Keller – PA‑21Y / 0…10 bar / PN 22‑2155‑143 – 4‑20 mA Stainless Steel Pressure

The Keller PA‑21Y (PN 22‑2155‑143) is part of the rugged 21Y series of piezoresistive pressure transmitters, providing accurate 0‑10 bar measurement. Housed in compact stainless steel with an IP67 rating, this device delivers a stable 4‑20 mA output over 8–32 VDC, featuring excellent temperature compensation and high resistance to environmental influences—ideal for HVAC, hydraulics, food processing, and other industrial applications.

Key Specifications

• Model / P/N: PA‑21Y / 0…10 bar / PN 22‑2155‑143  

• Pressure Range: 0 to 10 bar (gauge)

• Output: 4–20 mA analog

• Supply Voltage: 8–32 VDC  

• Connection: G1/4” male process thread; DIN 43650 electrical connector  

• Accuracy: ±0.5 %FS (linearity BFSL)

• Total Error Band: ±1 %FS over 0…50 °C  

• Temperature Range: –10…+80 °C operational  

• Housing: Compact stainless steel, IP67, fully welded & high insulation up to 300 VDC