Danfoss Type KPS Thermostat

KPS units are pressure-controlled switches. The position of the contacts depends on the pressure in the inlet connection and the set scale value. In this series, special attention has been given to meeting important demands for:

• a high level of enclosure,
• robust and compact construction,
• resistance to shock and vibration.

The KPS series covers most outdoor as well as indoor application requirements.

KPS pressure switches are suitable for use in alarm and regulation systems in factories, diesel plant, compressors, power stations and on board ship.

Approvals - EN 60 947-4-1 and EN 60 947-5-1

Ship Approvals - American Bureau of Shipping; Germanischer Lloyd, Germany Bureau Veritas, France.  Includes thermostats with fixed sensor and pressure controls with armoured capillary tube.

1. Pressure Switches

Setting range Pe [bar]	Adjustable/ fixed differential [bar]	Permissible operating pressure Pe (bar)	Max. test pressure (bar)	Pressure Connection	Order Code	Type
0 - 2.5	0.1	6	6	G 1/4	060-311066	KPS 31
0 - 2.5	0.1	6	6	G 3/8A	060-310966	KPS 31
0 - 3.5	0.2	10	10	G 1/4	060-310466	KPS 33
0 - 3.5	0.2	10	10	G 3/8A	060-310366	KPS 33
0 - 8	0.4 - 1.5	12	12	G 1/4	060-310566	KPS 35
0 - 8	0.4 - 1.5	12	12	G 3/8A	060-310066	KPS 35
0 - 8	0.4	12	12	G 1/4	060-310866	KPS 35
6 - 18	0.85 - 2.5	22	27	G 1/4	060-310666	KPS 37
6 - 18	0.85 - 2.5	22	27	G 3/8 A	060-310166	KPS 37
10 - 35	2.0 - 6	45	53	G 1/4	060-310766	KPS 39
10 - 35	2.0 - 6	45	53	G 3/8 A	060-310266	KPS 39

2. Pressure Switches for High Pressure and Strongly Pulsating Media

Setting Range Pe (bar)	Adjustable diff see also pdf	Permissible overpressure (bar)	Max. test pressure (bar)	Min. burst pressure (bar)	Pressure Connection	Code No.	Type
1 - 10	0.7 - 2.8	120	180	240	G 1/4	060-312066	KPS 43
4 - 40	2.2 - 11	120	180	240	G 1/4	060-312166	KPS 45
6 - 60	3.5 - 17	120	180	240	G 1/4	060-312266	KPS 47

Click for a complete Danfoss KPS Pressure Switch and Thermostat PDF.

Terminology

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

Differential - The difference between make pressure and break pressure (see pdf).

Permissible overpressure - 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. bursting pressure - The pressure which the pressure-sensitive element will withstand without leaking.