Danfoss KPS, KPS 43, KPS 45, KPS 47, KPS 76 Data sheet

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Data sheet

Pressure switch and Thermostat KPS

The KPS Series consists of a series of pressure and temperature controlled switches. In this series, special attention has been given to meeting demands for a high level of enclosure, robust and compact construction, and resistance to shock and vibration.

For KPS pressure switches the position of the contacts depends on the pressure in the inlet connection and the set scale value.

For KPS thermostats the position of the contacts depends on the temperature of the sensor and the set scale value.

The series covers most outdoor as well as indoor application requirements and is suitable for use in monitoring alarm and control systems in factories, diesel plants, compressors, power stations and on board ships.

Features

Approvals

Ship approvals

• A high level of enclosure

• Adjustable dierential

CE-marked in accordance with: – LVD 2014/35/EU (EN 60947-1, EN 60947-4-1, EN 60947-5-1)

American Bureau of Shipping, ABS Det Norske Veritas, DNV Germanischer Lloyd, GL Registro Italiano Navale, RINA (KPS 43, KPS 45, KPS 47, KPS 76, KPS 77, KPS 79, KPS 80, KPS 81, KPS 83) Maritime Register of Shipping, RMRS

• Robust and compact construction

• Resistance to shock and vibration

• Available with all major marine approvals

Underwriters Laboratories Inc., US-UL (excluding KPS 39) China Compulsory Certicate, CCC

Nippon Kaiji Kyokai, NKK (KPS 31, KPS 33, KPS 35, KPS 37, KPS 39, KPS 43, KPS 45, KPS 47) China Classication Society, CCS Bureau Veritas, BV Korean Register of Shipping, KR (KPS 35, KPS 37, KPS 39, KPS 43, KPS 45, KPS 47) Lloyds Register of Shipping, LR

IC.PD.P10.I6.02 | 520B7855 | 1© Danfoss | DCS (jmn) | 2017.03

Data sheet | Pressure switch and Thermostat, KPS

Overview

1. Standard pressure switches

[bar] Range P

-1 0 10 20 30 40 50 60

[bar]

0 – 2.5 KPS 31 3

0 – 3.5 KPS 33 3

0 – 8 KPS 35 3

6 – 18 KPS 37 3

10 – 35 KPS 39 3

2. Pressure switches for high pressure and strongly pulsating media

[bar] Range P

-1 0 10 20 30 40 50 60 [bar]

1 – 10 KPS 43 3

4 – 40 KPS 45 3

6 – 60 KPS 47 3

3. Thermostats

Typ e

Further

information page

Further

information page

[°C] Range P

-50 0 50 100 150 200 200 [°C]

-10 – 30 KPS 76 11

20 – 60 KPS 77 11

50 – 100 KPS 79 11

70 – 120 KPS 80 11

60 – 150 KPS 81 11

100 – 200 KPS 83 11

Typ e

Further

information page

Data sheet | Pressure switch and Thermostat, KPS

PRESSURE SWITCH

Technical data and ordering

KPS 31, KPS 33

KPS 35, KPS 37, KPS 39

1. Pressure switches

Typ e Setting

KPS 31 0 – 2.5 0.1 6 6 G 1/

KPS 31 0 – 2.5 0.1 6 6 G 3/8 A 060-310966

KPS 33 0 – 3.5 0.2 10 10 G 1/

KPS 33 0 – 3.5 0.2 10 10 G 3/8 A 06 0-310366

KPS 35 0 – 8 0.4 – 1.5 12 12 G 1/

KPS 35 0 – 8 0.4 – 1.5 12 12 G 3/8 A 060-310066

KPS 35 0 – 8 0.4 12 12 G 1/

KPS 37 6 – 18 0.85 – 2.5 22 27 G 1/

KPS 37 6 – 18 0.85 – 2.5 22 27 G 3/8 A 060-310166

KPS 39 10 – 35 2.0 – 6 45 53 G 1/

KPS 39 10 – 35 2.0 – 6 45 53 G 3/8 A 060-310266

range P

Adjustable/

xed

dieretial

Permissible

operating

pressure P

Max. test

pressure

[bar] [bar] [bar] [bar]

Pressure

connection

Code no.

060-311066

060-310466

060-310566

060-310866

060-310666

060-310766

KPS 43, KPS 45, KPS 47

When ordering, please state type and code number

Terminology

2. Pressure switches for high pressure and strongly pulsating media

Typ e Setting

range P

Adjustable

also gs. 1,

di. see

2, and 3

[bar] [bar] [bar] [bar] [bar]

KPS 43 1 – 10 0.7 – 2.8 120 180 24 0 G 1/

KPS 45 4 – 40 2.2 – 11 120 180 240 G 1/

KPS 47 6 – 60 3.5 – 17 120 180 24 0 G 1/

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

Permissible

overpressure

Max. test

pressure

Min. burst

pressure

Pressure

connection

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

Dierential

as a recurring system pressure. The dierence between make pressure and break pressure (see also g. 5 & 6, page 6).

Min. bursting pressure

The pressure which the pressure-sensitive Permissible overpressure

element will withstand without leaking. The highest permanent or recuiring pressure the unit can be loaded with.

Code no.

060-312066

060-312166

060-312266

Data sheet | Pressure switch and Thermostat, KPS

Technical data and ordering

(continued)

Switch Single pole changeover (SPDT) Contact material: Gold-plated silver contact

Ohmic 10 A, 440 V, AC-1

Contact load (when Au surface isburntaway)

Alternating current

Inductive

Starting current max. 50 A (locked rotor)

6 A, 440 V, AC-3

4 A, 440 V, AC-15

Direct current 12 W, 220 V, DC-13, see curve, g. 4, page 5

Ambient temperature

Temperature of medium

KPS 31 – 39 -40 – 70 °C

KPS 43 – 47 -25 – 70 °C

KPS 31 – 39 -40 – 100 °C

KPS 43 – 47 -25 – 100 °C

Vibration resistance Vibration-stable in the range 2 – 30 Hz, amplitude 1.1 mm og 30 – 300 Hz, 4 g.

IP67 (including IPX6) according to EN 60529.

Enclosure

The pressure switch housing is enamelled pressure die cast aluminium (GD-AlSi 12). Thecover is fastened by four screws which are anchored toprevent loss. The enclosure can be sealed with wire.

Cable entry Pg 13.5 for cable diameters from 5 – 14 mm.

Identication The type designation and code no. of the unit is stamped in the side of the housing.

For water and seawater, max. 80 °C.

Types Scale accuracy Mean value of snap point variation after

400000operations

[bar] [bar]

KPS 31 ±0.2 ±0 .1

KPS 33 ±0.3 ±0.2

KPS 35 ±0.5 ±0.3

KPS 37 ±1.0 ±0.4

KPS 39 ±3.0 ±0.7

KPS 43 ±1. 0 ±0.2

KPS 45 ±4.0 ±1.0

KPS 47 ±6.0 ±1. 5

Materials in contact with the medium

Typ e Materials

Bellows capsule Deep-drawn plate, material no. 1.0524 (DIN 1624)

KPS 31, KPS 33

KPS 35, KPS 37, KPS 39

KPS 43, KPS 45, KPS 47

Bellows Stainless steel, material no. 1.4306 (DIN 17440)

Pressure connection Steel C20, material no. 1.0420 (DIN 1652)

Bellows Stainless steel, material no. 1.4306 (DIN 17440)

Pressure connection Brass, W. no. 2.0401 (DIN 17660)

Diaphragm capsule Nickel-plated brass, DIN 50 968 Cu/Ni 5 (DIN 1756)

Diaphragm Nitrile-Butadien rubber

[bar]

Danf

60-501.12.20

Danf

60-502.12.20

[bar]

Danf

60-503.12.20

[bar]

Data sheet | Pressure switch and Thermostat, KPS

Technical data and ordering

(continued)

KPS 43

Fig. 1

KPS 47

KPS 45

[bar]

oss

[bar]

oss

Fig. 2

[bar]

A: Range setting B: Dierential scale C: Obtained dierential

Fig. 3

Direct current (DC) -load

[mA]

12 W

oss

Fig. 4

[V]

Curve A:

gives the maximum load

Hatched area B:

Acceptable load for thegoldplating ofthecontact

Data sheet | Pressure switch and Thermostat, KPS

Function

I. Alarm for falling pressure

given at the set rangevalue

II. Alarm for rising pressure

given at the set range value plus the dierential.

1. KPS 31

Contacts 1-2 make and contacts 1-4 break when the pressure falls under the set range value. The contacts changeover to their initial position when the pressure again rises to the set range value plus the dierential (see g. 5).

[bar]

Fig. 5

[s]

Scale setting Mechanical dierential

I. Alarm for rising pressure

given at the set rangevalue

II. Alarm for falling pressure

given at the set range value minus the dierential

2. All other KPS pressure SWITCHES

Contacts 1-4 make and contacts 1-2 break when the pressure rises above the set range value. The contacts changeover to their initial position when the pressure again fails to the range value minus the dierential (see g. 6).

[bar]

Fig. 6

[s]

Scale setting Mechanical dierential

+ 12 hidden pages

Danfoss KPS, KPS 43, KPS 45, KPS 47, KPS 76 Data sheet

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