Data sheet
Pressure switch
Type KP-E
KP-E pressure switches for use in refrigeration
and air conditioning systems are equipped with
SPDT gold plated contacts and stainless steel
bellows.
The high pressure switches are equipped with
failsafe double bellows, whereas the low pressure
switches are equipped with reduced bellow
travel to enhance bellows life time.
KP-E pressure switches are used to protect
against excessively low suction pressure or
excessively high discharge pressure.
The units are designed to operate in explosive
zones acc. to 2014/34/EU, Atex directive,
explosive zone 2, surface equipment, category 3.
KP-E pressure switches for HCFC, HFC and HC
refrigerants are equipped with ¼ in solder
connection to ensure a hermetic installation.
Features • Ultra-short bounce time thanks to snap-action
function (reduces wear to a minimum
and increases reliability)
• Manual trip function
(electrical contact function can be
tested without the use of tools)
• Vibration and shock resistant
Approvals
CE-marked in accordance with EN 60947-4/-5
(for sale in Europe)
CE marked in accordance with PED 2014/68/EU,
category IV, safety equipment
• Compact design
• Bellows without any welding points
• Stainless steel bellows
• High reliability both electrically and
mechanically
Ex II 3G Ex ic IIB T6 Gc in accordance with
2014/34/EU Atex directive
© Danfoss | DCS (rm) | 2019.11
DKRCC.PD.CD0.1B.02 | 1
Data sheet | Pressure switch, type KP-E
Technical data
Ambient temperature -20 – 60 °C
KP 1E: PS / MWP = 17.0 bar *
Max. working pressure
Max. test pressure
Cable connection Pg 13.5 screwed cable entry for 6 – 14 mm cable
Contact rating
solid / stranded 0.75 – 2.5 mm
Wire dimensions
Tightning torque max. 2 Nm
Rated impulse voltage 4 kV
Pollution degree 3
Short circuit protection, fuse 10 A
Insulation 400 V
Enclosure IP30 / IP44
*
Low pressure protection
flexible, without ferrules 0.7 – 2.5 mm
flexible, with ferrules 0.7 – 2.5 mm
KP 6EW, KP 6EB: PS / MWP = 46.5 bar
KP 7EW, KP 7EB: PS / MWP = 32 bar
KP 1E: Pe = 20 bar
KP 6EW, KP 6EB: Pe = 46.5 bar
KP 7EW, KP 7EB: Pe = 35 bar
Pi max: 1 W
Ui max: 30 V
Ii max: 0.1 A
Ci max: 0.5 nF
Li max: 0.2 H
2
2
2
Enclosure
IP30 to EN 60529 / IEC 529
Enclosure IP30 is obtained when the units
without top cover are mounted on a flat surface
or bracket. The bracket must be fixed to the unit
so that all unused holes are covered.
IP44 to EN 60529 / IEC 529
Enclosure IP44 is obtained when the units with
top cover are mounted on a flat surface or
bracket. The bracket must be fixed to the unit so
that all unused holes are covered. KP pressure
switches with auto reset are supplied with top
cover. For KP pressure switches with manual
reset, the top cover must be separately ordered
(code no. 060-109766)
Ordering
FOR R290, R32, R444B, R600, R600a, R1234ze, R1270
For complete list of approved refrigerants, visit www.products.danfoss.com and search for individual code numbers, where refrigerants are
listed as part of technical data.
This product is validated in accordance to EN 60079-0:2012 + A11:2013.
Ignition risk is evaluated in accordance to EN 60079-11:2012.
See safety requirements on the next page.
Low pressure (LP) High pressure (HP) Reset
Typ e Pressure
KP 1E Low - 0.2 – 7.5 0.7 – 4.0 – – Auto – SPDT PSL 060-530066
KP 1E Low - 0.9 – 7.0 0.7 – – Man. (Min.) – SPDT PZL 060-530266
KP 6EW High – – 8 – 42 4 – 10 – Auto SPDT PSH 060-522466
KP 6EB High – – 8 – 42 4 –
KP 7EW High – – 8 – 32 4 – 10 – Auto SPDT PSH 060-530466
KP 7EB High – – 8 – 32 4 –
*
PSL, PZL, PSH, PZH according to EN 12263:1998
Regulating
range
[bar] [bar] [bar] [bar]
Differential pRegulating
range
Differential
p
Low
pressure
LP
High
pressure
HP
Man. (Max.)
Man. (Max.)
Contact
system
SPDT PZH 060-522566
SPDT PZH 060-530666
Function *
Code no.
Connection
1
/4 in. ODF
solder
© Danfoss | DCS (rm) | 2019.11
DKRCC.PD.CD0.1B.02 | 2