The Resideo PA404A1033 is a high-limit pressure safety control for steam heating boilers, designed to regulate burner operation and prevent over-pressurization. It features an adjustable pressure range of 0.5–9 PSI with a 1–5 PSI additive differential, a stainless steel diaphragm for corrosion resistance, and SPST snap-acting switching rated for line voltage (24V, 120V, 240V, 277V), low voltage, and millivoltage circuits. Installation requires a pigtail siphon and 1/4" female NPT connection mounted above the water line on the boiler.
Resideo PA404A1033 Steam Pressure Safety Control 1/2-9 PSI
Resideo
$0.00
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- OEM / cross-reference
- PA404A1033/U
- Fits brands
- Honeywell, White-Rodgers
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Resideo
Resideo PA404A1033 Steam Pressure Safety Control 1/2-9 PSI
- SKU:
- PA404A1033
- Product Type:
- Pressure Safety Control
- Subcategory:
- Steam Boiler High-Limit Switch
- Application:
- Residential/Commercial
- System Type:
- Boiler, Steam Heating System
- Installation Type:
- OEM Replacement
- Voltage:
- 24V, 120V, 240V, 277V
- Voltage Class:
- Line Voltage
- Phase:
- Single Phase
- Mounting Type:
- Pigtail Siphon Mount
- Setpoint Range:
- 0.5–9 PSI
- Pressure Rating:
- 9 PSI
- Inlet Size:
- 1/4" Female NPT
- Connection Type:
- NPT
- Connection / Joint:
- NPT
- Material:
- Stainless Steel Diaphragm, Gray Enamel Case
- Control Type:
- Non-Programmable
- Switch Action:
- SPST
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