Provide operating control and automatic high limit protection for vapor heating systems with pressures up to 4 psi (8 kPa). All models have Microswitch snap switches to open or close a circuit on a pressure rise.
Clear plastic cover allows observation of the pressure settings|Main or high pressure-1/4 in NPT internal thread or surface mount through back of case|Ground screw terminal|-35 to 150 F ambient temperature|Screw terminals electrical connections|Contact ratings: 120 VAC switch contact- 8.0 AFL, 48 ALR, 10.0 A resistive; 240 VAC switch contact- 5.1 AFL, 30.6 ALR, 5 A resistive|Auto recycle switch operation|15 psi surge pressure
Honeywell Vaporstat Controller, 0 to 16 oz/sq-in Control Range, SPDT Switch, R-W, Break R-B on Pressure Rise, 2 to 16 oz/sq-in Differential Pressure Range, 1/4 in NPT, 4-1/2 in W x 4-1/2 in D x 5-1/8 in H