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Precision Thermal Calibration: Calibrated to L170-30 specs to prevent heat exchanger damage and ensure safe furnace operation
Excessive voltage can cause coil overheating
Common Questions Can this sensor be used in return air plenums
The plug-in architecture simplifies boiler control maintenance
Using a sequencer with fewer poles than required by the original design may result in stages of heat failing to activate
United Electric B402-120 Temp Switch 319852-301 Precision Thermal Calibration: Calibrated toThe United Electric B402 120 is a heavy duty dual switch temperature control designed for industrial process monitoring and threshold protection. Part of the 400 Series, this immersion stem temperature switch features two SPDT snap acting switches that can be independently adjusted across the 0F to 225F range, allowing for versatile dual stage control such as high low limit alarms or simultaneous alarm and shutdown functions. Built for demanding
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