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this SPST (Single Pole Single Throw) switch opens on temperature rise
the TRR0713 (now often updated as TRR00713) provides the 60Hz frequency stability and industrial-grade reliability required to keep service agreements intact and systems running at peak efficiency
The integrated automatic ball checks provide critical protection by sealing the flow of fluids in the event of glass breakage
While a technician may momentarily jump the switch to confirm a failed limit control
Hydrolevel 24SV Low Water Cut-Off 30067439-890 this SPST (Single Pole SingleThe Hydrolevel 24SV Low Water Cut Off is a heavy duty electronic safety control designed for 24Vac hot water boiler applications. Engineered with a compact NEMA 1 enclosure, this unit is built for tight residential and light commercial boiler rooms where space is at a premium. The Hydrolevel 45 245 utilizes a specialized EL1214 SV sensing probe, which features a shorter length (2 1 16" insertion) specifically designed to fit into standard 3 4" NPT
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