Modular | Digital electricity meter | 1-phase | 45A | 230VAC | IP51 | MID | DIN | SDM120DB Eastron

Technical specifications:
Power supply: 230V AC (single-phase, phase + neutral)
Current measurement: from 0.25A to 45A
Rated current: 5A
Maximum current: 45A (with 120% overload tolerance)
Mounting: DIN rail (DIN 43880), 1 module
Display: Digital, with backlight
Energy display: Active energy (kWh)
Pulse output: 1000 pulses/kWh
Accuracy class: 1 (according to IEC 62053-21)
Certificates:
• MID: EN50470-1 & EN50470-3 (Class B)
• EMC: EN61326-1 & EN61326-2-3
• LVD: EN61010-1 & EN61010-2-3
Dust protection: IP51 (for indoor use)
Operating temperature: -20°C to +50°C
Storage temperature: -30°C to +70°C
Operating humidity: ≤ 75%
Storage humidity: ≤ 95%
Impulse withstand: 6kV (1.2 μs), 4kV for 1 minute

Functions:

Active energy (kWh) measurement

Fixed pulse output – suitable for energy analysis or BMS systems

Digital display with backlight for easy data reading

Compact – occupies only 1 DIN module

Terminal covers can be sealed for safety

Certified for billing systems (MID B+D)

Applications:

Residential installations – energy control in flats or houses

Commercial premises – office or retail energy monitoring

Industrial sites – monitoring individual lines or machines

Rental properties – accurate energy usage tracking between users

Pros:

MID certificate – suitable for official energy billing

Compact 1-module design – ideal for limited space panels

Pulse output – easy integration with meters, modems, or BMS

Easy to install – suitable for both professionals and individuals

Reliable and robust – protected from dust, overloads, and surges

Cost-effective – excellent price for professional functionality

Cons:

Limited to active energy measurement (no current, voltage, or power data)

No RS485 or Modbus communication – suitable only for basic systems

For single-phase circuits only – not suitable for three-phase systems

SDM120DB is a reliable, economical, and compact single-phase energy meter, ideal for professionals and private users alike. If you need a simple but MID-certified solution for energy monitoring and pulse metering, this is a great choice. Perfect for energy management, cost control, and accurate billing.