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4250 - Hazardous Duty Temperature / Pressure Switches |
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Features● EXPLOSION PROOF ● CSA APPROVED ● BASEEFA CERTIFIED ● SINGLE / DUAL TEMPERATURE ● SINGLE / DUAL PRESSURE ● PRESSURE / TEMPERATURE Applications● JACKET WATER OVER-TEMPERATURE ● ENGINE / COMPRESSOR COOLANT LOSS ● ENGINE / COMPRESSOR OIL OVER-TEMPERATURE ● PROCESS ALARMS OperationThe 4250 Series is designed for use wherever explosion-proof switches are needed to sense pressure or temperature. Several types are available for sensing dual temperatures, dual pressures or single pressure and temperature points. Pressure ranges from 5-250 psi (35-1723 kPa) and temperature ranges from 60-245 ûF (16-118 ûC) are avail-able. The 4250 Series is ideal for providing a quick action switch at set points on engine and compressor coolants systems, process control points, lubrication systems and alarm systems in hazardous duty locations. Well established and long proven pressure and temperature sensing methods enable precise and reliable operation largely unaffected by changes in ambient conditions. These units are inexpensive and easy to install since multifunction and dual switching types share common housings. Model Types Model 4251 Pressure and Temperature Switch combination with two switches, one for the pressure set point and the other for temperature set point. Model 4252 Pressure Switch with one pressure set point. Model 4253 Temperature Switch with one temperature setpoint. Model 4254 Temperature Switch with two switches, each independently adjustable, providing two temperature set points, within the limits of one chosen temperature range. Model 4255 Pressure Switch with two switches, each independently adjustable providing two pressure setpoints within the limits of the chosen pressure range. SpecificationsHousing Material .................................... Cast Aluminum |
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This and other information from AMOT provide product or system options for further investigation by users having technical expertise. Before you select or use any product or system, it is important that you analyze all aspects of your application and review the information concerning the product in the current product catalog. The user, through its own analysis and testing, is responsible for making the final selection of the system and components and assuring that all performance, safety and warning requirements of the applications are met.
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