UMG 20CM

The Janitza UMG 20CM is a cutting-edge device designed for both residual current monitoring (RCM) and energy measurement. With 20 current measurement channels and 4 voltage measurement channels, it offers precise monitoring of operating currents up to 600 A & residual currents ranging from 10 mA to 1000 mA.

This compact system is suitable for new installations and retrofitting existing setups. Its high sampling rate of 20,000 Hz ensures accurate data capture, while the internal RS485 interface with Modbus RTU protocol allows for seamless integration into various systems.

Each of the 20 current channels is equipped with an LED indicator, providing real-time status updates: green for normal operation, yellow for warnings, and red for nominal current exceedance. Integration with Janitza’s GridVis® software facilitates straightforward monitoring, analysis, and parameterization, enhancing the overall efficiency and safety of electrical installations.

Janitza UMG 20CM Product Features:

• 20 current measurement channels with ±0.5% accuracy
• 4 voltage measurement channels with ±0.5% accuracy
• Internal RS485 interface (Modbus RTU as Slave)
• 20 LEDs indicating channel status (Green = OK, Yellow = Warning, Red = Nominal current exceed)
• Measurement range up to 63 A with closed or split-core current transformers
• High sampling rate of 20,000 Hz
• Current transformer connection monitoring (detects wire breaks)
• Harmonics analysis up to the 63rd harmonic via analysis channel
• Storage of minimum and maximum values with timestamps
• Standard measured values: Voltage (V), Current (A), Active Power (kW), Apparent Power (kVA), Reactive Power (kVar), Energy (kWh)
• Wide-range power adapter (90–276 V AC/DC)
• Scalable system design

The Janitza UMG 20CM supports both three-phase and single-phase energy measurements, as well as RCM measurements for these systems.