RCM-BP Earth Leakage Protection Relay

The Earth Leakage Protection Relay(residual current relay) is an essential device to monitor and safeguard electrical equipment. It serves as a reliable safety measure for electrical systems, as it detects residual current in a circuit and promptly shuts off the power supply when the residual current surpasses a predetermined threshold value. This automatic shutdown protects both electrical equipment and personnel from potential electric shocks. RCM is commonly used in electrical systems in residential, industrial and commercial buildings to ensure the safe operation of electrical equipment.

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Features of residual current relay

  • Leakage detection.
  • Automatic power cut off.
  • Adjustable time delay and sensitivity.
  • High immunity to electrical interference
  • Over-limit warning
  • Rated residual operating current can be set
  • Remote reset and remote test functions
  • Modular size, DIN rail mounting. Easy to install and maintain
  • remote signal output function
  • High-definition display for easy data reading
  • Sealable front cover.

Application of Earth Leakage Protection Relay

  • Indirect contact protection, leakage indication
  • Insulation damage prevention
  • Grounding protection for motors and power distribution systems
  • Ground fault protection to prevent electric shock and equipment damage
  • Temperature over-value prompt for fire prevention
  • Improve equipment health through power distribution rectification

Specification of RCM Earth Leakage Protection Relay

Supply Voltage (Un) AC220V, ±15%,DC12V,DC24V,DC48V
Power supply 85-265VDC/AC
Rated voltage AC220V，±15%,DC12V, DC24V,DC48V
Measuring range 0.03mA~9.99A or 0.1-50A
Contact rating 5A
Power consumption 6VA
Weight 200g
Mounting 35mm Din Rail
Terminal protection IP20
Standard IEC 41-1, IEC 255, VDE 0664, EN 50081-1, EN 50082-2
Frequency 50/60 Hz
Temperature -20°C~60°C, RH:+95%,Non-condensation
Humidity 10% to 85%, Non-condensation
Reset mode Automatic, Manual, Remote
Adjustable Accuracy Less than ± 5%
Repeatability Less than 0.5% of full-scale

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