Ex 61 / ExM 61

  • Ex zone 1 and 21
  • Metal enclosure
  • ExM 61: Snap action, change-over contact with single break
  • Ex 61: Slow action, change-over contact with double break
  • With pre-wired cable, cable length 3 m
  • Actuator can be repositioned in factory by 4 x 90°
  • 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 aluminium die-cast, powder-coated
Cover steel, powder-coated
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 Ex 14, ExM 14
Contact material silver
Switching system slow or snap action; slow action: positive break NC contacts ; positive break depends on the actuator used
Switching elements ExM 61: change-over contact with single break, Form C,
Ex 61: 1 NC/1 NO contact, type Zb
Connection pre-wired cable H05VV-F
Cable cross-section 3 or 4 x 0.75 mm² (incl. conductor ferrules)
Cable length 3 m
Rated impulse withstand voltage Uimp 4 kV
Rated operating isolation voltage Ui 250 V
Conventional thermal current Ithe Ex 61: T6: 6 A; T5: 3 A
ExM 61: 5 A
Rated operating current/voltage Ie/Ue Ex 61:
6 A/250 VAC, 0.25 A/230 VDC, 3 A/24 VDC;
ExM 61:
5 A/250 VAC, 0.16 A/230 VDC
Utilisation category AC-15; DC-13
Short-circuit protection Ex 61: 6 A gG/gN fuse;
ExM 61: 5 A gG/gN fuse
Ambient temperature Ex 61:
T6: –20 °C … +65 °C,
T5: –20 °C … +75 °C, +90 °C with max. 3 A
ExM 61:
–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 4.5 mm
Impact energy max. 7 J
Ex marking Ex 61:
II 2G Ex db IIC T6/T5 Gb,
II 2D Ex tb IIIC
T80 °C/T95 °C Db

ExM 61:
II 2G Ex d IIC T6 Gb,
II 2D Ex tb IIIC T80 °C Db IP65
Approvals Ex 61:
PTB 03 ATEX 1070 X*
IECEx PTB 06.0098X*


ExM 61:
PTB 03 ATEX 1069 X*


*referring to the switch insert

Ordering details

Plunger with collar W, * with safety function

Type   Material no.  
Type    Material no.   
ExM 61 W - 3m 1174118
Type    Material no.   
Ex 61 W 1Ö/1S - 3m  * 1160276
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Roller lever with collar WH, * with safety function

Type   Material no.  
Type    Material no.   
ExM 61 WH - 3m 1047986
Type    Material no.   
Ex 61 WH 1Ö/1S - 3m  * 1047808
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Long roller lever with collar WHL, * with safety function

Type   Material no.  
Type    Material no.   
ExM 61 WHL - 3m 1175509
Type    Material no.   
Ex 61 WHL 1Ö/1S - 3m  * 1160277
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Offset roller lever with collar WHK

Type   Material no.  
Type    Material no.   
ExM 61 WHK - 3m 1174745
Type    Material no.   
Ex 61 WHK 1Ö/1S - 3m 1179157
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Rocking lever D

Type   Material no.  
Type    Material no.   
ExM 61 D - 3m 1053626
Type    Material no.   
Ex 61 D 1Ö/1S - 3m 1172825
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 DL

Type   Material no.  
Type    Material no.   
ExM 61 DL - 3m 1054144
Type    Material no.   
Ex 61 DL 1Ö/1S - 3m 1053442
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 DS

Type   Material no.  
Type    Material no.   
ExM 61 DS - 3m 1167414
Type    Material no.   
Ex 61 DS 1Ö/1S - 3m 1175016
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Long spring rod TL

Type   Material no.  
Type    Material no.   
ExM 61 TL - 3m 1167449
Type    Material no.   
Ex 61 TL 1Ö/1S - 3m 1189069
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 steel tip TF

Type   Material no.  
Type    Material no.   
ExM 61 TF - 3m 1047990
Type    Material no.   
Ex 61 TF 1Ö/1S - 3m 1183085
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Long spring rod with steel tip TFL

Type   Material no.  
Type    Material no.   
ExM 61 TFL - 3m 1047992
Type    Material no.   
Ex 61 TFL 1Ö/1S - 3m 1181343
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.   
ExM 61 TK - 3m 1174054
Type    Material no.   
Ex 61 TK 1Ö/1S - 3m 1180172
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.