CAS Pressure 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.

• 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.

CAS, Heavy-duty pressure switches
Code no.	Type	Regul. range [bar] Pe	Diff. [bar]	Max. working pressure [bar] Pe	Pressure conn.	Contact function	Encl.
060-315066	CAS133	0,00 - 3,50 bar	0,10 bar	10,0 bar	G 1/4	SPDT	IP67
060-315166	CAS136	0,00 - 10,00 bar	0,20 bar	22,0 bar	G 1/4	SPDT	IP67
060-315266	CAS137	6,00 - 18,00 bar	0,30 bar	27,0 bar	G 1/4	SPDT	IP67
060-315366	CAS139	10,00 - 35,00 bar	0,60 bar	53,0 bar	G 1/4	SPDT	IP67
060-316066	CAS143	1,00 - 10,00 bar	-	120,0 bar	G 1/4	SPDT	IP67
060-316166	CAS145	4,00 - 40,00 bar	-	120,0 bar	G 1/4	SPDT	IP67
060-316266	CAS147	6,00 - 60,00 bar	-	120,0 bar	G 1/4	SPDT	IP67

CAS, Differential Pressure Switches
Code number	Type	Regul. range [bar] Pe	Diff. [bar]	Max. working pressure [bar] Pe	Conn. size	Contact function
060-313066	CAS155	0 - 8 bar	0,20 - 2,50 bar	22,0 bar	G 1/4 A	SPDT

Range setting
The pressure range within which the unit will give a signal (contact changeover).

Differential
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.

Approvals
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