Pressure switches with constant set point - 901 series
  • Pressure switches with constant set point - 901 series

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Manufacturer: Beck

Pressure switches with constant set point - 901 series

Pressure switch
Pressure switch 901 with factory-set pressure setting
 Electrical data
• Ambient temperature from: -20...85°C
• Temperature of media: 85°C or 130°C depending on
material of pressure connection and diaphragm.
• AgNi-contacts: 6A(1,5)/250VAC
  2A/24VDC
• Gold-plated contacts: 1 OOmA / 24VDC
  30mA / 24VDC
• AgNi-contacts: up to 10 A/250 VAC can be supplied upon
request.
• Diaphragm material Depending on media NBR, Silicone, FKM (Viton®), EPDM.
•Electrical connection: 6,3x0,8mm DIN 46244
• Life 10 x 106

 
Overpressure range
Type

Factory-set trip pressure

Standard switching differentialToleranceMaximum positive working pressureMaximum negative working pressure
fromup tolower scale endupper scale range

901.1x

5
200
200 mbar
1000 mbar
2,5 mbar 50 mbar 50 mba 150 mbar 10%
10%
0,5 / 4 bar
1 / 4 bar
- / -1 bar
- / -1 bar

901.41

500 3000 mbar 200 mbar 600 mbar 10% 7 bar -1 bar

901.51

1,0 ba 12 bar 0,2-0,5 bar 1,0-2,0 bar 10% 25 bar -1 bar
Vacuum range

901.2x

-5 -200 -200 mbar
-900 mbar
2,5 mba
50 mbar
50 mbar 10%
10%
0,5 / 4 bar
1 / 4 bar
-1 bar
-1 bar
Differential pressure range

901.30

5 mbar 50 mbar 2,5 mbar 25 mbar 10% 100 mbar -100 mbar

Arrangement of contacts


TypeTube connectionThreaded connection
5,0 mm
FS
6,5 mm
FS
10,0 mm
FS
M10x1G1/8M10x1G1/8G1/4G1/2

901.1x

PA PA
PPS
PA
PPS
PA
PVDF
PA
PVDF
CuZn40 CuZn40 CuZn40
PVDF
CuZn40

901.2x

PA PA
PPS
PA
PPS
PA
PVDF
PA
PVDF
CuZn40 CuZn40 CuZn40
PVDF
 

901.30

  PA              

901.41

          CuZn40 CuZn40 CuZn40
PVDF
CuZn40

901.51

          CuZn40 CuZn40 CuZn40
PVDF
CuZn40

   Pressure connection
PA = polyamide, PVDF = polyvinyldifluoride, PPS = polyphenylensulfide, CuZn40 = brass, V2A = stainless steel

For temperature above 85° C metal or PPS pressure connection is required. Upon request pressure connections of other sizes, other plastics or brass nickel-plated are available
Dimensions [mm]
Protection caps - dimensions [mm]
901.10/20
901.30
6321 IP 10
901.11/21/41
901.51
6329 IP 44
Mounting brackets - Dimensions [mm]

6403 / 6464 / 6405
6371 IP 54 / 6372 IP65
Dimensions: 6374 IP 54 / 6375 IP 65

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Pressure switch
Pressure switch 901 with factory-set pressure setting
 Electrical data
• Ambient temperature from: -20...85°C
• Temperature of media: 85°C or 130°C depending on
material of pressure connection and diaphragm.
• AgNi-contacts: 6A(1,5)/250VAC
  2A/24VDC
• Gold-plated contacts: 1 OOmA / 24VDC
  30mA / 24VDC
• AgNi-contacts: up to 10 A/250 VAC can be supplied upon
request.
• Diaphragm material Depending on media NBR, Silicone, FKM (Viton®), EPDM.
•Electrical connection: 6,3x0,8mm DIN 46244
• Life 10 x 106

 
Overpressure range
Type

Factory-set trip pressure

Standard switching differentialToleranceMaximum positive working pressureMaximum negative working pressure
fromup tolower scale endupper scale range

901.1x

5
200
200 mbar
1000 mbar
2,5 mbar 50 mbar 50 mba 150 mbar 10%
10%
0,5 / 4 bar
1 / 4 bar
- / -1 bar
- / -1 bar

901.41

500 3000 mbar 200 mbar 600 mbar 10% 7 bar -1 bar

901.51

1,0 ba 12 bar 0,2-0,5 bar 1,0-2,0 bar 10% 25 bar -1 bar
Vacuum range

901.2x

-5 -200 -200 mbar
-900 mbar
2,5 mba
50 mbar
50 mbar 10%
10%
0,5 / 4 bar
1 / 4 bar
-1 bar
-1 bar
Differential pressure range

901.30

5 mbar 50 mbar 2,5 mbar 25 mbar 10% 100 mbar -100 mbar

Arrangement of contacts


TypeTube connectionThreaded connection
5,0 mm
FS
6,5 mm
FS
10,0 mm
FS
M10x1G1/8M10x1G1/8G1/4G1/2

901.1x

PA PA
PPS
PA
PPS
PA
PVDF
PA
PVDF
CuZn40 CuZn40 CuZn40
PVDF
CuZn40

901.2x

PA PA
PPS
PA
PPS
PA
PVDF
PA
PVDF
CuZn40 CuZn40 CuZn40
PVDF
 

901.30

  PA              

901.41

          CuZn40 CuZn40 CuZn40
PVDF
CuZn40

901.51

          CuZn40 CuZn40 CuZn40
PVDF
CuZn40

   Pressure connection
PA = polyamide, PVDF = polyvinyldifluoride, PPS = polyphenylensulfide, CuZn40 = brass, V2A = stainless steel

For temperature above 85° C metal or PPS pressure connection is required. Upon request pressure connections of other sizes, other plastics or brass nickel-plated are available
Dimensions [mm]
Protection caps - dimensions [mm]
901.10/20
901.30
6321 IP 10
901.11/21/41
901.51
6329 IP 44
Mounting brackets - Dimensions [mm]

6403 / 6464 / 6405
6371 IP 54 / 6372 IP65
Dimensions: 6374 IP 54 / 6375 IP 65