Janitza UMG 103-CBM
Official manufacturer GLOBAL verified Sept. 25, 2026
Direct fetch from images.janitza.com
Identity
| brand | Janitza |
| category | smart_meters |
| manufacturer | Janitza |
| manufacturer_key | janitza |
| model | UMG 103-CBM |
| model_key | umg103cbm |
| product_family | UMG 103 |
| product_status | active |
| region | GLOBAL |
| series | UMG 100 series |
Electrical
| accuracy_class | Class 1 (IEC 62053-21) / Class B (EN 50470-3) |
| accuracy_class_active_energy |
0.5S (.../5 A)
UMG 103-CBM | Technical data
|
| bidirectional_metering | True |
| ct_secondary_current_a |
5
UMG 103-CBM | Technical data
|
| current_measuring_range_a |
0.005 .. 6 Arms
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| current_overload_1s_a |
60
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| direct_current_max_a |
Not applicable - the device is connected through external current transformers
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| frequency_hz |
45 Hz .. 65 Hz
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| harmonics_order |
1st - 40th
UMG 103-CBM | Technical data
|
| local_modbus_available |
True
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| manufacturer_part_number |
5228001
UMG 103-CBM | Technical data
|
| measurement_category |
300 V CAT III
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| measurement_type | Current Transformer (CT) |
| memory_mb |
4
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| meter_type |
DIN-rail energy meter / power quality analyser, current-transformer connected
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| nominal_voltage_l_l_max_v |
480
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| nominal_voltage_l_n_max_v |
277
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| phase_count |
3
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| physical_interfaces |
['RS485']
UMG 103-CBM | Technical data
|
| rated_current_a |
6
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| rs485_baud_rates |
9.6 kbps, 19.2 kbps, 38.4 kbps, 57.6 kbps, 115.2 kbps
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| supply_voltage |
115 - 277 V (+/-10%), 50/60 Hz (single phase); 80 - 277 V (+/-10%), 50/60 Hz (three phases)
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
Physical / mechanical
| dimensions_mm |
98 x 71.5 x 46 (h x w x d)
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
Installation
| mounting |
35 mm top hat rail
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
Interfaces & connectors
| cloud_required |
False
UMG 103-CBM | Technical data
|
| documented_ports | [{'port_role': 'RS485', 'port_label_from_manual': 'RS485', 'port_type': 'RS485', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'quantity': 1, 'document': 0, 'page': 'Interfaces', 'quote': 'Interfaces and Protocols | "Modbus RTU/Slave" at "9.6 kbps, 19.2 kbps, 38.4 kbps, 57.6 kbps, 115.2 kbps"'}] |
| protocols |
['Modbus RTU (slave)']
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
| rs485 | True |
Protection
| ingress_protection |
IP20
Power Quality Analyser UMG 103-CBM - data sheet (English)
|
Documents
product_page
UMG 103-CBM
product_page
UMG 103-CBM | Technical data
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| builder_completeness | partial |
| region_notes | One worldwide specification: 300 V CAT III, 45-65 Hz, and the product page lists UL certification alongside the IEC data, so the same item number 5228001 is sold in both IEC and UL markets. |
| withheld:rs485_port_count | 1 |