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Danfoss Pressure Switches

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Danfoss CAS Pressure controlled switches

Danfoss CAS units are pressure-controlled switches.
The position of the contacts depends on the pressure in the inlet connection and the set value.
CAS pressure switch
• Pressure ranges: 0 to 60 bar
• Low differential (fixed) micro switch
• Enclosure IP67. Sturdy and sea water resistant
• Robust and compact construction
• Resistance to shock and vibrations
• Diaphragm version applications with: Pulsations/pressure peaks and seawater as media
• Also available as differential pressure switch
• Available with all relevant land and marine approvals

The CAS series covers most outdoor as well as indoor application requirements.
CAS pressure controls are suitable for use in alarm and regulation systems in factories, diesel plant, compressors, power stations and on board ship.

Standard pressure switches
Setting          Mechanical           Permissible               Max. Test       Min. Burst      Code no.         Type
Range  bar    differential         operating press.          pressure       pressure
0-3.5 bar         0.1 bar                      10 bar                      10 bar              40 bar     060-315066     CAS133
0-10 bar          0.2 bar                      22 bar                      22 bar              40 bar     060-315166     CAS136
6-18 bar          0.3 bar                      27 bar                      27 bar              72 bar     060-315266     CAS137
10-35 bar        0.6 bar                      53 bar                      53 bar           100 bar     060-315366     CAS139
Pressure controls for high pressure and strongly pulsating media
1-10 bar          0.2-0.6 bar             120 bar                    180 bar            240 bar     060-316066     CAS143
4-40 bar          0.8-2.4 bar             120 bar                    180 bar            240 bar     060-316166     CAS145
6-60 bar           1-3 bar                  120 bar                    240 bar            240 bar     060-316266     CAS147
Differential pressure switch type CAS
0.2-2.5 bar       0.1 bar                   0-8 bar                      22 bar               42 bar     060-313066     CAS155

Pressure connections:
CAS133, CAS136, CAS137, CAS139, CAS143, CAS145, CAS147 all G1/4 bsp
CAS155  2 x G1/4 bsp

Range setting
The pressure range within which the unit will give a signal (contact changeover).
The difference between make pressure and break pressure
Permissible burst pressure
The highest permanent or recurring pressure the unit can be loaded with.
Max. Test pressure
The highest pressure the unit may be subjected to when, for example, testing the system for leakage. Therefore, this pressure must not occur as a recurring system pressure.
Min. Burst pressure
The pressure which the pressure-sensitive element will withstand without leaking.

ABS-American Bureau of Shipping  Pressure switch - Differential, CAS 155;CAS 1055     
ABS-American Bureau of Shipping  Pressure switch - Differential, CAS 155;CAS 1055    
BV-Bureau Veritas  Pressure switch - Differential, CAS 155;CAS 1055     
BV-Bureau Veritas  Pressure switch - Differential, CAS 155;CAS 1055   
Danfoss-foss - EU Declaration  Thermostat, CAS     
Danfoss-foss - EU Declaration  Thermostat, CAS    
GL-Germanischer Lloyd  Pressure switch - Differential, CAS 155;CAS 1055     
LR-Lloyds Register of Shipping  Pressure switch - Differential, CAS 1055   
LR-Lloyds Register of Shipping  Thermostat, CAS 1078;CAS 1079;CAS 1080;CAS 1081   
LR-Lloyds Register of Shipping  Pressure switch - Differential, CAS 1055     
LR-Lloyds Register of Shipping  Thermostat, CAS 178;CAS 179;CAS 180;CAS 181    
NKK-Nippon Kaiji Kyokai  Pressure switch - Differential, CAS 155;CAS 1055     
NKK-Nippon Kaiji Kyokai  Pressure switch - Differential, CAS 155;CAS 1055    
RINA-A - Registro Italiano Navale  Pressure switch - Differential, CAS 155;CAS 1055     
RINA-A - Registro Italiano Navale  Pressure switch - Differential, CAS 155;CAS 1055

Click to View Danfoss CAS Pressure switches technical


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