HERMETIC SWITCH PRX+3800 (Form B) and PRX+3900 (Form C) magnetic, cylindrical (tubular) proximity sensors provide the advantages of reed switch sensing technology with smaller physical dimensions. PRX+3800 (Single Pole Single Throw Normally Closed) reed switch contained in a temperature resistant cylindrical (tubular) housing which has a nominal size of 0.125 inch (3.18mm) diameter and 0.750 inch (19.05 mm) length. PRX+3900 (Single Pole Double Throw) is a change-over reed switch with similar housing and dimensions.
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