The RCMB301 is the evaluation electronics unit of the LINETRAXX RCMB300 series AC/DC-sensitive residual current monitoring modules manufactured by Bender (Germany).
Core Functions and Technical Specifications
• System Application: Mainly used to continuously monitor AC and DC fault currents in grounded systems (TN and TT systems).
• Measuring Range and Frequency: Supports measuring residual currents up to 20 A, with a frequency range covering DC to 100 kHz.
• Signal Output: Features two independently adjustable response values (pre-alarm and alarm). Output relays K1 and K2 will be triggered when the alarm value is reached.
• Communication Interface: Integrated RS-485 interface supporting Modbus RTU protocol for real-time transmission of measured values, alarm status and device parameter setting.
• Operating Voltage: Rated supply voltage is DC 24 V.
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