Energy Manager EM210Heat water with the PV system. The 2-quadrant meter

Energy Manager EM210
  • Smart Energy Flow for your residential solar power system
  • Efficient and intelligent augmentation of captive use
  • ModBus RTU connection for heating element (RS485 interface)
  • Visualization via WebGui (iOS or Android)
  • 2-quadrant smart meter
measures electricity purchases and feeds for each phase
on-board storage of metering data
integrated web server
visualization through web interface, IOS App, Android App
brings up measured values of electricity purchases and feeds, both as an aggregate value and for each phase in kWh
manual and automated export of measured data through email, FTP
LAN interface (EM210 L), LAN/RS485 interface (EM210 LR)
Optionally available: Smart Heater through RS485 for easy plug&play-energy-management

* not certified for generation of data for invoicing

Operating conditions

Ambient temperature:
  • -25°C...+45°C with reduced In to 32 A: -25°C...+55°C*
Storage temperature:
  • -25°C…+60°C
Relative humidity (non-condensing):
  • Up to 75% annual average (non-condensing), up to 95% on up to 30 days/year
Max. Height during operation:
  • 2000m above NN

Operating System

Operating System:
  • Embedded Linux with integrated TCP/IP Stack

Personal consumption

Voltage path:
  • < 0.01 VA per phase
Current path:
  • < 2 VA per phase
Complete device:
  • < 5 W without activated WLAN
Limiting current:
  • 63 A
Nominal current:
  • 5 A
Starting current:
  • < 25mA

Mechanical data

Housing material:
  • Glass fibre reinforced polyamide
Glow wire test:
  • Text according to IEC 695-2-1
Protection class/type:
  • II/IP2X
  • 0.3 kg
  • 88x70x65 mm

Measurement accuracy

  • Accuracy class according to IEC 61557-12. Related to the measured value Energy manager
  • +/- 0.5%
  • 63 A
Active power:
  • +/- 1.0%
Apparent power:
  • +/- 1.0%
Reactive power:
  • +/- 1.0%
Power factor:
  • +/- 1.0%
Active energy:
  • Class 1
Reactive energy:
  • Class 1
  • Note: When using external current transformers, the respective measuring accuracy must be taken into account.


Wire size:
  • 0.25-1.5 mm²
Torque for screw terminal:
  • 2.0 Nm

Product norms

EN 61010:
  • yes

CPU/Processor data

  • ARM9 processor mit 450 MHz, DDR2 RAM mit 128 Mbyte eMMC Flash 4 Gbyte


  • 10/100 Mbit
  • 802.11 b/g/n
  • Half-Duplex, max. 115200 Baud

Voltage and current inputs

Rated voltage:
  • max. 230/400 V~ (without WLAN), 230/400 V~ (with WLAN)
Operating voltage:
  • 110/230 V~ V +/-10% (without WLAN), 230 V~ V +/-10% (with WLAN)
  • 50/60Hz +/-5% (without WLAN), 50Hz +/-5% (with WLAN)

TQ-Automation - Hot water production with the EM210 (630 KB, pdf)

Comprehensive brochure on hot water generation with the heating element and Energy Manager EM210 from TQ-Automation

Manual Energy Manager EM210 (7 MB, pdf)

Manual for Energy Manager EM210

Installation guide EM210/EM300 (471 KB, pdf)

Installation guide for Energy Manager EM210 and EM300


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