Ex 61 Z / ExM 61 Z

  • Ex zone 1 and 21
  • Metal enclosure
  • Wall mounting
  • Slow or snap action: 2 contacts
  • Various spring force variants (actuating forces) available on request
  • Pull-wire function
  • Watertight collar W for protection against penetration of dirt available
  • N.B.: Please state required international approvals with your order!

Technical data

Applied standardsEN 60947-5-1; EN 60079-0,
EN 60079-1, EN 60079-31;
EN ISO 13849-1
Enclosurealuminium die-cast, powder-coated
Coversteel, powder-coated
Switch insertEx 14, ExM 14
Degree of protectionIP 65 to IEC/EN 60529
Contact materialsilver
Switching systemslow or snap action
Switching elementsExM 61: change-over contact with single break, Form C,
Ex 61: 1 NC/1 NO contact, type Zb
Connectionpre-wired cable H05VV-F
Cable cross-section3 or 4 x 0.75 mm² (incl. conductor ferrules)
Cable length3 m
B10d (10 % load)Ex 61 Z: 2 million
TMmax. 20 years
Rated impulse withstand voltage Uimp4 kV
Rated operating isolation voltage Ui250 V
Conventional thermal current ItheEx 61: T6: 6 A; T5: 3 A
ExM 61: 5 A
Rated operating current/voltage Ie/UeEx 61:
6 A/250 VAC, 0.25 A/230 VDC;
ExM 61:
5 A/250 VAC, 0.16 A/230 VDC
Utilisation categoryAC-15; DC-13
Max. fuse rating6 A gG/gN fuse
Ambient temperatureEx 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 cyclesmax. 1800/h
Repeat accuracy of switching points± 0.1 mm
Impact energymax. 7 J
Ex markingEx 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
ApprovalsEx 61:
PTB 03 ATEX 1070 X*
IECEx PTB 06.0098X*


ExM 61:
PTB 03 ATEX 1069 X*


*referring to the switch insert

Ordering details

Slow action, 1 NC/1 NO contact

Type   Material no.  
Type    Material no.   
Ex 61 Z 1Ö/1S - 3m 1047827
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Slow action, 1 NC/1 NO contact

Watertight collar

Type   Material no.  
Type    Material no.   
Ex 61 WZ 1Ö/1S - 3m stock type Standard versions, in stock or available at short notice 1047842
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Snap action, 1 change-over contact

Type   Material no.  
Type    Material no.   
ExM 61 Z - 3m 1047996
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Snap action, 1 change-over contact

Watertight collar

Type   Material no.  
Type    Material no.   
ExM 61 WZ - 3m 1158694
If you cannot find the version you require, just ask us! Our product portfolio to date has included many customised switchgear variants.

Accessories