Two models are available with adjustable set points with ranges from 10 inches water to 15 psig (increasing pressure) and 7 inches water to 14.75 psig (decreasing).
NEMA 4 and 13 designations represent weather-proof switch construction and NEMA 7 and 9 represent explosion-proof hermetically-sealed designs.
ITT Neo-Dyn switches feature a negative rate Belleville spring snap acting device which offers greater set point stability, vibration resistance, over-pressure capability and cycle life.
Contact Teltherm for technical assistance and quotes.