| Power supply |
10..30 Vdc (R203-1-L, R203-2-L models)
90..264 Vac (50-60 Hz) (R203-1-H, R203-2-H models) |
| Consumption |
2.8 W |
| Isolation |
3,500 Vac (to/from power-supply circuits)
1,500 Vac (other circuits) |
| Status indicators |
Power supply, digital channels, RS485 communication, data-logger status, wiring error, Ethernet-port activity |
| Installation category |
600 V CAT III |
| Programming |
via web server. The SDD software can be used to locate and easily access the device. |
| Accuracy class |
0.2% for voltage/current; 0.5% for power |
| Flash memory |
8 MB |
| Special Network functions |
Dual Daisy Chain Ethernet connection
LAN fault bypass (active connection between the device's two Ethernet ports in the event of a power interruption)
Max 32 P2P (I/O Mirror) - No Master required
ModBUS Passthrough (TCP-IP to RS485)
IP, MAC and Firmware identification and configuration using SDD software |
| Special Energy functions |
Energy metering (on digital output), No. 2 incremental 32-bit counters on digital inputs @5kHz |
| Connection type / Connection mode |
Single-phase, 3-wire three-phase, 4-wire three-phase, CT, CT with mV output, Rogowski transducers, Aron |
| Protection rating |
Front IP20 |
| Mounting |
35 mm DIN rail |
| Connections |
screw terminals |
| Operating temperature |
-25..+65°C |
| Dimensions |
107x90x32 mm |
| Weight |
170 g |
| Enclosure |
UL94-V0 self-extinguishing PC/ABS, black |
| Voltage/Current Inputs |
| Phase-voltage measurement |
Voltage: up to 600 Vac, freq. 45 ÷ 65 Hz
VT with output up to 600 Vac relative to neutral |
| Phase-current measurement |
CT with 1-5 A FS output
CT with mV output or Rogowski up to 250 mV |
| INTEGRATED I/O |
| Digital inputs |
No. 2 activated by voltage from 12 to 24V, with 2 digital counters at 50 Hz |
| Digital outputs |
No. 2, Imax capacity = 50 mA Vmax = 28V |
| analog outputs |
No. 1 configurable for voltage 0..10 Vdc, min load resistance 2kΩ or 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 |
No. 1 RS485 port |
| Protocols |
ModBUS RTU |
| Distance |
Up to 1,200 m |
| Connectivity |
Max 128 nodes |
| Ethernet |
| Ports |
No. 1 Ethernet 100 Mbps (R203-1-x models)
No. 2 Ethernet 100 Mbps (R203-2-x models)
WiFi with stand-alone/2.4 GHz bgn access point mode |
| Protocols |
ModBUS TCP-IP, MQTT, HTTP POST, P2P, FTP |
| Connections |
Ethernet switch with Daisy Chain protection |
