Danfoss Electronics KPU Catalog Page
KPU - Pressure Switches
KPU pressure switches are designed to be contractor friendly and used in refrigeration and air-conditioning systems to protect the systems
from excessively low suction or too high discharge pressure. They can also be applied to start and stop compressors and the fans of air-cooled
condensers. KPU pressure switches, in single and dual versions, cover a comprehensive range of applications and are designed for use with
uorinated and non-aggressive refrigerants. Most KPU pressure controls can be used with R-410A systems.
Features
KPU
“Fingertip” test for
contact operation
Bellows design for fail safe
operation (KPU 6 and 16)
Easy adjustment of pressure and dierential
setting with standard refrigeration wrench.
Set screw to prevent setting
from migrating
Snap-action switch
Easy to access and maintain
contacts with 24 FLA rating
High visibility, high
contrast scale
Facts
Applications:
• Commercial air conditioning
• Commercial refrigeration
• Supermarket Refrigeration
• Food processing and storage
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Quick Select Guide
• Product Types
- Low Pressure
- High Pressure
- Dual Pressure
• Maximum working/test pressure
- LP controls: 245/290 psig
- HP controls: 505/505 psig
- KPU 6 and 16 on HP side: 675/675 psig
• Refrigerants: R-22, R-134a, R-404A, R-407A, R-407C, R-407F,
R-422B, R-422D, R-438A, R-448A, R-449A, R-450A, R-452A,
R-507A, R-513A, R-410A (only KPU 1, 2, 6, 16)
• Ambient temperature: −40 to +150 °F (175 °F for max. 2 hours)
• Enclosure: NEMA 1
• Cable entry: ⁄ inch cable entry for ½ inch male pipe thread
connection (conduit boss) or similar screwed cable entry
• Pressure connection: ¼ inch M are or 36 inch capillary
tube with ¼ inch are nut
• KPU 6W, 6B, and 16B feature “dual bellows” on high pressure
side to prevent leaks in the case of a bellows rupture
Technical data and ordering
KPU Pressure Switches
Danfoss
Typ e
KPU 1 Low Automatic SPDT 6 to 108 10.2 to 58 250
KPU 2 Low Automatic SPST (NO) 6 to 73 6 to 30 250
KPU 2 Low Automatic SPDT 6 to 73 6 to 30 250 060-5239 060-5240
KPU1B Low Manual SPDT 28 to 100 10.2 250 060-5232 060-5234
Pressure Reset
Contact
system
Range
(in. Hg/psig)
Dierential
(psig)
Max.
working
pressure
(psig)
Competitor
1
part no.
O10-1483
P70AB-2C
O10-1402
P70AB-12C
P170AB-12C
¼ in. M are
060-5231 060-5233
060-5237 060-5235
Danfoss Code No.
36 in. capillary tubes
with ¼ in. are nuts
KPU 5 Fan cycling Automatic SPST (NO) 100 to 465 26.1 to 87 510
2
KPU 6W
KPU 6B
High Automatic SPDT 100 to 600 58 to 145 675
2
High Manual SPDT 100 to 600 60 675 P70DA-1C 060-5244 060-5246
O10-2054
P70AA-118C
O16-108
P170CA-400C
P70CA-3C
060-5241 060-5242
060-5243 060-5245
KPU Dual Pressure Switches
Low pressure side High pressure side Rest
3
SPST (NO)
Contact
system
(LP/HP)
(NO/NC)
(NO/NC)
SPDT/
Danfoss
Typ e
KPU 15 6 to 108 10 to 60 100 to 465
KPU 15B 6 to 108 10 to 60 100 to 465 Automatic Manual
KPU 16B 6 to 108 10 to 60 100 to 600 Convertible3Convertible
1
Competitor part no. equipped with capillary tube for all but P170LB-1C which has are connections.
2
KPU 6 and the high pressure side of KPU 16 are designed with fail-safe double bellows.
3
Convertible reset controls can be adjusted for either automatic or manual reset. Adjust reset setting to match product being replaced.
Range
(in. Hg/psig)
Dierential
(psig)
Range
(psig)
Dierential
(psig)
60
Low pressure
side
Automatic Automatic
High
pressure
side
SPST
SPST
Max. working
pressure
(low/high side)
(psig)
250/510
250/510
250/675
Competitor
part no.
O12-1549
P170LB-1C
P70LB-1C
P70MA-1C
O12-4834
P170LB-1C
P70LB-1C
P70MA-1C
All controls are supplied with universal mounting bracket and mounting screws.
Ambient tempature: −40 °F to +122 °F (175 °F for maximum 2 hours).
KPU 1, 2, 6, 16 suitable for all HFC refrigerants, including R-410A.
Danfoss Code No.
1
¼ in. M
are
060-5247 060-5248
060-5249 060-5250
060-5253 060-5254
36 in.
capillary
tubes with
¼ are
nuts
120/240 VAC
Alternating Current
Motor Full Load Amps (FLA) 24
Locked Rotor Amps (LRA) 144
Direct Current 240 V DC: 12W pilot duty
Spare Parts and Accessories
Description Type(s) applied to Danfoss Code No.
39 in. with ¼ in. are coupling nuts on each end
Capillary tube;
KPU with ¼ in. M are 060-017166
Quick Select Guide
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