Specifications:

• Application: Safety control for steam heating boilers 
• Pressure Ratings (Set Point): Recommended minimum set point is differential setting plus 1 1/2 psi.
• Pressure Sensing Element: Stainless Steel diaphragm 
• Switching Action: Makes at set point on pressure fall; Breaks at set point plus differential on pressure rise 
• Switch Type: SPST snap-acting switch 
• Pipe Connections: 1/4 in. female pipe threads 
• Pressure Surge (max. psi): 50 psi 
• Pressure Surge (max. kPa): 345 kPa 
• Adjustable Scale Range (psi): 0.5 psi to 9 psi 
• Adjustable Scale Range (kPa): 3 kPA to 62 kPa 
• Adjustable Operating Pressure Range (psi): 0.5 psi to 9.0 psi 
• Adjustable Operating Pressure Range (kPa): 3 kPa to 62 kPa 
• Maximum Operating Pressure (psi): 20 psi 
• Maximum Operating Pressure (kPa): 137 kPa 
• Differential Pressure Range (psi): Additive: 1 psi to 5 psi 
• Differential Pressure Range (kPa): Additive: 7 kPa to 35 kPa 
• Electrical Ratings: 0.25 A @ 0.25 to 12 Vdc 
• Electrical Ratings (120 Vac, Full Load): 8.0 A 
• Electrical Ratings (120 Vac, Locked Rotor): 48.0 A 
• Electrical Ratings (120 Vac, Resistive): 8.3 A 
• Electrical Ratings (240 Vac, Full Load): 5.1 A 
• Electrical Ratings (240 Vac, Locked Rotor): 30.6 A 
• Electrical Ratings (240 Vac, Resistive): 8.3 A 
• Electrical Ratings (277 Vac, Resistive): 7.2 A 
• Electrical Ratings (Pilot Duty): 150 VA @ 277 Vac 
• Materials (Case): Gray enamel finish 
• Maximum Ambient Temperature (F): 150 F 
• Maximum Ambient Temperature (C): 66 C 
• Operating Humidity Range (% RH): 95% RH, non-condensing 
• Dimensions (in.): 4 15/32 in. high x 3 3/8 in. wide x 2 1/4 in. deep 
• Dimensions (mm): 114 mm high x 86 mm wide x 58 mm deep 
• Approvals, Underwriters Laboratories Inc UL Listed: File no. MP466, Guide no. MBPR.
• Approvals, Canadian Standards Association CSA Listed: File no. LR1620. 
• Tradeline Value: Tradeline 
• Ref: Honeywell.com

Weight	1.0 lb
Height	5.00 in.
Length	5.00 in.
Width	3.00 in.
Inventory Number	HONPA404A1033
MPN	PA404A1033