Honeywell PA404A1033 Pressuretrol For Steam Boilers .5-9 Psi

Features:

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

Specifications:

Manufacturer: Honeywell
Manufacturer Part Number: PA404A1033
Product Type: Pressure Controller
Case Finish: Gray Enamel
Operator Type: Diaphragm
Operating Pressure Rating: 0.5 to 9 PSI
Differential Pressure Rating: 1 to 5 PSI
Pressure Media: Steam
Contact Configuration: SPST 2 Circuit
Contact Rating: 0.25 A @ 0.25 to 12 VDC, 8.3 A (Resistive) @ 120/240 Volt AC, 7.2 A @ 277 VAC
Connection Type: 1/4" Female Threaded
Dimensions: 5.55" x 4" x 3.1"
Weight: 1.12 lb.