Ex 355

  • Ex zone 1 and 21
  • Metal enclosure
  • Slow action
  • Mounting and switching details to EN 50041
  • Wiring compartment
  • 3 cable entries
  • Actuator can be repositioned by 4 x 90°
  • Rocking lever can be repositioned by 10° steps
  • With gold-plated contacts available on request
  • Attention: Please state required international approvals with your order!

Technical data

Applied standards EN 60947-5-1, EN 60079-0, EN 60079-1, EN 60079-7, EN 60079-31, EN ISO 13849-1, EN ISO 14119
Enclosure zinc die-cast, enamel finish
Switch type type 1
Coding level no 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 ; positive break depends on the actuator used
Switching elements 1 NC/1 NO, 2 NC or 1 NC/1 NO contact with contact overlapping, 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
Ambient temperature T6: –20 °C … +40 °C;
T5: –20 °C … +60 °C
Mechanical life > 1 million operations
Operation cycles max. 1800/h
Repeat accuracy of switching points ± 0.1 mm
Contact opening max. 2 x 3.5 mm
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

Plunger S, * with safety function

Type   Material no.  
Type    Material no.   
Ex 355 S 1Ö/1S  * 1178426
Type    Material no.   
Ex 355 S 2Ö  * 1179217
Type    Material no.   
Ex 355 S 1S/1Ö UE  * on request Produced to order.
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.
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 355 R 1Ö/1S  * 1179159
Type    Material no.   
Ex 355 R 2Ö  * 1179218
Type    Material no.   
Ex 355 R 1S/1Ö UE  * 1280836
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Roller lever 1K, * with safety function

Type   Material no.  
Type    Material no.   
Ex 355 1K 1Ö/1S  * 1178444
Type    Material no.   
Ex 355 1K 2Ö  * 1178641
Type    Material no.   
Ex 355 1K 1S/1Ö UE  * 1188259
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Angled roller lever 3K, * with safety function

Type   Material no.  
Type    Material no.   
Ex 355 3K 1Ö/1S  * 1187048
Type    Material no.   
Ex 355 3K 2Ö  * 1189337
Type    Material no.   
Ex 355 3K 1S/1Ö UE  * 1189521
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 355 4VH 1Ö/1S  * 1179156
Type    Material no.   
Ex 355 4VH 2Ö  * 1189527
Type    Material no.   
Ex 355 4VH 1S/1Ö UE  * 1477218
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Long rocking lever 4V3H, * with safety function

Type   Material no.  
Type    Material no.   
Ex 355 4V3H 1Ö/1S  * 1179072
Type    Material no.   
Ex 355 4V3H 2Ö  * 1179966
Type    Material no.   
Ex 355 4V3H 1S/1Ö UE  * 1317261
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 355 4V7H 1Ö/1S-2138  * 1330278
Type    Material no.   
Ex 355 4V7H 2Ö-2138  * 1290083
Type    Material no.   
Ex 355 4V7H 1S/1Ö UE-2138  * 1185952
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 355 4V7H 1Ö/1S 1178443
Type    Material no.   
Ex 355 4V7H 2Ö 1222698
Type    Material no.   
Ex 355 4V7H 1S/1Ö UE on request Produced to order.
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Forked lever latching 3V4D

Type   Material no.  
Type    Material no.   
Ex 355 3V4D 1Ö/1S 1181679
Type    Material no.   
Ex 355 3V4D 2Ö 1189522
Type    Material no.   
Ex 355 3V4D 1S/1Ö UE on request Produced to order.
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.
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 355 4V10H 1Ö/1S 1178428
Type    Material no.   
Ex 355 4V10H 2Ö 1189998
Type    Material no.   
Ex 355 4V10H 1S/1Ö UE on request Produced to order.
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Spring rod with plastic tip TK

Type   Material no.  
Type    Material no.   
Ex 355 TK 1Ö/1S 1178557
Type    Material no.   
Ex 355 TK 2Ö 1206303
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.