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The switch unit shall contain SPDT (Form C) switch(es). One switch shall be set to operate at 30 psi (2,1 bar) on a pressure decrease. If two switches are provided, the second switch shall be set to operate at a 50 psi (3,5 bar) on a pressure increase. Switch contacts shall be rated at 10.1 Amps at 125/250VAC and 2.0 Amps at 30VDC.
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