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UMG 103-CBM · Janitza Electronics GmbH
Janitza Electronics GmbHEnergy Analyzers

UMG 103-CBM

Compact energy analyzer

The UMG 103-CBM is Janitza's smallest DIN-rail meter, built to fit inside tight sub-distribution boards where a standard 96 mm panel meter won't fit. It has its own onboard battery and clock, so it can log historical data and keep tracking min/max and energy values even without a live network connection, working either stand-alone or as a Modbus slave reporting up to a master device such as the UMG 96RM-E.

Key Features

  • 01Very compact housing (4 HP) for crowded sub-distribution enclosures
  • 02Onboard battery + real-time clock for local data retention/timestamping
  • 03Harmonics measurement up to the 40th order
  • 04Min/max/working-value storage, running-hours meter, thermal trip-curve function
  • 052 comparator groups (3 comparators each) for alarms
  • 06Works standalone or as RS485/Modbus slave under GridVis software

Applications

Technical Specifications

UMG 103-CBM

Technical Specifications · UMG 103-CBM
Measurement inputs3-phase 4-wire voltage (up to 277/480 V); current 0.005–6 A RMS, rated 5/6 A, overload 60 A/1s
AccuracyActive energy Class 0.5S (…/5 A)
Communication protocolsRS485, Modbus RTU (slave), 9.6–115.2 kbps
DisplayNo onboard graphic display: read via Modbus / GridVis
Memory / data logging4 MB flash, ~400,000 stored values (~144 days typical)
Installation type35 mm DIN rail (IEC/EN 60999-1)
Harmonics1st–40th order (Fourier analysis), crest factor
Certifications / standardsUL listed; IP20; UL94V-0; IK07 (2 J)
Dimensions98 × 71.5 × 46 mm, ~200 g
Power supply115–277 V AC (1-phase) or 80–277 V AC (3-phase), ±10%, 50/60 Hz

Technical values are taken from the manufacturer's published documentation. Confirm against the current datasheet before ordering.

Downloads

Datasheets, manuals and technical documentation are available from the manufacturer's document centre, or on request from us.

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