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Danfoss KP37 Pressure Switch 4–21 bar 1/2”

Original price was: $179.34.Current price is: $89.67.

A pressure switch with an adjustable 4–21 bar range and a 1/2” male connection. It features a bellows sensor, SPDT contact, and automatic reset. Suitable for compressors, refrigeration, and HVAC systems.

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SKU: 05.04.01.009.010.13 Category: Brand:
Pressure Control / Refrigeration & HVAC

Danfoss KP37 Pressure Switch 4–21 bar 1/2”

Delivers precise, automatic pressure control for demanding industrial systems.

The Danfoss KP37 Pressure Switch 4–21 bar 1/2” automatically manages pressure in industrial compressor and refrigeration systems. In addition, its 1/2” G male connection allows quick installation into standard pipework. Moreover, the wide adjustment range adapts to different pressure requirements, while automatic reset optimizes energy consumption.

A bellows-type sensor detects even the smallest changes in system pressure and triggers the SPDT contact. Furthermore, the differential setting is selectable between 1.8 and 3 bar, which ensures smooth starting of pumps and fans. Consequently, the IP30 rating protects electrical components from external influences. Maximum working pressure is 28 bar, with a test pressure limit of 32 bar. Contact capacity is 16A (AC1), 8A (AC3), and 12W (DC). The operating temperature range spans -40°C to +65°C.

Danfoss KP37 Pressure Switch — Technical Specifications

Pressure Setting Range
4–21 bar (adjustable)
Differential Setting Range
1.8–3 bar
Pressure Connection
1/2” G (Male)
Contact Configuration
SPDT (changeover)
Protection Class
IP30
Maximum Working Pressure
28 bar
Test Pressure Limit
32 bar
Contact Capacity
16A (AC1), 8A (AC3), 12W (DC)
Operating Temperature Range
-40°C … +65°C

This pressure switch is widely used in refrigeration, HVAC, and industrial air compressor systems. In particular, it plays a critical role in process control and safety circuits. Additionally, the 16A AC1 contact capacity safely controls heavy-duty motors. Furthermore, the wide operating temperature range from -40°C to +65°C adapts to harsh environments.

Key Advantages

  • Wide adjustment range adapts to different pressure values
  • Automatic reset for energy efficiency and ease of operation
  • Bellows sensor technology for high precision and reliability

Applications

  • Compressor protection in refrigeration and air conditioning systems
  • Industrial air compressors and energy optimization
  • Pressure control and safety circuits in HVAC installations

In conclusion, the Danfoss KP37 Pressure Switch 4–21 bar provides reliable pressure management for your industrial systems. As an authorized distributor since 1985, ORFA Industrial stocks this product and supplies worldwide and provides technical support. Contact us for technical support and orders.

ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.

Your Reliable Partner in Industrial Flow Technologies

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