx PTB 06.0053X *
* referring to the switch insert

Ordering details

Plunger S, * with safety function

Type   Material no.  
Type    Material no.   
Ex T 356 S 1Ö/1S-2m  * 1172992
Type    Material no.   
Ex T 356 S 1Ö/1S-5m  * 1173212
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Roller plunger R, * with safety function

Type   Material no.  
Type    Material no.   
Ex T 356 R 1Ö/1S-2m  * 1173048
Type    Material no.   
Ex T 356 R 1Ö/1S-5m  * 1174034
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Rocking lever 4VH, * with safety function

Type   Material no.  
Type    Material no.   
Ex T 356 4VH 1Ö/1S-2m  * 1173059
Type    Material no.   
Ex T 356 4VH 1Ö/1S-5m  * 1173060
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Adjustable rocking lever 4V7H-2138, * with safety function

Type   Material no.  
Type    Material no.   
Ex T 356 4V7H 1Ö/1S-2138-2m  * 1179068
Type    Material no.   
Ex T 356 4V7H 1Ö/1S-2138-5m  * 1179361
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Adjustable rocking lever 4V7H

Type   Material no.  
Type    Material no.   
Ex T 356 4V7H 1Ö/1S-2m 1173062
Type    Material no.   
Ex T 356 4V7H 1Ö/1S-5m 1173695
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Rod lever 4V10H

Type   Material no.  
Type    Material no.   
Ex T 356 4V10H 1Ö/1S-2m 1175269
Type    Material no.   
Ex T 356 4V10H 1Ö/1S-5m 1175865
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.