This device also performs the function of a Web Server and datalogger, allowing users to easily access key parameters and access data efficiently.
The user also has the option of transferring data via FTP. Some of its advanced features include:

  • Universal Input: Each device can be configured to accept single-phase, three-phase, TA, and TA with mV or Rogowski sensor inputs as required.
  • MQTT and HTTP POST Supported: Integrating advanced protocols, it offers instant access to real-time energy data wherever you are.
  • 8MB Data Memory: Equipped with enhanced memory for data/event storage, harmonics up to 55°A and THD, ideal for system analysis and optimization.
  • Maximum Flexibility: Also in the choice of power supply and Ethernet ports through which R203 offers ModBUS TCP-IP / ModBUS RTU gateway functions
  • Digital I/O Channels: Features 2 digital outputs and 2 independent inputs with 32-bit meters for active, reactive, and apparent energy metering.

With our R203 power meter, you get a reliable and versatile tool for monitoring and managing your power grid.

TECHNICAL DATA

Power Supply 10..30 Vdc (models R203-1-L, R203-2-L)
90..264 Vac (50-60 Hz) (models R203-1-H, R203-2-H)
Max Power Consumption 2.8 W
Isolation 3,500 Vac (to/from power circuits)
1,500 Vac (other circuits)
Status Indicators Power supply, digital channels, RS485 communication, data logger status, wiring error, Ethernet ports activity
Installation category 600 V CAT III
Programming via Web Server. Through the SDD software, it is possible to locate the device and easily access it.
Precision class 0.2% for voltage/current; 0.5% for power
Flash memory 8 MB
Network Features Dual Daisy Chain Ethernet Connection
LAN fault bypass (the active connection between the two Ethernet ports of the device in case of power failure)
Max 32 Peer-to-Peer Rules (I/O Mirror) - No Master required
ModBUS Passthrough (TCP-IP to RS485)
Identification and configuration IP, MAC, and Firmware via SDD tool
Energy Features Energy metering (on output digital output) No. 2 incremental counters 32 bits on digital inputs @5kHz
Type of insertion / Connection mode Single-phase, 3-phase 3-wire, 3-phase 4-wire, CT, CT with mV output, Rogowski transducers, Aron
Frontal Protection degree IP20
Mounting DIN RAIL 35 mm guide
Connections Screw terminals
Operating temperature -25..+65 °C
Dimensions 107x90x32 mm
Weight 170 g
Case PC/ABS self-extinguishing UL94-V0, black color
Voltage/current inputs
Measurement inputs VOLTAGE: up to 600 Vac, freq. 45 ÷ 65 Hz
CURRENT: CT 1 ÷ 5 A full scale; voltage (mV) for CTs with voltage output or Rogowski: up to 333 mV f.s.
Rogowski analog inputs TENSION: up to 600 Vac, freq. 45 ÷ 65 Hz
ROGOWSKI (supplied by SENECA): 100 mV ↔ 1000 A @ 50 Hz (sinusoidal); 120 mV ↔ to 1000 A @ 60 Hz (sinusoidal); Max measurable current: 2,5 kA @ 50 Hz; 2 kA @ 60 Hz
Integrated I/Os
Digital inputs Nr.2 activatable with voltage from 12 to 24V
Digital outputs Nr.2 capacity Imax = 50 mA Vmax = 28V
Analog outputs Nr.1 settable: in VOLTAGE 0..10 Vdc, min load resistance 2kΩ or in CURRENT 0..20, 4..20 mA, max load resistance 500Ω
Transmission error: 0,1 % of max range
Thermal drift: 100 ppm/K
COMMUNICATION
Serial
Interfaces Nr.1 RS485 port
Protocol ModBUS RTU
Distance Up to 1,200 m
Connectivity Max 128 nodes
Ethernet
Ports Nr.1 Ethernet Port 100 Mbps (R203-1-x models)
Nr.2 Ethernet Ports 100 Mbps (R203-2-x models)
Protocol ModBUS TCP-IP, MQTT, HTTP POST, P2P, FTP
Connections Ethernet switch with Daisy Chain protection

Manuals, flyers

 
IT EN FR DE ES
R203, S203, T203 Series Energy Power Meters
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Installation Manual
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User Manual
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Firmwares

 
IT EN
Firmware SW01987-1.0.2.7 (please read release notes)
zip icon Multi txt icon it txt icon en
Firmware SW01987-1.0.2.1 (please read release notes)
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DRAWINGS & CAD MODELS

 
2D Model
zip icon Multi
3D Model
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Certifications

 
CE Declaration of Conformity
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REACH and ROHS declarations
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Customs codes
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Product versions

Price
R203-1-L

Energy power meter with Ethernet port and universal input (power supply 24V)
[Product version available while stocks last]

In stock ?
325.00
R203-1-H

Energy power meter with Ethernet port and universal input (power supply 230V)
[Product version available while stocks last]

In stock ?
310.00
R203-2-L

Energy power meter with 2 Ethernet ports and universal input (power supply 24V)

Availability to confirm, please contact us ?
345.00
R203-2-H

Energy power meter with 2 Ethernet ports and universal input (power supply 230V)

In stock ?
330.00

Accessories

Price
CE-RJ45-RJ45-R

Ethernet cable (right) ( RJ45 / RJ45 )

Availability to confirm, please contact us ?
7.00
RC150-025-100-3M

Rogowski Coil L=25 cm, Ø int. 8 cm, 100mV/1KA-50Hz and cable L=3mt

In stock ?
100.00
RC150-025-100-5M

Rogowski Coil L=25 cm, Ø int. 8 cm, 100mV/1KA-50Hz and cable L=5mt

Limited quantity available ?
110.00
RC150-035-100-3M

Rogowski Coil L=35 cm, Ø int. 11 cm, 100mV/1KA-50Hz and cable L=3mt

In stock ?
104.00
RC150-040-100-3M

Rogowski Coil L=40 cm, Ø int. 12 cm, 100mV/1KA-50Hz and cable L=3mt

In stock ?
104.00
RC150-040-100-5M

Rogowski Coil L=40 cm, Ø int. 12 cm, 100mV/1KA-50Hz and cable L=5mt

In stock ?
113.00
RC150-060-100-3M

Rogowski Coil L=60 cm, Ø int. 19 cm, 100mV/1KA-50Hz and cable L=3mt

In stock ?
110.00
RC150-060-100-5M

Rogowski Coil L=60 cm, Ø int. 19 cm, 100mV/1KA-50Hz and cable L=5mt

Availability to confirm, please contact us ?
123.00
RC150-090-100-3M

Rogowski Coil L=90 cm, Ø int. 28 cm, 100mV/1KA-50Hz and cable L=3mt

Limited quantity available ?
155.00
RC150-090-100-5M

Rogowski Coil L=90 cm, Ø int. 28 cm, 100mV/1KA-50Hz and cable L=5mt

Limited quantity available ?
168.00
RC150-120-100-3M

Rogowski Coil L=120 cm, Ø int. 38 cm, 100mV/1KA-50Hz and cable L=3mt

Availability to confirm, please contact us ?
250.00
RC150-180-100-3M

Rogowski Coil L=120 cm, Ø int. 38 cm, 100mV/1KA-50Hz and cable L=3mt

Availability to confirm, please contact us ?
402.00
RC150-120-100-5M

Rogowski Coil L=120 cm, Ø int. 38 cm, 100mV/1KA-50Hz and cable L=5mt

Availability to confirm, please contact us ?
245.00
RC190-030-333-3M

Rogowski Coil Coil-L=30cm, Øint. 9cm, 333mV/1KA-50Hz, cable-L=3mt

In stock ?
123.00
RC190-035-333-3M

Rogowski Coil Coil-L=35cm, Øint. 11cm, 333mV/1KA-50Hz, cable-L=3mt

Limited quantity available ?
127.00
RC190-060-333-3M

Rogowski Coil Coil-L=60cm, Øint. 19cm, 333mV/1KA-50Hz, cable-L=3mt

Limited quantity available ?
134.00
RC190-090-333-3M

Rogowski Coil Coil-L=90cm, Øint. 28cm, 333mV/1KA-50Hz, cable-L=3mt

Availability to confirm, please contact us ?
188.00