PC301 Invensys Barber Colman PC-301 Differential Pressure Switch Air Differential Pressure Switch. Snap Acting SPDT Switch. Range .7-1 W.C. Fixed Dif .04 At Minimum Set point To .1 At Max. 6.2A @ 120V. 3.1A @ 240V. Use AP301 Static Probe For Turbulent Air.
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