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Stainless steel pressure switch with 1/4 NPT port and five pin connector

IFM Efector Inc

IFM Efector Inc PN4227 Pressure Switch 0-14.5 psi 1/4 NPT SPST

SKU CH-W9AD-Y5YHM

Monitors air or liquid pressure from 0 to 14.5 psi with a stainless-steel IP65 housing and SPST Triac output rated at 2.5 A

  • Product typeIndustrial Electrical Controls & Automation
  • Monitors air and liquids with 0-14.5 psi range
  • Handles 2.5 A loads via SPST triac output
  • IP65 stainless housing resists dust and water jets
  • Operates on 90-250 V AC at 45-65 Hz
  • Functions from 13 to 176 °F ambient temperature

Industrial pressure switch

The IFM Efector PN4227 is a digital pressure sensor built for industrial automation and control systems. It monitors air or liquid pressure from 0 to 14.5 psi and provides a triac output rated at 2.5A at 20 degrees C. The SPST contact form suits on/off switching tasks in process equipment.

Thermals and power

The unit operates on 90 to 250V AC at 45 to 65 Hz, drawing minimal power for its sensing and switching functions. An IP65 rated stainless steel housing protects internal electronics from dust and water jets. The assembly withstands ambient temperatures from 13 to 176 degrees F without active cooling.

Installation fit

A 1/4 inch FNPT process connection threads directly into standard piping, while a 5 pin 1/2 inch UNF connector handles the electrical link. The stainless steel wetted parts resist corrosion in harsh media. The burst pressure rating of 430 psi provides a wide safety margin. Not suited for applications needing analog output or higher pressure ranges.

How it compares

Measured against everything we stock in Electrical Enclosures & Cabinets, at today’s prices. Recalculated every night.

Price $372.99
Pricier than about 90% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameIFM
Product typeIndustrial Electrical Controls & Automation

Questions about this item

How do I wire the 5-pin 1/2 in UNF connector and what is the common mistake?

Supply 90 to 250V AC at 45 to 65 Hz to the designated pins; the common mistake is reversing line and load on the triac output.

What maintenance does the stainless steel sensor need?

Inspect the 1/4 in FNPT process connection and wetted stainless steel surfaces periodically for debris or corrosion; replace if the IP65 seal is compromised.

At what pressure does the burst limit become a concern during sustained operation?

The burst pressure is 430 psi, far above the 14.5 psi operating range, so the first limit reached is the 2.5A output current at 20°C.

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