Johnson Controls P100 CP-52D mini high-pressure pressure switch, NC, 23.03 – 27.99 bar, automatic, SPST, 1/4" SAE flare

The Johnson Controls P100 CP-52D is a powerful miniature high-pressure pressure switch specifically designed for precise monitoring and safe shutdown at high pressures in refrigeration, heat pump, and HVAC systems . With a switching range of 23.03 to 27.99 bar, it reliably protects compressors and system components from dangerously high operating pressures.

Equipped with an NC (Normally Closed) SPST contact, the circuit remains closed in the normal state. Once the preset pressure is reached, the contact opens automatically to safely disconnect connected devices from the circuit.

Thanks to the automatic reset, operation is automatically restored after pressure relief, enabling uninterrupted, maintenance-free use .

The standardized 1/4" SAE flare connection enables quick, leak-proof, and solder-free installation – ideal for service calls or retrofit solutions in commercial refrigeration systems.

✅ Product advantages at a glance:

• Switching range: 23.03 – 27.99 bar – for high system pressures

• NC function (Normally Closed): Circuit is automatically opened when pressure is reached

• SPST contact: Reliable electrical isolation

• Automatic reset: No manual restart required

• 1/4" SAE flare connection: Fast, leak-free installation without soldering

• Ideal for compressor protection, commercial refrigeration, heat pumps and HVAC applications

🔧 Technical data:

• Brand: Johnson Controls

• Model: P100 CP-52D

• Type: Mini high pressure pressure switch

• Pressure range: 23.03 – 27.99 bar

• Function: NC (Normally Closed)

• Contact: SPST

• Reset: Automatic

• Connection: 1/4" SAE flare

• Applications: Commercial refrigeration, heat pumps, air conditioning, compressor protection

Weight: approx. 0.18 kg
Scope of delivery: 1 × Johnson Controls P100 CP-52D mini pressure switch, NC, with automatic reset