Resideo - Honeywell Home PA404A1025 Pressure Controller

Pressure Controller PA404A1025 from Resideo (Honeywell Home) delivers reliable steam boiler safety and precise pressure control. This diaphragm-operated unit uses additive or subtractive differential tuning to maintain steady steam pressure in heating systems, helping protect equipment and improve efficiency.

Operating pressure ranges from 3 to 15 PSI with a differential of 1 to 5 PSI. Designed for steam media, it features SPST 2-circuit contacts and versatile electrical ratings for control circuits and line power. The unit is UL and CSA approved, finished in gray enamel, and sized to fit compact control panels with 1/4 inch female threaded connections (3-3/8W x 2-1/4D x 4-15/32H).

• Type: Additive/Subtractive Differential
• Operating pressure: 3–15 PSI
• Differential: 1–5 PSI
• Media: Steam
• Contact configuration: SPST, 2 circuits
• Electrical ratings: 0.25 A DC (0.25–12 VDC); 8.3 A resistive at 120/240 VAC; 7.2 A at 277 VAC
• Connection: 1/4" female thread
• Application: Safety control for steam heating boiler
• Certifications: UL, CSA
• Finish & dimensions: Gray enamel; 3-3/8"W x 2-1/4"D x 4-15/32"H