Resideo - Honeywell Home PA404A1033 Pressure Controller

The Pressure Controller for steam systems, the Resideo Honeywell Home PA404A1033 Pressure Controller, delivers precise control with an additive differential and a diaphragm actuator. This device serves as a safety control for steam heating boilers, offering reliable operation across a 0.5 to 9 PSI operating range and a 1 to 5 PSI differential. The SPST 2‑circuit contacts and robust ratings support a range of control circuits, while UL and CSA approvals confirm safety and compliance. The 1/4 inch female threaded connection ensures straightforward installation in standard boiler wiring paths. Finished in gray enamel for durable panel fit and long service life.

• Pressure range: 0.5–9 PSI operating; differential 1–5 PSI
• Media and application: Steam; safety control for steam heating boiler
• Electrical ratings: SPST 2‑circuit; 0.25 A at 0.25–12 VDC; 8.3 A resistive at 120/240 VAC; 7.2 A at 277 VAC
• Connection: 1/4" female threaded
• Approvals: UL, CSA
• Physical specs: 3-3/8"W x 2-1/4"D x 4-15/32"H; gray enamel finish