Ex GFS 3

Features/Options

  • Ex zone 1 and 21
  • 3-pedal type
  • Metal enclosure
  • With protective shield
  • Max. 2 contacts per pedal
  • Low pedal height
  • With pre-wired cable, cable length 3 m
  • Available on request with special finish in RAL colour tones
  • Special version only for dust Ex zone 22 available
  • N.B.: Please state required approvals for Russia, Brazil and North America with your order!

Technical data

StandardsEN 60947-5-1; EN 60079-0,
EN 60079-1, EN 60079-31;
EN ISO 13849-1
Enclosurealuminium die-cast, powder-coated
Pedalglass-fibre reinforced, shock-proof thermoplastic (PA 66), self-extinguishing UL 94-V0
Protective shieldaluminium die-cast, powder-coated
Connectioncable H05VV-F, 3 or 4 x 0.75 mm² (incl. conductor ferrules)
Cable length3 m
Contact materialsilver
Degree of protectionIP 65 to IEC/EN 60529
Switching systemEx GFS: slow action, positive break NC contacts
Ex GFSM: snap action
Switching elementsEx GFS: 1 NC/1 NO contact, type Zb
Ex GFSM: change-over contact with single break C or 1 NC/1 NO contact, type Za
Switch insertEx GFS: Ex 14
Ex GFSM: type C: ExM 14, type Za: ExM 14 1Ö/1S
B10d (10 % Load)Ex GFS 3: 2 million
TMEx GFS 3: max. 20 years
Utilisation categoryAC-15; DC-13
Ie/UeEx GFS 3:
6 A/250 VAC; 0.25 A/230 VDC
Ex GFSM 3:
5 A/250 VAC; 0.16 A/230 VDC
Ex GFSM 3 1ÖS/1ÖS/1ÖS:
5 A/250 VAC; 0.2 A/230 VDC
Max. fuse ratingEx GFS 3: 6 A gG/gN fuse
Ex GFSM 3: 5 A gG/gN fuse
Ambient temperatureT6: –20 °C … +60 °C,
T5: -20 °C … +75 °C
Mechanical life> 1 million operations
Impact energymax. 7 J
Ex marking II 2G Ex d IIC T6/T5 Gb,
II 2D Ex tb IIIC
T80 °C/T95 °C Db IP65
IECEx Ex d IIC T6/T5 Gb,
Ex tb IIIC T80 °C/T95 °C Db IP65
ApprovalsEx GFS 3:
PTB 11 ATEX 1002 X
IECEx PTB 11.0090X


Ex GFSM 3:
PTB 11 ATEX 1002 X


Ex GFSM 3 1ÖS/1ÖS/1ÖS:
PTB 11 ATEX 1002 X
IECEx PTB 11.0090X
Ordering details
Type code

Slow action

1 NC/1 NO contact per pedal

Type   Material no.
Ex GFS 3 1ÖS/1ÖS/1ÖS - 3m 1048957

Snap action

1 change-over contact per pedal

Type   Material no.
Ex GFSM 3 - 3m 1209486

Snap action

1 NC/1 NO contact per pedal

Type   Material no.
Ex GFSM 3 1ÖS/1ÖS/1ÖS - 3m on request Produced to order.