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Rhomberg Proximity Sensors
Ever been unable to correctly identify an old proximity sensor with a faded label? Rhomberg sensors are uniquely colour coded to eliminate this problem, as explained below:
Red Cable - AC type Blue Cable - Namur type Green Cable - NPN type Yellow Cable - PNP type				Red LED - Normally Open Output Green LED - Normally Closed Output Black Sensing Face - Inductive White Sensing Face - Capacitive
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