Home > SEM One - Single-phase Modbus Energy Meter

SEM One

Single phase energy meter SEM One 4 quadrants and operating hours Modbus RS-485
 

The first of its kind

 

SEM One is economical, simple and accurate. Measuring consumptions has never been so cost effective.

 
 
 

The king of submetering

 

SEM One is ideal for submetering applications where energy savings, costs distribution and quality measurement are key factors of an installation. In short, energy efficiency.

 

 
Single phase energy meter SEM One 4 quadrants and operating hours Modbus RS-485
 

Sometimes is better make it easy

 

SEM One reads 12 electrical parameters and no more, but you’ll have more than enough.

 

 

 

 

Bold complements

 

Split or closed core transformers. You choose.

 

Request for quotation

 

 

 

SEM One - Single phase Modbus energy meter

SEM One is a single-phase power analyzer that allows to monitor electrical parameters of your installation including energy, voltage, current, power and more. The design, of compact dimensions, allows that SEM One can be placed easily at any installation.

The devices has removal connectors for power supply (85-265 Vac), external current transformers (250 mA output) and RS-485 communications.

The communication of measured data works over Modbus RTU standard protocol.

 

SEM One - Single phase Modbus energy meter

  • RS-485 slave
  • Modbus RTU protocol
  • Remote configuration
  • Status LEDs
  • Manual reset
  • Compact dimensions. 1 DIN rail module
  • 230 Vac input voltage
  • PC self-extinguishing box

Single-phase split-core transformers

TRA1 20A

  • Maximum current 20 A
  • Secondary 250 mA
  • Inner diameter 16 mm
  • Class 3

TRA1 80A

  • Maximum current 80 A
  • Secondary 250 mA
  • Inner diameter 10 mm
  • Class 3

TRA1 100A

  • Maximum current 100 A
  • Secondary 250 mA
  • Inner diameter 16 mm
  • Class 3

TRA1 250A

  • Maximum current 250 A
  • Secondary 250 mA
  • Inner diameter 25 mm
  • Class 3

Single-phase closed core transformers

TRC1 20A

  • Maximum current 20 A
  • Secondary 250 mA
  • Inner diameter 13 mm
  • Class 0.5

TRC1 100A

  • Maximum current 100 A
  • Secondary 250 mA
  • Inner diameter 12 mm
  • Class 0.5

TRC1 250A

  • Maximum current 250 A
  • Secondary 250 mA
  • Inner diameter 19 mm
  • Class 0.5

 

 

SEM One - Single phase Modbus energy meter

Datasheet SEM One  English  Español

Manual SEM One  English  Español  Português

User manual SEM One  Multilanguage

Single-phase split-core transformers

Manual TRA1 20A  English  Español  Português

Manual TRA1 80A  English  Español  Português

Manual TRA1 100A  English  Español  Português

Manual TRA1 250A  English  Español  Português

Single-phase closed-core transformers

Manual TRC1 20A  English  Español  Português

Manual TRC1 100A  English  Español  Português

Manual TRC1 250A  English  Español  Português

 

 

Contact

Viladecavalls (Barcelona) Spain

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