Ex BF 80

Features/Options

  • Ex zone 1 and 21
  • Polyester resin enclosure
  • PU foam gaskets
  • Different actuating elements like push-buttons, selector- or key switches available
  • Versions with two or three actuating elements available
  • 3 different enclosure sizes
  • Ex radio command devices available
    / Ex radio command devices Ex RF BF 80

Technical data

StandardsEN 60079-0, EN 60079-1,
EN 60079-7, EN 60079-18,
EN 60079-31; EN ISO 13849-1
Enclosureglass-fibre reinforced polyester resin
Degree of protectionIP 66 to IEC/EN 60529
Switching systemslow action, positive break NC contacts
ConnectionScrew connection terminals, max. 6 mm² (incl. conductor ferrules), serial/connection clamps max. 4 mm²
Ambient temperatureT6: –40 °C … +40 °C,
T5: –40 °C … +55 °C,
–50 °C … +60 °C on request
B10d (10 % Load)6050
TMmax. 20 years
Mechanical life50 000 operations
Temperature classT6 / T5
Impact energymax. 7 J
 
Contact element
Ie/Ue400 V / 4 A
Utilisation categoryAC-15
 
Signalling device LM
Illuminated push-button LDT
Ue12 … 240 V
Power consumptionmax. 1 W
Frequency0 … 60 Hz
 
Ex marking II 2G Ex de IIC T6 Gb
II 2D Ex tb IIIC T80 °C Db IP66
IECEx Ex de IIC T6 Gb
Ex tb IIIC T80 °C Db IP66
ApprovalsPTB 10 ATEX 1018
IECEx PTB 12.0029

Stock types

Ordering details
Type code

Emergency-stop push-button PZTNA

Type   Material no.
Ex BF 80 1 PZTNA 1Ö/1S, Ø 38 mm 1186777
Ex BF 80 1 PZTNA 2Ö/1S, Ø 38 mm 1186778

Emergency-stop push-button PZTNA

Type   Material no.
Ex BF 80 1 PZT55NA 1Ö/1S, Ø 55 mm 1186779

Emergency-stop push-button with key unlocking PZSTNA

Type   Material no.
Ex BF 80 1 PZSTNA 1Ö/1S, Ø 38 mm 1186780

Black mushroom push-button PZDTSW

Type   Material no.
Ex BF 80 1 PZDTSW 1Ö/1S 1186776

Push-button DT

Type   Material no.
Ex BF 80 1 DT 1Ö/1S 1186775

Illuminated push-button LDT

Type   Material no.
Ex BF 80 1 LDT 1Ö/1S 1186784

Double push-button DDT

Type   Material no.
Ex BF 80 1 DDT 1Ö/1S 1186783

Signalling device LM

Type   Material no.
Ex BF 80 1 LM LED 1186785

Selector switch WS

Type   Material no.
Ex BF 80 1 WS 0-I 1Ö/1S 1186786
Ex BF 80 1 WS I-0-II 1S/1S 1186787

Key switch SLS

Type   Material no.
Ex BF 80 1 SLS 0-I 1Ö/1S 1186781
Ex BF 80 1 SLS I-0-II 1S/1S 1186782

Version with 2 push-buttons

Type   Material no.
Ex BF 80 2 DT/DT 1ÖS/1ÖS 1186788
Ex BF 80 2 LM/DT LED/1ÖS 1186789
Ex BF 80 2 LM/DDT LED/1ÖS 1186790