PA404B1023/U Honeywell Pressuretrol For Suspension Heaters 0.5-9.0 PSI

• Pressure Controller
• Minimum AC Voltage (V) 120 Volt
• Maximum AC Voltage (V) 277 Volt
• Minimum DC Voltage (V) 24 Volt
• Size 3-3/8" Width x 2-1/4" Depth x 4-15/32" Height
• Application Suspension Type Unit Heaters
• Approval UL, CSA
• Capacity 0.25 Amp at 12 Volt DC, 8 Amp (Full Load), 48 Amp (Locked Rotor), 8.3 Amp (Resistive) at 120 Volt AC, 5.1 Amp (Full Load), 30.6 Amp (Locked Rotor), 8.3 Amp (Resistive) at 240 Volt AC, 7.2 Amp (Resistive), 150 VA (Sealed) at 277 Volt AC
• Adjustable Operating Pressure Range 0.5 to 9 PSI
• Maximum Operating Pressure 20 PSI
• Differential Pressure Range Subtractive 1 to 5 PSI
• Switch Type SPST Snap-Acting Switch
• Materials Gray Enamel Finish (Case)
• Maximum Ambient Temperature 150 Deg F
• Pipe Connections 1/4" Female Threaded
• Pressure Sensing Element Stainless Steel Diaphragm

Install Instructions
Specification Sheet

The Pa404 is a Series 40 (2-Wire, Spst) Pressuretrol Controller for use in 24, 120, 240 or 277 Volt Control Circuit's or in Self-Powered (Mill Volt) Applications; ? the Pa404A is a Pressure Actuated High Limit, Safety Control for Steam Heating Boilers; It Breaks an Electrical Circuit to Shut Down the Burner if Steam Pressure Rises Above a Safe Level; ? the Pa404B is Used with Suspension-Type Unit Heaters to Make the Fan Circuit when a Pressure Rise Indicates the Presence of Steam; ? Each Model Contains an Spst Micro Switch? Snap-Acting Switch ? Sensitive Pressure-Actuated Diaphragm Expands or Contracts with Pressure Variations, Moving a Lever Mechanism Which Operates the Snap Switch; ? a Screw on Top of the Case Allows Set Point Adjustment without Removing the Cover; ?Differential is Adjusted by Means of a Dial Located Inside the Case