Power Meter EM

Use the Power Meter to measure branches up to 3000A, using a standard Modbus-RTU to provide voltage, current, power factor and frequency data for 1-3 phases, as well as temperature.

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Product details

The EM is an ultracompact three phase power meter, fitting in only two DIN rail units. Providing an industry standard Modbus/RTU interface, each device has a unique identifier, easily allowing integration into your existing Modbus infrastructure.

The EM is available in two versions; EM-SC for use with traditional split core current transformers, and EM-FC for flexible coil current transducers.

  • Compact size at 2 DIN rail units (34x86x60mm)
  • Output values: kWh, kW, A, V, PF, Hz
  • Measured Voltage: 400/230 V
  • Power source: wide input, 5-24V DC
  • Interface Protocol: Modbus RTU – 19200, 8, E, 1 (default settings)
  • Split-Core 100mA current transformers (up to 500A)
  • Flexible Coil transformers (up to 3000A)
  • Accuracy in accordance with IEC-61557-12 Class 1.0 for Active Energy

Frequently Asked Questions

What is the difference between EM-SC and EM-FC?

We have 2 versions of our Power Meter. EM-SC refers to usage of our split core CTs, and it can be used to measure power from 80-500A. EM-FC is intended to be used with our flexible coils and can be used to measure power from 1000-3000A.

How much space does it take in the electrical cabinet?

The accuracy is +/- 1.0% (IEC-61557-12 Class 1.0 for Active Energy).

Is the power meter MID approved?

This meter is not MID approved.

What are the output values?

The output values are Wh, varh, A, V, PF, Hz and environmental temperature

Cloud dashboard

Our software doesn’t require a dedicated installation with additional hardware for hosting, and there are no hidden costs or maintenance costs.

Gateway EG

The EG-200 is an open Linux gateway, with RS485 Modbus RTU, Modbus TCP and MQTT, HTTP & SNMP interfaces.

Power Meter EM

Use the Power Meter to measure branches up to 3000A, using a standard Modbus-RTU to provide voltage, current, power factor and frequency data for 1-3 phases, as well as temperature.

Power Bar EB

The EB is a compact AC current and power measurement device that enables accurate monitoring of every breaker of interest, without taking up any DIN-rail space.

Split Core CT

For use with EM power meters. Our Split Core CTs are available in three window sizes and rated from 80A to 500A.

Flexible Coils

The flexible coil current transformers are based on the Rogowski principle and have been designed for accurate, non-invasive measurement of AC current.

Cables

The premade Modbus cables by eTactica are designed to make it easier to set up Modbus devices that use Molex connectors.