Mini high-pressure pressure switch DANFOSS ACB, NC, 20 – 26 bar, automatic, SPST, 1/4" SAE flare

The DANFOSS ACB mini pressure switch is the ideal solution for high-pressure monitoring in refrigeration, heat pump, and HVAC systems . With a switching range of 20 to 26 bar , this compact high-pressure switch offers reliable protection against critical pressure peaks—perfect for commercial applications with limited installation space .

Equipped with an NC (Normally Closed) SPST contact , the circuit opens automatically as soon as the preset pressure value is exceeded. The automatic reset ensures trouble-free restart without manual resetting—ideal for continuous operation systems .

Installation is quick and safe via the 1/4" SAE flare connection , without any soldering. The robust construction and compact shape make the ACB switch a reliable partner for service, retrofitting, or new installations.

Advantages at a glance:

• Ideal for compressor protection in high-pressure circuits

• Maintenance-free operation thanks to automatic reset

• Easy integration through standardized SAE flare connection

• Compact design for tight installation spaces

🔧 Technical data:

• Model: ACB

• Pressure range: 20 – 26 bar

• Contact type: SPST (NC – Normally Closed)

• Reset: automatic

• Connection: 1/4" SAE flare

• Type: Mini high pressure pressure switch

• Applications: Commercial refrigeration systems, heat pumps, air conditioning units, HVAC technology, compressor protection