Vacuum switches for Ex-applications. Degree of Ex-protection: Ex II 2G Ex d e IIC T6 Gb and Ex II 1/2D Ex ta/tb IIIC T80 oC Da/Db
For monitoring vacuum of non-aggressive liquids and gaseous media.
| Kind of pressure |
vacuum, relative |
| Pressure connection |
internal thread G1/4, external thread G1/2 |
| Electrical connection |
terminal connection M16x1,5 |
| Protection class |
IP65 |
| Housing material |
rugged housing of seawater resistant aluminium die casting GD Al Si 12. |
| Media temp. |
-20 … 60 oC |
| Media temp. limit |
Higher temperatures are possible, provided that the limit is safeguarded by suitable measures (e.g. water tube trap, see Accessories for Pressure Switches / Transmitters) |
| Ambient temperature |
-20 … 60 oC |
| Ambient temp. limit |
at temperatures below 0 oC, ensure that no water condensation can arise in the sensor and in the switching device |
| Switch function/capacity |
SPDT Microswitch 250 Vac; capacity 2 A inductive, 3 A resistive |
| Certificates |
| • |
SIL2 according IEC 61508-2 |
| • |
IBExU12ATEX1040 according to ATEX 2014/34/EU |
| • |
IECEx IBE 14.0077 |
|
| Pressure adjustment range |
Switching differential |
Max. pressure |
Sensing element material |
Type |
| mbar |
mbar |
bar |
|
|
| -15 … 6 |
2 |
1 |
Perbunan + 1.4301 |
EX-VCM4156 |
| -250 … 100 |
25 |
1.5 |
Copper + Brass |
EX-VCM301 |
| -250 … 100 |
45 |
3 |
1.4104 + 1.4571 |
EX-VNM301 |
| -1000 … 100 |
45 |
3 |
Copper + Brass |
EX-VCM101 |
| -900 … 500 |
50 |
3 |
Copper + Brass |
EX-VCM095 |
| -1000 … 100 |
50 |
6 |
1.4104 + 1.4571 |
EX-VNM111 |
Datasheet
