Danfoss KP 1, KP 2, KP 5, KP 7, KP 15 Data sheet

Data Sheet

Pressure switch
Type KP

The KP pressure switches can be used as safety
switches against too low a suction pressure
and / or too high a discharge pressure in
refrigeration and air conditioning systems. They
can also be used to start / stop compressors
and fans for air-cooled condensers.

They are available in both single and dual
versions and include a single pole double
throw (SPDT) switch.

Features:

• Ultra-short bounce time thanks to snap­action function (reduces wear to a minimum
and increases reliability)

• Available with gold-plated contacts

• SPDT switch design Oers open or close
switching action on pressure rise or fall

• Fail safe double bellows Prevent refrigerant
loss and system contamination - standard on
KP 7 and KP 17 pressure switches

• Convenient manual trip feature To test
electrical contact function - no tools needed

• Pressure wire connectors For easy electrical
wiring

• No spade or lug terminals required

• Integral 1⁄2 NPSM swivel cable connector
Allows direct attachment of 1⁄2 in male pipe
thread connector

• Lockplate Prevents tampering with range and
dierential settings

• Universal mounting hole patterns

AI216886432258en-001101

421 4 2 1

Danfoss

A60-1032.10

A

B

C

D

E

F

G

H

I

I

ABCDEFGHI

SPDT - signal pole double throw

Pressure / Temperature

Rise

Drop

Load Cut-in (term.1-4)

Load Cut-out (term.1-2)

Load Cut-out (term.1-4)

Load Cut-in (term.1-2)

Line

Features

Values

Ambient temperature

-40 – 149 °F (175 °F for maximum 2 hours)

Maximum working pressure
LP: MWP = 245 psig

HP: MWP = 465 psig

Maximum test pressure
LP: pe = 285 psig

HP: pe = 510 psig

Switch

Single pole changeover switch (SPDT)

Contact load

120 V AC: 16 FLA, 96 LRA

240 V AC: 8 FLA, 48 LRA

240 V DC: 12 W pilot duty

Terminal D, dual switches

240 V, 50 VA

Control type

Material

KP 1, KP 2, KP 5, KP 7, KP 15, KP 17, KP 25

Tin bronze, no. CW452K, EN 1652 Nickel plated free cutting steel, no. 1.0737 /

1.0718 to EN 10277

KP with cap. tube

Copper SF-Cu, no. 2.0090 to DIN 1787

Load

Signal option

Bellows movement on pressure rise

Bellows movement on pressure drop

Pressure switch, Type KP

Product specication

Technical data

Table 1: Technical data

Cable entry

Integral 1⁄2 in female NPSM swivel cable connector allows direct attachment of 1⁄2 in male pipe thread connector.

Enclosure

~NEMA 1
This grade of enclosure is obtained when the units without top cover are mounted on a at surface or bracket.
The bracket must be xed to the unit so that all unused holes are covered.

~ NEMA 2
This grade of enclosure is obtained when the units with top cover are mounted on a at surface or bracket.
The bracket must be xed to the unit so that all unused holes are covered

Table 2: Materials in contact with the medium

Electrical wiring

Table 3: Electrical wiring

Figure 1: Low or high pressure

© Danfoss | Climate Solutions | 2021.02 AI216886432258en-001101 | 2

1.2.3.4.5.

Dual (low and high) pressure, LP signal

Dual (low and high) pressure, LP and HP signal

1

2

3

4

A2113

1

2

3 5

A2115

Load

LP - signal option

Line

Wiring instruction

HP - signal option

Low pressure, LP: KP 1 and KP 2

High pressure, HP: KP 5, KP 7W and KP 7B

Dual (low and high) pressure: KP 15, KP 17W, KP 17B and KP 25

Dual (low and high) pressure: KP 15, KP 17W, KP 17B and KP 25

Pressure switch, Type KP

Metric conversions
1 psi = 0.07 bar
5⁄9 (t1 °F - 32) = t2 °C

© Danfoss | Climate Solutions | 2021.02 AI216886432258en-001101 | 3