Honeywell Pressuretrol Controller, Adjustable, 0.5 - 9 psi, 1 - 5 psi Differential, Makes at Setpoint On Pressure Fall, Breaks at Setpoint Plus Differential On Pressure Rise, SPST Micro Snap-Acting Switch, 12 VDC, 120/277 VAC, 1/4 Inch FPT, 150 deg F, 4-15/32 Inch L x 3-3/8 Inch W x 2-1/4 Inch H, Stainless Steel Diaphragm, Gray Enamel
- 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 setpoint adjustment without removing the cover
- Differential is adjusted by means of a dial located inside the case
- 95% RH operating humidity range
- 20 psi maximum safe operating pressure
- 0.25 A at 0.25 to 12 VDC; 120 VAC Resistive: 8.3 A at 240 VAC Resistive: 8.3 A at 277 VAC resistive 7.2 A
- Recommended minimum setpoint is differential setting plus 1-1/2 psi
Standard/Approvals: CSA LR1620, UL MP466/MBPR
Application: Safety Control for Steam Heating Boilers
