Packard PS221 Pressure Switch, Fixed Set Point, SPDT, -40°-180ºF, DFS221, Cleveland Controls

Packard PS221 Air Pressure Sensing Switch. Fixed Set Point. By Cleveland Controls DFS221 Proving switch designed for duct heater, oven, and other HVAC or Energy Management applications where an open-mounted, nonadjustable switch is desirable. It is especially suitable for surface-mounting in areas where internal access is limited. Senses Positive, Negative, or Differential Air Pressure. Mounting: With The Diaphragm In Any Vertical Plane. Connection:1/4" Male 90° Quick-Connect terminals. Temperature Range ºF -40 to 180 Includes: Sample Line Probes, Orifice Plugs (Pulsation Dampers). Switch Type: SPDT. Electrical Rating: 15 Amps Noninductive/277 VAC; 300VA Pilot Duty/115-277 VAC; 60 Hz. Set Point: 0.05±0.02"w.c.