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Residual current monitor RCM475LY Wiring diagram – System connection, external connections Wiring diagram – front plate
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} 1 - Combined TEST and RESET button: short-time pressing ( 2s) = TEST.2 - Power On LED3 - Alarm LED: lights when the fault current exceeds the response value.4 - LED bar graph indicator: shows the measuring value in per cent related to the preset response value.5 - Potentiometer for setting the response delay (0…1 s).6 - Potentiometer for setting the response value (x 1…10 mA).Setting of the DIP switches (white = switch position) 7 - Operating principle of the alarm relayA - N/O operation B - N/C operation 8 - Fault memory behaviour alarm relay and alarm LEDA - fault memory ONB - fault memory OFF 9 - Setting of the response rangeA - 10 mAB - 30 mAC - 100 mA x 1…10D - 300 mAE - 500 mAF - 1000 mA 10 - Setting of the response delayA - x 1 0…1sB - x 10 1 - Supply voltage U
S (see ordering information), a 6 A fuse re-commended for line protection.2 - External measuring instrument3 - External TEST and RESET button4 - Alarm relay: switches when the fault current exceeds the re-sponse value.5 - Internal measuring current transformer Note! Do not route the PE conductor through the measuring current transformer!

Residual Current Monitors - 14922 }

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Main catalogue part 4 – 04.2007/Residual current monitors, Residual current monitoring systems 39