Bender MRCDB300 Series Quick Start Manual Download | Manualshive

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Quickstart guide EN

MRCDB300-series_D00343_05_Q_XXEN/01.2022

MRCDB300 series

AC/DC sensitive residual current monitoring module
for MRCD applications

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Summary of Contents for MRCDB300 Series

Page 1: ...Quickstart guide EN MRCDB300 series_D00343_05_Q_XXEN 01 2022 MRCDB300 series AC DC sensitive residual current monitoring module for MRCD applications...

Page 2: ...e in earthed power supplies TN and TT systems up to 800 V is possible These devices are suitable for monitoring AC and DC fault currents type B Any other use than that described in this document is re...

Page 3: ...ts must be plugged together and calibrated during commissioning Device view 21 22 24 11 12 14 K1 K2 3 4 7 8 9 1 2 5 6 10 11 12 11 12 13 14 No Terminal Meaning 1 24V Supply voltage US 2 GND 3 D1 Contac...

Page 4: ...ce i The use of a type 2 surge protection de vice SPD is mandatory due to possible impulse voltages and in order to comply with normative requirements The surge protection device must be con nected up...

Page 5: ...s the set limit of the prewarning de energised energised Alarm state off lights The device is supplied with the specified voltage and monitors the primary circuit A fault current flows which exceeds t...

Page 6: ...ys switch to safe state during offset calibration system is switched off Procedure of the first offset calibration Action LED 1 Install the measuring current transformer in the system off 2 Plug the e...

Page 7: ...ls by an electrically skilled person to ensure that they are functioning properly This requirement is deemed to be satisfied for normal and environmental conditions if the test intervals mentioned in...

Page 8: ...CTBC120 when I n 100 mA 330 A CTBC120P when I n 100 mA 630 A CTBC210 when I n 300 mA 630 A CTBC210P when I n 100 mA 630 A CTBC210P when I n 300 mA 1000 A Measurement accuracy 1 of full scale value Te...

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