Danfoss
KP1
Low Pressure Pressure Switch • Low Pressure Protection
Quick Stats
Series
KP
Type
Low Pressure
Function
Low Pressure Cut-Out
Contacts
SPDT
Reset Type
Automatic
Single pole low pressure switch for low pressure cut-out and pump down control.
Technical Specifications
Pressure Range
| Range (bar) | -0.2 to 7.5 |
| Range (psi) | -3 to 109 |
| Differential (bar) | 0.7 to 4.0 |
| Differential (psi) | 10 to 58 |
Electrical
| Contact Type | SPDT |
| Contact Rating | 16A/250VAC |
Physical
| Connection | 1/4" SAE flare (7/16-20 UNF) |
| Enclosure | IP30 (IP44 with cover) |
| Temp Range | -40 to +65°C |
| Max Working Pressure | 17 bar |
Compatible Refrigerants
R134a
R404A
R407C
R410A
R22
R507A
R717
R290
Typical Settings
| Application | Cut-Out | Differential | Cut-In |
|---|---|---|---|
| R404A Low Temp | 0.5 bar | 1.5 bar | 2.0 bar |
| R404A Med Temp | 1.0 bar | 1.5 bar | 2.5 bar |
| R134a AC | 1.5 bar | 1.0 bar | 2.5 bar |
Wiring Diagram
| Terminal | Function |
|---|---|
| 1 | Common |
| 2 | Normally Closed (opens on pressure drop) |
| 4 | Normally Open (closes on pressure drop) |
Applications
- Compressor low pressure protection
- Pump down control
- Low charge protection
- Freeze protection
Cross Reference / Alternatives
Ranco O16
Penn P20
Manufacturer Information
Brand: Danfoss
Country: Denmark